LW21 - Video projector BENQ - Free user manual and instructions

Product Type	Video Projector
Brand	BenQ
Model	LW21
Display Technology	DLP
Native Resolution	WXGA (1280 x 800)
Brightness	3000 ANSI Lumens
Contrast Ratio	15000:1
Lamp Life (Normal/Eco)	up to 4000 / 6000 hours
Lamp Type	195W
Projection Size	60" - 300"
Throw Ratio	1.49 - 1.79:1
Zoom	1.2x manual
Keystone Correction	±40° (vertical)
Built-in Speaker	10W mono
Inputs	2x HDMI, 1x VGA, 1x USB-A, 1x Audio 3.5mm
Outputs	1x VGA, 1x Audio 3.5mm, RS-232
Noise Level (Eco)	27 dB
Power Consumption	270W (max)
Dimensions (W x D x H)	330 x 247 x 109 mm
Weight	2.8 kg
Power Supply	AC 100-240V, 50/60Hz
Remote Control	Included (IR)
Security	Kensington lock, password protection
Cleaning Instructions	Use a soft, dry cloth; clean air filter every 100 hours
Replacement Parts	Lamp (model: 5J.J5L05.001), filter

Frequently Asked Questions - LW21 BENQ

How do I replace the lamp in my BenQ LW21 projector?

Turn off the projector and unplug it. Wait for the lamp to cool completely. Open the lamp cover on the bottom, unscrew the lamp module, and replace it with a compatible lamp (model 5J.J5L05.001). Reset the lamp hour counter in the settings menu.

What is the maximum projection size of the LW21?

The BenQ LW21 can project from 60 inches up to 300 inches diagonally, depending on the distance and zoom setting.

Can I connect my laptop via HDMI?

Yes, the LW21 has two HDMI inputs. Use a standard HDMI cable to connect your laptop. Select the correct input source using the remote or control panel.

How do I clean the air filter?

Turn off and unplug the projector. Remove the filter cover, take out the filter, and gently vacuum or wash it with mild soap and water. Let it dry completely before reinstalling. Clean every 100 hours of use.

The image is upside down. How do I fix it?

Go to the projector's menu, select 'System Setup' > 'Projection Mode' and choose 'Front Ceiling' or 'Rear Ceiling' depending on your mounting orientation. You can also adjust via the remote.

What is the lamp life of the LW21?

In normal mode, the lamp lasts up to 4000 hours. In Eco mode, it can last up to 6000 hours. The actual lifespan may vary.

Why is there no sound from the built-in speaker?

Check that the audio source is connected properly and the volume is turned up. Ensure the projector's speaker is not muted. For HDMI, audio is embedded; for VGA, use a separate audio cable.

Can I mount the LW21 on a ceiling?

Yes, the projector has mounting points for a ceiling mount. Use a compatible projector mount and ensure the ceiling can support the weight (2.8 kg). Follow the installation guide for safety.

What does the 'LAMP' indicator mean?

A flashing or solid 'LAMP' indicator usually signals that the lamp needs to be replaced or that there is a lamp error. Check the lamp life in the menu and replace if necessary.

How do I reset the lamp hour counter?

After replacing the lamp, go to 'System Setup' > 'Lamp Settings' > 'Reset Lamp Timer' and confirm. This clears the hour count for the new lamp.

USER MANUAL LW21 BENQ

Abstract gradient pattern with purple-to-white halftone dots forming a wave-like shape (no text or symbols)

Table of contents

Important safety instructions .... 3

Introduction...... 7

Projector features......7

Shipping contents 8

Projector exterior view......9

Positioning your projector .... 15

Choosing a location....15

Obtaining a preferred projected image size....16

Connection ...... 18

Connecting a computer or monitor...19

Connecting Video source devices.....20

Operation 24

Starting up the projector 24

Adjusting the projected image .....25

Using the menus....28

Securing the projector....29

Switching input signal 32

Magnifying and searching for details ...33

Selecting the aspect ratio ....33

Optimizing the image 35

Setting the presentation timer ......39

Remote paging operation......40

Hiding the image....41

Freezing the image ....41

Operating in a high altitude environment....42

Adjusting the sound......42

Use Teaching Template ....43

Select the lamp saver mode......44

Personalizing the projector menu display.... 44

Shutting down the projector 45

Menu operation 46

Maintenance 59

Care of the projector.... 59

Lamp information 60

Troubleshooting...... 63

Specifications...... 64

Dimensions 65

Ceiling mount installation 65

Timing chart.... 66

Warranty and Copyright information.... 73

Important safety instructions

Your projector is designed and tested to meet the latest standards for safety of information technology equipment. However, to ensure safe use of this product, it is important that you follow the instructions mentioned in this manual and marked on the product.

Safety Instructions

1. Please read this manual before you operate your projector. Save it for future reference.

Cartoon illustration of a smiling projector with eyes and a mouth, being handled by hands (no text or symbols)

1. Do not look straight at the projector lens during operation. The intense light beam may damage your eyes.

Illustration of a projector with sunglasses emitting sound waves, accompanied by a prohibition symbol (no text or labels)

1. Refer servicing to qualified service personnel.

Cartoon illustration of a smiling book character wearing a cap with the word 'benq' and giving thumbs up (no text or symbols on the character itself)

1. In some countries, the line voltage is NOT stable. This projector is designed to operate safely within a mains voltage of 19 volts DC, but could fail if power cuts or surges of ±10 volts occur. In areas where the mains voltage may fluctuate or cut out, it is recommended that you connect your projector through a power stabilizer, surge protector or uninterruptible power supply (UPS).

Cartoon illustration of a projector with visible lens and head, connected to a plug (no text or symbols)

1. Do not block the projection lens with any objects when the projector is under operation as this could cause the objects to become heated and deformed or even cause a fire.

Safety Instructions (Continued)

1. Never replace any electronic components unless the projector is unplugged.

Cartoon illustration of a smiling rectangular object with arms and legs, holding a probe (no text or symbols)

1. Do not place this product on an unstable cart, stand, or table. The product may fall, sustaining serious damage.

Cartoon illustration of a computer monitor with a mouse inside, surrounded by floating speech bubbles and a cup on a base (no text or symbols)

1. Do not attempt to disassemble this projector. There are dangerous high voltages inside which may cause death if you should come into contact with live parts. Refer servicing only to suitably qualified professional service personnel.

Cartoon illustration of a computer monitor with a screwdriver and two legs, emitting exhaust smoke (no text or symbols)

1. When the projector is under operation, you may sense some heated air and odor from its ventilation grill. It is a normal phenomenon and not a product defect.

2. Do not place this projector in any of the following environments.

- Space that is poorly ventilated or confined. Allow at least 50 cm clearance from walls and free flow of air around the projector.

- Locations where temperatures may become excessively high, such as the inside of a car with all windows rolled up.

- Locations where excessive humidity, dust, or cigarette smoke may contaminate optical components, shortening the projector's life span and darkening the image.

Simple line drawing of a kettle on a stove, a broom with smoke, and a broom on a stand (no text or symbols)

Safety Instructions (Continued)

• Locations near fire alarms
• Locations with an ambient temperature above 40^ C / 104^ F
• Locations where the altitudes are higher than 3000 m (10000 feet).

II. Do not block the ventilation holes.

• Do not place this projector on a blanket, bedding or any other soft surface.
• Do not cover this projector with a cloth or any other item.
• Do not place inflammables near the projector.

Simple line drawing of a smiling, anthropomorphic object resembling a folded paper or block with steam or smoke (no text or symbols)

If the ventilation holes are seriously obstructed, overheating inside the projector may result in a fire.

1. Always place the projector on a level, horizontal surface during operation.

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1. Do not stand the projector on end vertically. Doing so may cause the projector to fall over, causing injury or resulting in damage to the projector.

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1. Do not step on the projector or place any objects upon it. Besides probable physical damage to the projector, doing so may result in accidents and possible injury.

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1. Do not place liquids near or on the projector. Liquids spilled into the projector may cause it to fail. If the projector does become wet, disconnect it from the power supply's wall socket and call BenQ to have the projector serviced.

Cartoon illustration of a computer monitor with a mouse on top, connected to a cable and a small figure emerging from its window (no text or symbols)

Safety Instructions (Continued)

1. This product is capable of displaying inverted images for ceiling mount installation.

Use only BenQ's Ceiling Mount Kit for mounting the projector and ensure it is securely installed.

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Introduction

Projector features

This model is one of the best projectors available in the world. You can enjoy the best performance video quality with up to 300-inch projection across various devices such as PC, laptop, DVD and VCR even document camera to bring all possibility to life.

The projector offers the following features

• Advanced laser light source
  Long lasting laser provides a longer life span than traditional lamps.

- SmartEco™ starts your dynamic power saving

SmartEco ^™ technology saves light source power consumption up to 70% depending on the content brightness level when SmartEco mode is selected

- Longer hours light source life with SmartEco™ technology

SmartEco™ technology increases the light source life hours when selecting SmartEco mode to lower the power consumption

• ECO BLANK saves 70% of light source power

Pressing the ECO BLANK bottom to immediately hide the image, lowering 70% of the light source power at the same time your image is hiding

• Less than 0.5W in standby condition

Less than 0.5W power consumption under standby mode

- Filter Free

Filter free design to lower maintenance and operating costs.

• One-key auto-adjustment

Pressing AUTO on the keypad or remote control to show the best picture quality immediately

• Auto Power Off, Direct Power On

Auto Power Off function allows the projector to turn off automatically if no input signal is detected after a set period of time. Direct Power On turns your projector when the power is fed.

• 3D Function supported

Various 3D formats make the 3D function more flexible. By presenting the depth of the images, you can wear BenQ 3D glassed to enjoy the 3D movies, videos and sporting events in a more realistic way.

- The apparent brightness of the projected image will vary depending on the ambient lighting conditions, selected input signal contrast/brightness settings, and is proportional to projection distance.

- The brightness will decline over time and may vary within the manufacturers specifications. This is normal and expected behavior.

Shipping contents

Carefully unpack and verify that you have all of the items shown below. If any of these items are missing, please contact your place of purchase.

Standard accessories

The supplied accessories will be suitable for your region, and may differ from those illustrated.

*The warranty card is only supplied in some specific regions. Please consult your dealer for detailed information.

Line drawings of a projector and two connected cables (no text or symbols)

Projector Power cord VGA cable

Illustration of a CD, its front view, and a blank card with a purple logo (no text or symbols on the main objects)

Quick start guide User manual CD Warranty card*

Remote control with battery

Optional accessories

I. Spare lamp kit
2. Ceiling mount kit
3. Carry bag

1. 3D glasses
2. Presentation plus

Projector exterior view

Front/upper side

Rear/lower side

1. External control panel (See "Projector" on page 10 for details.)
2. Ventilation holes (exhaust)
3. Zoom ring
4. Quick-release button
5. Projection lens
6. Focus ring
7. Ventilation holes (intake)
8. Speaker
9. Front IR remote sensor
10. Audio output jack
    II. Audio input jack
11. S-Video input jack
12. RGB (PC)/Component video (YPbPr/ YCbCr) signal input jack
13. RGB signal output jack
14. HDMI input jack
15. RS-232 control port
16. USB input jack
17. AC power cord inlet
18. Security bar
19. Quick-release adjuster foot
20. Ceiling mount holes
21. Video input jack
22. Kensington anti-theft lock slot

Controls and functions

Projector

I. Focus ring

Adjusts the focus of the projected image. See "Fine-tuning the image size and clarity" on page 27 for details.

2. Zoom ring

Adjusts the size of the image. See "Fine-tuning the image size and clarity" on page 27 for details.

3. TEMP(temperature) warning light

Lights up red if the projector's temperature becomes too high. See "Indicators" on page 62 for details.

4. MENU/EXIT

Turns on the On-Screen Display (OSD) menu. Goes back to previous OSD menu, exits and saves menu settings.

5. POWER indicator light

Lights up or flashes when the projector is under operation. See "Indicators" on page 62 for detail.

6. POWER

Toggles the projector between standby mode and on. See "Starting up the projector" on page 24 and "Shutting down the projector" on page 45 for details.

7. Volume /Arrow keys (/ Left,

/Right)

Adjusts the sound level.

When the On-Screen Display (OSD) menu is activated, the #7 and #9 keys are used as directional arrows to select the desired menu items and to make adjustments. See "Using the menus" on page 28 for details.

8. ECO BLANK

Press the ECO BLANK button to turn off the image for a period of time with 70% light source power saving. Press again to restore the image. See "Hiding the image" on page 41 for details.

9. Keystone/Arrow keys (/ U _n ,

▼ Down)

Manually corrects distorted images resulting from an angled projection. See "Correcting keystone" on page 26 for details.

10. LIGHT indicator light

Indicates the status of the light. Lights up or flashes when the light has developed a problem. See "Indicators" on page 62 for details.

II. AUTO

Automatically determines the best picture timings for the displayed image. See "Fine-tuning the image size and clarity" on page 27 for details.

12. SOURCE

Displays the source selection bar. See "Switching input signal" on page 32 for details.

13. MODE/ENTER

Selects an available picture setup mode. See "Selecting a picture mode" on page 35 for details. Activates the selected On-Screen Display (OSD) menu item. See "Using the menus" on page 28 for details.

Ceiling mounting the projector

We want you to have a pleasant experience using your BenQ projector, so we need to bring this safety matter to your attention to prevent possible damage to person and property.

If you intend to mount your projector on the ceiling, we strongly recommend that you use a proper fitting BenQ projector ceiling mount kit and that you ensure it is securely and safely installed.

If you use a non-BenQ brand projector ceiling mount kit, there is a safety risk that the projector may fall from the ceiling due to an improper attachment through the use of the wrong gauge or length screws.

You can purchase a BenQ projector ceiling mount kit from the place you purchased your BenQ projector. BenQ recommends that you also purchase a separate Kensington lock compatible security cable and attach it securely to both the Kensington lock slot on the projector and the base of the ceiling mount bracket. This will perform the secondary role of restraining the projector should its attachment to the mounting bracket become loose.

Remote control

graph TD
    A["Info"] --> B["Menu Exit"]
    B --> C["Mode Enter"]
    C --> D["Auto"]
    D --> E["Source"]
    E --> F["Smart Eco"]
    F --> G["+ Volume"]
    G --> H["Aspect"]
    H --> I["Digital Zoom"]
    I --> J["Up Page"]
    J --> K["Down"]
    K --> L["Mute"]
    L --> M["Freeze"]
    M --> N["Quick Install"]
    N --> O["3D Settings"]
    O --> P["Tacking Template"]
    P --> Q["Set up"]
    Q --> R["Timer"]
    R --> S["On"]
    S --> T["CC"]
    T --> U["Digital Zoom"]
    U --> V["Digital Zoom"]
    V --> W["On"]
    W --> X["On"]
    X --> Y["On"]
    Y --> Z["On"]
    Z --> AA["On"]
    AA --> AB["On"]
    AB --> AC["On"]
    AC --> AD["On"]
    AD --> AE["On"]
    AE --> AF["On"]
    AF --> AG["On"]
    AG --> AH["On"]
    AH --> AI["On"]
    AI --> AJ["On"]
    AJ --> AK["On"]
    AK --> AL["On"]
    AL --> AM["On"]
    AM --> AN["On"]
    AN --> AO["On"]
    AO --> AP["On"]
    AP --> AQ["On"]
    AQ --> AR["On"]
    AR --> AS["On"]
    AS --> AT["On"]
    AT --> AU["On"]
    AU --> AV["On"]

1. Info

Showing the status information of the projector.

2. Menu/Exit

Turns on the On-Screen Display (OSD) menu. Goes back to previous OSD menu, exits and saves menu settings.

See "Using the menus" on page 28 for details.

3. Left Right

When the On-Screen Display (OSD) menu is activated, the #3 and #12 keys are used as directional arrows to select the desired menu items and to make adjustments. See "Using the menus" on page 28 for details.

4. Mode/Enter

Selects an available picture setup mode. See "Selecting a picture mode" on page 35 for details.

Activates the selected On-Screen Display (OSD) menu item. See "Using the menus" on page 28 for details.

5. Eco Blank

Press the Eco Blank button to turn off the image for a period of time with 70% light source power saving. Press again to restore the image. See "Hiding the image" on page 41 for details.

6. SmartEco

Displays the light source mode selection bar(Normal/Economic/SmartEco).

7. Aspect

Selects the display aspect ratio. See "About the aspect ratio" on page 34 for details.

8. Digital Zoom keys (+, -)

Magnifies or reduces the projected picture size. See "Magnifying and searching for details" on page 33 for details.

9. Timer On

Activates or displays an on-screen timer based on your own timer setting. See "Setting the presentation timer" on page 39 for details.

10. Timer Setup

Enters presentation timer setting directly. See "Setting the presentation timer" on page 39 for details.

II. Power

Toggles the projector between standby mode and on. See "Starting up the projector" on page 24 and "Shutting down the projector" on page 45 for details.

12. Keystone/Arrow keys (/ U _p , ▲

Manually corrects distorted images resulting from an angled projection. See "Correcting keystone" on page 26 for details.

13. Auto

Automatically determines the best picture timings for the displayed image. See "Fine-tuning the image size and clarity" on page 27 for details.

14. Source

Displays the source selection bar. See "Switching input signal" on page 32 for details.

15. Volume +/-

Adjusts the sound level. See "Adjusting the sound" on page 42 for details.

16. Page Up/Down

Page up/down arrows when connected through USB to a PC. See "Remote paging operation" on page 40 for details.

17. Mute

Toggles projector audio between on and off.

18. Freeze

Freezes the projected image. See "Freezing the image" on page 41 for details.

19. CC

Display the video term description on screen which is provided for hard-of-hearing viewers.

20. Quick Install

A menu shortcut that includes Test Pattern, Projector Installation and Keystone.

21. Teaching Template

Displays the selectable bar for teachers choosing the template as his/her suitable teaching background. See "Use Teaching Template" on page 43 for details.

22. 3D setting

Activates the 3D On-Screen Display (OSD) menu item.

Infra-Red (IR) remote control sensor is located on the front of the projector. The remote control must be held at an angle within 30 degrees perpendicular to the projector's IR remote control sensor to function correctly. The straight-line distance between the remote control and the sensor should not exceed 8 meters (\~26 feet).

Make sure that there are no obstacles between the remote control and the IR sensor on the projector that might obstruct the infra-red beam.

- Operating the projector from the front

Replacing the remote control battery

I. To open the battery cover, turn the remote control over to view its back, push on the finger grip on the cover and slide it up in the direction of the arrow as illustrated. The cover will slide off.
2. Remove any existing batteries (if necessary) and install two AAA batteries observing the battery polarities as indicated in the base of the battery compartment. Positive (+) goes to positive and negative (-) goes to negative.
3. Refit the cover by aligning it with the base and sliding it back down into position. Stop when it clicks into place.

Diagram of a battery inside a casing with an arrow indicating direction (no text or symbols)

Diagram of a battery pack with two batteries and one inside, showing charge distribution (no text or labels)

• Avoid excessive heat and humidity.
• There may be battery damage if the battery is incorrectly replaced.
• Replace only with the same or equivalent type recommended by the battery manufacturer.
• Dispose of the used battery according to the battery manufacturer's instructions.
• Never throw a battery into a fire. There may be danger of an explosion.
• If the battery is dead or if you will not be using the remote control for a long time, remove the battery to prevent damage to the remote control from possible battery leakage.

Positioning your projector

Choosing a location

Your room layout or personal preference will dictate which installation location you select. Take into consideration the size and position of your screen, the location of a suitable power outlet, as well as the location and distance between the projector and the rest of your equipment.

Your projector is designed to be installed in one of four possible installation locations:

I. Front Table

Select this location with the projector placed near the floor in front of the screen. This is the most common way to position the projector for quick setup and portability.

2. Front Ceiling

Select this location with the projector suspended upside-down from the ceiling in front of the screen.

Purchase the BenQ Projector Ceiling Mounting Kit from your dealer to mount your projector on the ceiling.

Set Front Ceiling in the SYSTEM SETUP: Basic > Projector Installation menu after you turn the projector on.

3. Rear Table

Select this location with the projector placed near the floor behind the screen.

Note that a special rear projection screen is required.

Set Rear Table in the SYSTEM SETUP: Basic > Projector Installation menu after you turn the projector on.

4. Rear Ceiling

Select this location with the projector suspended upside-down from the ceiling behind the screen.

Note that a special rear projection screen and the BenQ Projector Ceiling Mounting Kit are required for this installation location.

Simple line drawing of a person standing beside a table with a computer, connected by lines to a pole (no text or symbols)

Simple line drawing of a person silhouette facing a vehicle with extended arm and wires (no text or symbols)

Simple line drawing of a person observing a small object from a table, with a human silhouette nearby (no text or symbols)

Simple line drawing of a mechanical device connected to a vertical pole, with a human silhouette nearby (no text or symbols)

Set Rear Ceiling in the SYSTEM SETUP: Basic > Projector Installation menu after you turn the projector on.

You can also use Quick Install key on the remote control to select projectors location.

Obtaining a preferred projected image size

The distance from the projector lens to the screen, the zoom setting (if available), and the video format each factors in the projected image size.

Projection dimensions

Refer to "Dimensions" on page 65 for the center of lens dimensions of this projector before calculating the appropriate position.

LX20

The screen aspect ratio is 4:3 and the projected picture is 4:3

Screen size Projection distance (mm)							Vertical offset(mm)
Diagonal		W(mm)	H(mm)	Min distance(maxzoom)	Average	Max distance(minzoom)
Inch mm
30 762	610 457	1092 13	95 1697	69
40 101	6 813 61	0 1468	871 2274	91
50 127	0 1016 7	62 1844	2348 2851		114
60 152	4 1219 9	14 2220	2824 3428		137
80 203	2 1626	1219	2972	3777 4583		183
100 25	40 2032	1524	3724	4731 5737		229
120 30	48 2438	1829	4476	5684 6891		274
150 38	10 3048	2286	5604	7113 8623		343
200	5080	4064	3048	7484	9496	11509	457
220	5588	4470	3353	8235	10449	12664	503
250	6350	5080	3810	9363	11879	14395	572
300	7620	6096	4572	11243	14262	17281	686

For example, if you are using a 100-inch screen, the average projection distance is 4731 mm and with a vertical offset of 229 mm.

If your measured projection distance is 6.0 m (6000 mm), the closest match in the "Projection distance (mm)" column is 5684 mm. Looking across this row shows that a 120" (about 3.0 m) screen is required.

LW21

The screen aspect ratio is 16:10 and the projected picture is 16:10

Screen size Projection distance (mm)							Vertical offset (mm)
Diagonal		W (mm)	H (mm)	Min distance (max. zoom)	Average	Max distance (min. zoom)
Inch mm
30 762	646 404	921 117	8 1434 50
40 101	6 862 538	1240 1582	1923 67
50 1270	1077 673	1559	1986 2412 84
60 1524	1292 808	1878	2390 2901	101
80	2032	1723	1077	2515	3198	3880	135
100	2540	2154	1346	3153	4006	4858	168
120	3048	2585	1615	3791	4814	5837	202
150	3810	3231	2019	4747	6026	7304	252
200	5080	4308	2692	6341	8046	9750	337
220	5588	4739	2962	6979	8854	10729	370
250	6350	5385	3365	7935	10066	12196	421
300	7620	6462	4039	9529	12086	14642	505

For example, if you are using a 120-inch screen, the average projection distance is 4814 mm and with a vertical offset of 202 mm.

If your measured projection distance is 6.0 m (6000 mm), the closest match in the "Projection distance (mm)" column is 6026 mm. Looking across this row shows that a 150" (about 3.8 m) screen is required.

All measurements are approximate and may vary from the actual sizes. BenQ recommends that if you intend to permanently install the projector, you should physically test the projection size and distance using the actual projector in situ before you permanently install it, so as to make allowance for this projector's optical characteristics. This will help you determine the exact mounting position so that it best suits your installation location.

Connection

When connecting a signal source to the projector, be sure to:

I. Turn all equipment off before making any connections.
2. Use the correct signal cables for each source.
3. Ensure the cables are firmly inserted.

• In the connections shown below, some cables may not be included with the projector (see "Shipping contents" on page 8). They are commercially available from electronics stores.
• For detailed connection methods, see pages 19-23.
• For the combination of an active audio in source, see the marks in the illustration.

graph TD
    A["Computer"] --> B["2"]
    A --> C["3"]
    A --> D["1"]
    A --> E["2"]
    A --> F["4"]
    G["Server"] --> H["5"]
    G --> I["6"]
    G --> J["7"]
    G --> K["8"]
    L["Hardware"] --> M["1"]
    L --> N["2"]
    L --> O["3"]
    L --> P["4"]
    L --> Q["5"]
    L --> R["6"]
    L --> S["7"]
    L --> T["8"]
    U["Computer"] --> V["1"]
    U --> W["2"]
    U --> X["3"]
    U --> Y["4"]
    U --> Z["5"]
    U --> AA["6"]
    U --> AB["7"]
    U --> AC["8"]

1. Audio Cable 5. Component Video to VGA (DSub)adapter cable
2. VGA cable 6. S-Video cable
3. VGA to DVI-A cable 7. Video cable
4. USB Cable 8. HDMI cable

Connecting a computer or monitor

Connecting a computer

The projector can connect to both IBM® compatibles and Macintosh® computers. A Mac adapter is needed if you are connecting legacy version Macintosh computers.

To connect the projector to a notebook or desktop computer:

I. Take the supplied VGA cable and connect one end to the D-Sub output socket of the computer.
2. Connect the other end of the VGA cable to the COMPUTER IN-1 or COMPUTER IN-2 signal input jack on the projector.
3. If you wish to make use of the projector speaker(s) in your presentations, take a suitable audio cable and connect one end of the cable to the audio output jack of the computer, and the other end to the AUDIO IN-I or AUDIO IN-2 jack of the projector. When you connect audio output signal from a computer, please balance out the volume control bar to obtain an optimal sound effects.

Many notebooks do not turn on their external video ports when connected to a projector. Usually a key combo like FN + F3 or CRT/LCD key turns the external display on/off. Locate a function key labeled CRT/LCD or a function key with a monitor symbol on the notebook. Press FN and the labeled function key simultaneously. Refer to your notebook's documentation to find your notebook's key combination.

Connecting a monitor

If you want to view your presentation close-up on a monitor as well as on the screen, you can connect the MONITOR-OUT signal output jack on the projector to an external monitor following the instructions below:

To connect the projector to a monitor:

I. Connect the projector to a computer as described in "Connecting a computer" on page 19.
2. Take a suitable VGA cable (only one supplied) and connect one end of the cable to the D-Sub input jack of the video monitor.
Or if your monitor is equipped with a DVI input jack, take a VGA to DVI-A cable and connect the DVI end of the cable to the DVI input jack of the video monitor.
3. Connect the other end of the cable to the MONITOR-OUT jack on the projector.

- The output signal for MONITOR-OUT jack only works when the input signal comes from COMPUTER IN-1 or COMPUTER IN-2 jack. When the projector is powered on, the output signal from MONITOR-OUT jack varies depending on the input signal from COMPUTER IN-1 or COMPUTER IN-2 jack.

- If you wish to use this connection method when the projector is in standby mode, make sure the Monitor Out function is turned on in the SYSTEM SETUP: Advanced > Standby Settings menu. See "Standby Settings" on page 57 for details.

Connecting Video source devices

You need only connect the projector to a Video source device using just one of the above connecting methods, however each provides a different level of video quality. The method you choose will most likely depend upon the availability of matching terminals on both the projector and the Video source device as described below:

Terminal name	Terminal appearance	Reference Picture quality
HDMI	HDMI "Connecting a HDMI source device" on	Best
Component Video	COMPUTER	"Connecting a Component Video source device" on page 22	Better
S-Video	S-VIDEO "Connecting an S-Video/composite source device" on	Good
Video	VIDEO

Connecting a HDMI source device

The projector provides a HDMI input jack that allows you to connect it to a HDMI source device like a DVD player, a DTV tuner or a display.

HDMI (High-Definition Multimedia Interface) supports uncompressed video data transmission between compatible devices like DTV tuners, DVD players and displays over a single cable. It provides pure digital viewing and listening experience.

Examine your Video source device to determine if it has a set of unused HDMI output jacks available:

• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.

To connect the projector to a HDMI source device:

I. Take a HDMI cable and connect one end to the HDMI output jack of the HDMI source device. Connect the other end of the cable to the HDMI signal input jack on the projector. Once connected, the audio can be controlled by the projector On-Screen Display (OSD) menus. See "Audio Settings" on page 56 for details..

1. Connect the other end of the HDMI cable to the HDMI jack on the projector.

- If the selected video image is not displayed after the projector is turned on and the correct video source has been selected, check that the Video source device is turned on and operating correctly. Also check that the signal cables have been connected correctly.

- In the unlikely event that you connect the projector to a DVD player via the projector's HDMI input and the projected picture displays wrong colors, please change the color space to YUV. See "Changing Color Space" on page 32 for details.

Connecting a Component Video source device

Examine your Video source device to determine if it has a set of unused Component Video output jacks available:

• If so, you can continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.

To connect the projector to a Component Video source device:

I. Take a Component Video to VGA (D-Sub) adaptor cable and connect the end with 3 RCA type connectors to the Component Video output jacks of the Video source device. Match the color of the plugs to the color of the jacks; green to green, blue to blue, and red to red.

1. Connect the other end of the Component Video to VGA (D-Sub) adaptor cable (with a D-Sub type connector) to the COMPUTER IN-1 or COMPUTER IN-2 jack on the projector.
2. If you wish to make use of the projector speaker(s) in your presentations, take a suitable audio cable and connect one end of the cable to the audio output jack of the device, and the other end to the AUDIO IN-1 or AUDIO IN-2 jack of the projector.

- If the selected video image is not displayed after the projector is turned on and the correct video source has been selected, check that the Video source device is turned on and operating correctly. Also check that the signal cables have been connected correctly.

Connecting an S-Video/composite source device

Examine your Video source device to determine if it has an unused S-Video/composite output jack available:

• If it has both jacks, use the S-Video output jack for connection as the S-Video terminal provides better picture quality than the Video terminal.
• If it has either of the output jack, you can also continue with this procedure.
• If not, you will need to reassess which method you can use to connect to the device.

To connect the projector to an S-Video/Video source device:

I. Take an S-Video/Video cable and connect one end to the S-Video/Video output jack of the Video source device.
2. Connect the other end of the S-Video/Video cable to the S-Video/Video jack on the projector.
3. If you wish to make use of the projector speaker(s) in your presentations, take a suitable audio cable and connect one end of the cable to the audio output jack of the device, and the other end to the AUDIO IN-1 or AUDIO IN-2 jack of the projector.
- If the selected video image is not displayed after the projector is turned on and the correct video source has been selected, check that the Video source device is turned on and operating correctly. Also check that the signal cables have been connected correctly.

Operation

Starting up the projector

I. Plug the power cord into the projector and into a power outlet. Turn on the power outlet switch (where fitted). Check that the POWER indicator light on the projector lights orange after power has been applied.

Diagram showing a cable being inserted into an electronic device, with arrows indicating direction of connection (no text or symbols present)

- Please use the original accessories (e.g. power cable) only with the device to avoid possible dangers such as electric shock and fire.

• If Direct Power On function is activated in the SYSTEM SETUP: Basic > Operation Settings menu, the projector will turn on automatically after the power cord has been connected and power has been applied. See "Direct Power On" on page 55 for details.

• If Signal Power On function is activated in the SYSTEM SETUP: Basic > Operation Settings menu, the projector will turn on automatically when VGA signal is detected. See "Signal Power On" on page 55 for details.

• Press Ⓐ POWER on the projector or remote control to start the projector. The POWER indicator light flashes and stays green when the projector is on. (If necessary) Rotate the focus ring to adjust the image clearness.

1. If the projector is activated for the first time, select your OSD language following the on-screen instructions.
2. If you are prompted for a password, press the arrow keys to enter a six digit password. See "Utilizing the password function" on page 29 for details.
3. Switch all of the connected equipment on.
4. The projector will start to search for input signals. The current input signal being scanned displays in the screen. If the projector doesn't detect a valid signal, the message 'No Signal' will continue displaying until an input signal is found.

You can also press Source on the projector or remote control to select your desired input signal. See "Switching input signal" on page 32 for details.

- If no signal is detected for 3 minutes, the projector automatically enters ECO BLANK mode.

Adjusting the projected image

Adjusting the projection angle

The projector is equipped with I quick-release adjuster foot. These adjusters change the image height and projection angle. To adjust the projector:

I. Press the quick-release button and lift the front of the projector. Once the image is positioned where you want it, release the quick-release button to lock the foot in position.

To retract the foot, hold up the projector while pressing the quick-release button, then slowly lower the projector.

Line drawing of a projector with a hand inserting a button (no text or symbols)

If the projector is not placed on a flat surface or the screen and the projector are not perpendicular to each other, the projected image becomes trapezoidal. To correct this situation, see "Correcting keystone" on page 26 for details.

- Do not look into the lens while the light source is on. The strong light from the light source may cause damage to your eyes.

- Be careful when you press the adjuster button as it is close to the exhaust vent where hot air comes from.

Auto-adjusting the image

In some cases, you may need to optimize the picture quality. To do this, press AUTO on the projector or remote control. Within 3 seconds, the built-in Intelligent Auto Adjustment function will re-adjust the values of Frequency and Clock to provide the best picture quality.

- The screen will be blank while Auto is functioning.

- This function is only available when PC signal (analog RGB) is selected.

Correcting keystone

Keystoning refers to the situation where the projected image is noticeably wider at either the top or bottom. It occurs when the projector is not perpendicular to the screen.

To correct this, besides adjusting the height of the projector, you will need to manually correct it following one of these steps.

• Using the projector or remote control

Press on the projector or remote control to display the Keystone correction page.

Press to correct keystoning at the top of the image. Press to correct keystoning at the bottom of the image.

1. Press ▼ to select Keystone and press Press ▲/▼. Press MODE/ENTER. The Keystone correction page displays.

2. Press to correct keystoning at the top of the image or press to correct keystoning at the bottom of the image.

• Using the Quick Install key

I. Press Quick Install on the remote control.

1. Press ▼ to select Keystone and press MODE/ENTER.

2. Press to correct keystoning at the top of the image or press to correct keystoning at the bottom of the image.

Fine-tuning the image size and clarity

I. Adjust the projected image to the size that you need using the zoom ring.

1. Then sharpen the image by rotating the focus ring.

graph TD
    A["Aden Pyramid"] --> B["Structural Change"]
    B --> C["Structural Change with Arches"]
    C --> D["Structural Change with Arches"]
    D --> E["Structural Change with Arches"]
    E --> F["Structural Change with Arches"]

Use build-in test pattern

You can adjust the image shape and focus status by observing the input signal content, or using the test pattern build-in OSD manual from OSD or remote control for better observe the shape changed.

• Using the Quick Install key Press Quick Install on the remote control, go to the Test Pattern and select On.

• Using the OSD menu

Open the OSD menu and go to the SYSTEM SETUP: Advanced > Test Pattern > On. Press MODE/ENTER. The Test Pattern displays.

Blank grid paper with uniform squares (no text or symbols)

Using the menus

The projector is equipped with On-Screen Display (OSD) menus for making various adjustments and settings.

Below is the overview of the OSD menu.

The following example describes how to set the OSD menu.

I. Press MENU/EXIT on the projector or remote control to turn the OSD menu on.

1. Use / to highlight the SYSTEM SETUP: Basic menu.

1. Press ▼ to highlight Background Color and press to ◀ select a background color.

1. Press MENU/EXIT twice* on the projector or remote control to leave and save the settings.

*The first press leads you back to the main menu and the second press closes the OSD menu.

Securing the projector

Using a security cable lock

The projector has to be installed in a safe place to prevent theft. Otherwise, purchase a lock, such as the Kensington lock, to secure the projector. You can locate a Kensington lock slot on the rear side of the projector. See item 23 on page 9 for details.

A Kensington security cable lock is usually a combination of key(s) and the lock. Refer to the lock's documentation for finding out how to use it.

Utilizing the password function

For security purposes and to help prevent unauthorized use, the projector includes an option for setting up password security. The password can be set through the On-Screen Display (OSD) menu.

WARNING: You will be inconvenienced if you activate the power-on lock functionality and subsequently forget the password. Print out this manual (if necessary) and write the password you used in this manual, and keep the manual in a safe place for later recall.

Setting a password

Once a password has been set, the projector cannot be used unless the correct password is entered every time the projector is started.

I. Open the OSD menu and go to the SYSTEM SETUP: Advanced > Security Settings menu. Press MODE/ENTER. The Security Settings page displays.
2. Select Change Security and press MODE/ENTER.
3. As pictured to the right, the four arrow keys

(▲, ▶) respectively represent 4 digits (1, 2, 3, 4). According to the password you desire to set, press the arrow keys to enter six digits for the password. The default password is 1, 1, 1, 1, 1, 1.

1. Confirm the new password by re-entering the new password.

Once the password is set, the OSD menu returns to Change Security page with highlight in the row of Power on Lock. Select On by pressing 🔊.

IMPORTANT: The digits being input will display as asterisks on-screen. Write your selected password down here in this manual in advance or right after the password is entered so that it is available to you should you ever forget it.

Password: ____ ____ ____

Keep this manual in a safe place.

1. To leave the OSD menu, press MENU/EXIT.

If you forget the password

If the password function is activated, you will be asked to enter the six-digit password every time you turn on the projector. If you enter the wrong password, the password error message as pictured to the right displays lasting for three seconds, and the message

'INPUT PASSWORD' follows. You can retry by entering another six-digit password, or if you did not

record the password in this manual, and you absolutely do not remember it, you can use the password recall procedure. See "Entering the password recall procedure" on page 30 for details.

If you enter an incorrect password 5 times in succession, the projector will automatically shut down in a short time.

Entering the password recall procedure

I. Press and hold Auto on the projector or remote control for 3 seconds. The projector will display a coded number on the screen.
2. Write down the number and turn off your projector.
3. Seek help from the local BenQ service center to decode the number. You may be required to provide proof of purchase documentation to verify that you are an authorized user of the projector.

Changing the password

I. Open the OSD menu and go to the SYSTEM SETUP: Advanced > Security Settings.
2. Select Change password and press MODE/ENTER. The message 'INPUT CURRENT PASSWORD' displays.
3. Enter the old password.

• If the password is correct, another message 'INPUT NEW PASSWORD' displays.

• If the password is incorrect, the password error message displays lasting for three seconds, and the message 'INPUT CURRENT PASSWORD' displays for your retry. You can press MENU/EXIT to cancel the change or try another password.

• Enter a new password.

IMPORTANT: The digits being input will display as asterisks on-screen. Write your selected password down here in this manual in advance or right after the password is entered so that it is available to you should you ever forget it.

Password: ____ ____ ____

Keep this manual in a safe place.

1. Confirm the new password by re-entering the new password.

2. You have successfully assigned a new password to the projector. Remember to enter the new password next time the projector is started.

Disabling the password function

To disable password protection, go back to the SYSTEM SETUP: Advanced > Security Settings > Change Security menu after opening the OSD menu system. The message 'INPUT PASSWORD' displays. Enter the current password.

• If the password is correct, the OSD menu returns to the Change Security page with 'On' shown in the row of Power on Lock. Select 'Off' by pressing ◀/▶. You will not have to enter the password next time you turn on the projector.
• If the password is incorrect, the password error message displays lasting for three seconds, and the message 'INPUT PASSWORD' displays for your retry. You can press MENU/EXIT to cancel the change or try another password.

Though the password function is disabled, you need to keep the old password in hand should you ever need to re-activate the password function by entering the old password.

Switching input signal

The projector can be connected to multiple devices at the same time. However, it can only display one full screen at a time. When starting up, the projector automatically searches for the available signals.

Be sure the Quick Auto Search function in the SOURCE menu is On (which is the default of this projector) if you want the projector to automatically search for the signals.

You can also manually cycle through the available input signals.

I. Press SOURCE on the projector or remote control. A source selection bar displays.
2. Press / until your desired signal is selected and press MODE/ENTER. Once detected, the selected source information will display on the screen for seconds. If there is multiple equipment connected to the projector, repeat steps 1-2 to search for another signal.

- The brightness level of the projected image will change accordingly when you switch between different input signals. Data (graphic) "PC"

presentations using mostly static images are generally brighter than "Video" using mostly moving images (movies).

• The input signal type effects the options available for the Picture Mode. See "Selecting a picture mode" on page 35 for details.
• The native display resolution of LX20 is in a 4:3 aspect ratio while the native display resolution of LW21 is in a 16:10 aspect ratio. For best display picture results, you should select and use an input signal which outputs at this resolution. Any other resolutions will be scaled by the projector depending upon the 'aspect ratio' setting, which may cause some image distortion or loss of picture clarity. See "Selecting the aspect ratio" on page 33 for details.

Changing Color Space

In the unlikely event that you connect the projector to a DVD player via the projector's HDMI input and the projected picture displays wrong colors, please change the color space to YUV.

I. Press MENU/EXIT and then press ◀ /▶ until the SOURCE menu is highlighted.
2. Press ▼ to select Color Space Conversion and press ◀/▶ to select a suitable color space.

This function is only available when the HDMI input port is in use.

Magnifying and searching for details

If you need to find the details on the projected picture, magnify the picture. Use the direction arrow keys for navigating the picture.

• Using the remote control

I. Press Digital Zoom +/- to display the Zoom bar.

1. Press Digital Zoom + to magnify the center of the picture. Press the key repeatedly until the picture size is suitable for your need.

2. Press Mode/Enter to switch to the paning mode and use the directional arrows (▲, ▼) of the projector or remote control to navigate the picture.

3. To restore the picture to its original size, press AUTO. You can also press Digital Zoom -. When the key is pressed again, the picture is further reduced until it is restored to the original size.

• Using the OSD menu

I. Press MENU/EXIT and then press ◀ /▶ until the DISPLAY menu is highlighted.

1. Press ▼ to select Digital Zoom and press MODE/ENTER. The Zoom bar displays.

2. Repeat steps 2-4 in the section of "Using the remote control" above. Or if you are using the projector control panel, continue to the following steps.

3. Press on the projector repeatedly to magnify the picture to a desired size.

4. To navigate the picture, press MODE/ENTER to switch to the paning mode and press the directional arrows (▲, ▼) to navigate the picture.

5. Use the directional arrows ( , ,▲ ) on the projector or remote control to navigate the picture.

6. To reduce size of the picture, press MODE/ENTER to switch back to the zoom in/out functionality, and press AUTO to restore the picture to its original size. You can also press repeatedly until it is restored to the original size.

The picture can only be navigated after the picture is magnified. You can further magnify the picture while searching for details.

Selecting the aspect ratio

The 'aspect ratio' is the ratio of the image width to the image height.

With the advent of digital signal processing, digital display devices like this projector can dynamically stretch and scale the image output to a different aspect than that of the image input signal.

To change the projected image ratio (no matter what aspect the source is):

• Using the remote control

I. Press Aspect to show the current setting.

1. Press Aspect repeatedly to select an aspect ratio to suit the format of the video signal and your display requirements.

• Using the OSD menu

I. Press MENU/EXIT and then press ◀ /▶ until the DISPLAY menu is highlighted.

1. Press ▼ to select Aspect Ratio.

2. Press / to select an aspect ratio to suit the format of the video signal and your display requirements.

About the aspect ratio

1. Auto: Scales an image proportionally to fit the projector's native resolution in its horizontal or vertical width. This is suitable for the incoming image which is neither in 4:3 nor 16:9 and you want to make most use of the screen without altering the image's aspect ratio.

2. Real: The image is projected as its original resolution, and resized to fit within the display area. For input signals with lower resolutions, the projected image will display smaller than if resized to full screen. You could adjust the zoom setting or move the projector towards the screen to increase the image size if necessary. You may also need to refocus the projector after making these adjustments.

3. 4:3: Scales an image so that it is displayed in the center of the screen with a 4:3 aspect ratio. This is most suitable for 4:3 images like computer monitors, standard definition TV and 4:3 aspect DVD movies, as it displays them without aspect alteration.

4. 16:9: Scales an image so that it is displayed in the center of the screen with a 16:9 aspect ratio. This is most suitable for images which are already in a 16:9 aspect, like high definition TV, as it displays them without aspect alteration.

5. 16:10: Scales an image so that it is displayed in the center of the screen with a 16:10 aspect ratio. This is most suitable for images which are already in a 16:10 aspect, like high definition TV, as it displays them with out aspect alteration.

Optimizing the image

Selecting a picture mode

The projector is preset with several predefined picture modes so that you can choose one to suit your operating environment and input signal picture type.

To select an operation mode that suits your need, you can follow one of the following steps.

- Press Mode/Enter on the remote control or MODE/ENTER on the projector repeatedly until your desired mode is selected.

- Go to the PICTURE > Picture Mode menu and press ◀/▶ to select a desired mode.

The picture modes are listed below.

1. Dynamic mode: Maximizes the brightness of the projected image. This mode is suitable for environments where extra-high brightness is required, such as using the projector in well lit rooms.
2. Presentation mode (Default): Is designed for presentations. The brightness is emphasized in this mode.
3. RGB mode: Maximizes the purity of RGB colors to provide true-to-life images regardless of brightness setting. It is most suitable for viewing photos taken with an sRGB compatible and properly calibrated camera, and for viewing PC graphic and drawing applications such as AutoCAD.
4. Cinema mode: Is appropriate for playing colorful movies, video clips from digital cameras or DVs through the PC input for best viewing in a blackened (little light) environment.
5. User I/User 2 mode: Recalls the settings customized based on the current available picture modes. See "Setting the User I/User 2 mode" on page 35 for details.

Setting the User I/User 2 mode

There are two user-definable modes if the current available picture modes are not suitable for your need. You can use one of the picture modes (except the User I/User 2) as a starting point and customize the settings.

I. Press MENU/EXIT to open the On-Screen Display (OSD) menu.
2. Go to the PICTURE > Picture Mode menu.
3. Press / to select User 1 to User 2.
4. Press ▼ to select Reference Mode.

This function is only available when User 1 or User 2 mode is selected up in the Picture Mode sub-menu item.

1. Press / to select a picture mode that is closest to your need.

2. Press ▼ to select a sub-menu item to be changed and adjust the value with ◀/▶. See "Fine-tuning the image quality in user modes" below for details.

3. The confirmation message 'Setting Saved' displays.

Using Wall Color

In the situation where you are projecting onto a colored surface such as a painted wall which may not be white, the Wall Color feature can help correct the projected picture's color to prevent possible color difference between the source and projected pictures.

To use this function, go to the DISPLAY > Wall Color menu and press ◀/▶ to select a color which is the closest to the color of the projection surface. There are several precalibrated colors to choose from: Light Yellow, Pink, Light Green, Blue, and Blackboard.

Fine-tuning the image quality in user modes

According to the detected signal type and selected picture mode, some of the below functions may not be available. Based on your needs, you can make adjustments to these functions by selecting them and pressing ◀ o▶the projector or remote control.

Adjusting Brightness

The higher the value, the brighter the image. And the lower the setting, the darker the image. Adjust this control so the black areas of the image appear just as black and that detail in the dark areas is visible.

Adjusting Contrast

The higher the value, the greater the contrast. Use this to set the peak white level after you have previously adjusted the Brightness setting to suit your selected input and viewing environment.

Adjusting Color

Lower setting produces less saturated colors. If the setting is too high, colors on the image will be overpowering, which makes the image unrealistic.

Adjusting Tint

The higher the value, the more reddish the picture becomes. The lower the value, the more greenish the picture becomes.

Adjusting Sharpness

The higher the value, the sharper the picture becomes. The lower the value, the softer the picture becomes.

Adjusting Brilliant Color

This feature utilizes a new color-processing algorithm and system level enhancements to enable higher brightness while providing truer, more vibrant colors in picture. It enables a greater than 50% brightness increase in mid-tone images, which are common in video and natural scenes, so the projector reproduces images in realistic and true colors. If you prefer images with that quality, select On. If you don't need it, select Off.

When Off is selected, the Color Temperature function is not available.

Selecting a Color Temperature

The options available for color temperature* settings vary according to the signal type selected.

I. Cool: Makes images appear bluish white.
2. Normal: Maintains normal colorings for white.
3. Warm: Makes images appear reddish white.

*About color temperatures:

There are many different shades that are considered to be "white" for various purposes. One of the common methods of representing white color is known as the "color temperature". A white color with a low color temperature appears to be reddish white. A white color with a high color temperature appears to have more blue in it.

Setting a preferred color temperature

To set a preferred color temperature:

I. Select Color Temperature and select Warm, Normal or Cool by pressing ◀/▶ on the projector or remote control.

1. Press ▼ to select Color Temperature Fine Tuning and press MODE/ENTER. The Color Temperature Fine Tuning page displays.

2. Press / to select the item you want to change and adjust the values by pressing ◀/▶.

• R Gain/G Gain/B Gain: Adjusts the contrast levels of Red, Green, and Blue.
• R Offset/G Offset/B Offset: Adjusts the brightness levels of Red, Green, and Blue.

1. Press MENU/EXIT to exit and save the settings

3D Color Management

In most installation situations, color management will not be necessary, such as in classroom, meeting room, or lounge room situations where lights remain on, or where building external windows allow daylight into the room.

Only in permanent installations with controlled lighting levels such as boardrooms, lecture theaters, or home theaters, should color management be considered. Color management provides fine color control adjustment to allow for more accurate color reproduction, should you require it.

Proper color management can only be achieved under controlled and reproducible viewing conditions. You will need to use a colorimeter (color light meter), and provide a set of suitable source images to measure color reproduction. These tools are not provided with the projector, however, your projector supplier should be able to provide you with suitable guidance, or even an experienced professional installer.

The Color Management provides six sets (RGBCMY) of colors to be adjusted. When you select each color, you can independently adjust its range and saturation according to your preference.

If you have purchased a test disc which contains various color test patterns and can be used to test the color presentation on monitors, TVs, projectors, etc. You can project any image from the disc on the screen and enter the 3D Color Management menu to make adjustments.

To adjust the settings:

I. Go to the PICTURE menu and select 3D Color Management.
2. Press MODE/ENTER and the 3D Color Management page displays.
3. Select Primary Color and press ◀/▶ to select a color from among Red, Yellow, Green, Cyan, Blue, or Magenta.
4. Press ▼ to select Hue and press ◀/▶ to select its range. Increase in the range will include colors consisted of more proportions of its two adjacent colors.

Please refer to the illustration to the right for how the colors relate to each other. For example, if you select Red and set its range at 0, only pure red in the projected picture will be selected. Increasing its range will include red close to yellow and red close to magenta.

1. Press to select Saturation and adjust its values to your preference by pressing ▶. Every adjustment made will reflect to the image immediately.

For example, if you select Red and set its value at 0, only the saturation of pure red will be affected.

Saturation is the amount of that color in a video picture. Lower settings produce less saturated colors; a setting of "0" removes that color from the image entirely. If the saturation is too high, that color will be overpowering and unrealistic.

1. Press ▼ to select Gain and adjust its values to your preference by pressing ◀/▶. The contrast level of the primary color you select will be affected. Every adjustment made will reflect to the image immediately.

2. Repeat steps 3 to 6 for other color adjustments.

3. Make sure you have made all of the desired adjustments.

4. Press MENU/EXIT to exit and save the settings.

Resetting current or all picture modes

I. Go to the PICTURE menu and select Reset Picture Settings.

1. Press MODE/ENTER and press ▲/▼ to select Current or All.

• Current: returns current picture mode to the factory preset settings.
- All: returns all settings, except User I/User 2 in the PICTURE menu to the factory preset settings.

Setting the presentation timer

The presentation timer can indicate the presentation time on the screen to help you achieve better time management when giving presentations. Follow these steps to utilize this function:

1. Press Timer Set up on the remote control or go to the SYSTEM SETUP: Basic > Presentation Timer menu and press MODE/ENTER to display the Presentation Timer page.
2. Select Timer period and decide the timer period by pressing ⚠ The length of time can be set from 1 to 5 minutes in 1-minute increments and 5 to 240 minutes in 5-minute increments.
3. Press ▼ to select Timer display and choose if you want the timer to show up on the screen by pressing 🔊 ▶

Selection Description

Always Displays the timer on screen throughout the presentation time.

3 min/2 min/1 min Displays the timer on screen in the last 3/2/1 minute(s).

Never Hides the timer throughout the presentation time.

1. Press ▼ to select Timer position and set the timer position by pressing ◀/▶. Top-Left Bottom-Left Top-Right Bottom-Right
2. Press ▼ to select Timer counting direction and select your desired counting direction by pressing ◀ ▶.

Selection Description
Count Up	Increases from 0 to the preset time.
Count Down	Decrease from the preset time to 0.

1. Press ▼ to select Sound reminder and decide if you want to activate sound reminder by pressing ◀/▶. If you select On, a double beep sound will be heard at the last 30 seconds of counting down/up, and a triple beep sound will be produced when the timer is up.
2. To activate the presentation timer, press ▼ and press ◀/▶ to select On and press MODE/ENTER.
3. A confirmation message displays. Select Yes and press MODE/ENTER to confirm. The timer starts counting at the time the timer is on.

To cancel the timer, perform the following steps.

• Using the remote control.

Press Timer On and press ◀/▶ to select Yes and press MODE/ENTER.

- Using the OSD menu.

I. Go to the SYSTEM SETUP: Basic > Presentation Timer menu and press MODE/ENTER.

1. Press ▼ to select Off and press MODE/ENTER. A confirmation message displays.

2. Select Yes and press MODE/ENTER to confirm. You will see the message "Time is Up!" displaying on the screen.

How to use the Timer On key?

Timer On is a multi-functional key.

- If the presentation timer is off, pressing this key to activate the timer.

- If the timer is already on, pressing this key to continue or turn off the timer by following the on-screen instruction.

Remote paging operation

Connect the projector to your PC or notebook with a USB cable prior to using the paging function.

You can operate your display software program (on a connected PC) which responds to page up/down commands (like Microsoft PowerPoint) by pressing Page Up/Down on the remote control.

If remote paging function doesn't work, check if the USB connection is correctly made and the mouse driver on your computer is updated to the latest version.

Hiding the image

Press the Eco Blank button from projector or remote control to turn off the image for a period of time with up to 70% light source power saving. Press any key on the projector or remote control to restore the image.

Eco Blank wording appears at the screen while the image is hidden. When this function is activated with an audio input connected, the audio can still be heard.

- Save up to 70% of your light source power. Time to do your part in saving the planet.

The automatic switch to Eco Blank Mode after the projector is turned on for over three minutes without a display source, eliminating unnecessary energy waste and prolonging the life of the projector light source.

You can set the blank time in the SYSTEM SETUP: Basic > Operation Settings > Blank Timer menu to let the projector return the image automatically after a period of time when there is no action taken on the blank screen. The length of time can be set from 5 to 30 minutes in 5-minute increments.

- Do not block the projection lens from projecting as this could cause the blocking object to become heated.

- No matter Eco Blank Timer is activated or not, you can press any key (except the Up/Down key) on the projector or remote control to restore the picture.

Page

Freezing the image

Press Freeze on the remote control to freeze the image. The word 'FREEZE' will display on the screen. To release the function, press any key (except the Page Up/Down key) on the projector or remote control.

Even if an image is frozen on the screen, the pictures are running on the video or other device. If the connected devices have active audio output, you will still hear the audio even though the image is frozen on screen.

Operating in a high altitude environment

We recommend you use the High Altitude Mode when your environment is 1500 m – 3000 m above sea level, and ambient temperature is between 0°C–35°C. China region only applies at altitude up to 2000m.

Do not use the High Altitude Mode if your altitude is between 0 m and 1500 m and ambient temperature is between 0°C and 35°C. The projector will be over cooled, if you turn the mode on under such a condition.

To activate the High Altitude Mode:

I. Press MENU/EXIT and then press ◀ /▶ until the SYSTEM SETUP: Advanced menu is highlighted.
2. Press ▼ to select High Altitude Mode and press ◀/▶ to select On. A confirmation message displays.
3. Select Yes and press MODE/ENTER.

Operation under "High Altitude Mode" may cause a higher decibel operating noise level because of increased fan speed necessary to improve overall system cooling and performance.

If you use this projector under other extreme conditions excluding the above, it may display auto shut-down symptoms, which is designed to protect your projector from overheating. In cases like this, you should switch to High Altitude mode to solve these symptoms. However, this is not to state that this projector can operate under any and all harsh or extreme conditions.

Adjusting the sound

The sound adjustments made as below will have an effect on the projector speaker(s). Be sure you have made a correct connection to the projector audio input. See "Connection" on page 18 for how the audio input is connected.

Muting the sound

To temporarily turn off the sound, press Mute on the remote control, or:

I. Press MENU/EXIT and then press / until the SYSTEM SETUP: Advanced menu is highlighted.
2. Press ▼ to select Audio Settings and press MODE/ENTER. The Audio Settings page displays.
3. Select Mute and press ◀ /▶ to select On.

Adjusting the sound level

To adjust the sound level, press Volume +/- on the remote control, or:

I. Repeat steps 1-2 above.
2. Press ▼ to select Volume and press ◀/▶ to select a desired sound level.

Use Teaching Template

Making writing on the board easier for teachers, you can use build-in template by OSD or remote control.

Open the OSD menu and go to the DISPLAY > Teaching Template. Choose Blackboard/Whiteboard > Off/Letter Formation/Worksheet/Coordinate Chart. The Teaching Template displays.

Teaching Template	Whiteboard Blackboard
Letter Formation
Worksheet
Coordinate Chart

Select the light source mode

• Using the remote control.

Press SmartEco and press ▲ / ▼ to select Normal/Economic/SmartEco.

• Using the OSD menu

I. Press MENU/EXIT and then press / ◀ ▶ until the SYSTEM SETUP: Advanced menu is highlighted.

1. Press ▼ to select Light Source Settings and press MODE/ENTER. The Light Source Settings page displays.

1. Select Light Source Mode and press /

▶ to select Normal/Economic/SmartEco. The brightness vary from the different light source mode, see the description list in table below.

Light Source Mode Description
Normal	100% light source brightness.
Economic	Saves 25% light source power consumption.
SmartEco	Saves up to 70% light source power consumption depending on the content brightness level.

If the Economic/SmartEco is selected, the light output will be reduced and result in darker projected pictures.

Personalizing the projector menu display

The On-Screen Display (OSD) menus can be set according to your preferences. The following settings do not affect the projection settings, operation, or performance.

• Menu display time in the SYSTEM SETUP: Basic > Menu Settings menu sets the length of time the OSD will remain active after your last key press. The time length ranges from 5 to 30 seconds in 5-second increments. Use ⚠️ to select a suitable time frame.
• Menu position in the SYSTEM SETUP: Basic > Menu Settings menu sets the OSD position in five locations. Use 🔊 to select a preferred position.
• Reminder message in the SYSTEM SETUP: Basic > Menu Settings menu sets whether to display reminder messages on screen. Use 🔊 to select your desired setting.
• Language in the SYSTEM SETUP: Basic menu sets your familiar language for the OSD menus. Use Enter to select your language.
• Splash Screen in the SYSTEM SETUP: Basic menu sets a preferred logo screen to be displayed during projector start-up. Use 🔊 to select a screen.

Shutting down the projector

I. Press POWER and a confirmation message displays prompting you. If you don't respond in a few seconds, the message will disappear.
2. Press POWER a second time. The POWER indicator light flashes orange, the projection light source shuts down.

• To protect the light source, the projector will not respond to any commands during the cooling process.
3. Once the cooling process finishes, the POWER indicator light is a steady orange and fans stop.
4. Disconnect the power cord from the power putlet if the projector will not be used in an extended period of time.

• If the projector is not properly shut down, to protect the light source, when you attempt to re-start the projector, the fans will run for a few minutes to cool down. Press Power again to start the projector after the fans stop and the POWER indicator light turns orange.
  • Actual light source life may vary due to different environmental conditions and usage.

Diagram showing connections between an electrical outlet, a plug, and a cable with arrows indicating connection direction (no text or symbols present)

Menu operation

Menu system

Please note that the on-screen display (OSD) menus vary according to the signal type selected.

Main menu Sub-menu Options
	Wall Color		Off/Light Yellow/Pink/Light Green/Blue/Blackboard
	Aspect Ratio Auto/Real/4:3/16:9/16:10
	Keystone
	Position
	Phase
	H. Size
	Digital Zoom
I. DISPLAY	3D	3D Mode	Auto/Top Bottom/Frame Sequential/Frame Packing/Side by Side/Off
		3D Sync Invert Disable/Invert
		Save 3D Settings	3D Settings 1/3D Settings 2/3D Settings 3
		Apply 3D Settings	3D Settings 1/3D Settings 2/3D Settings 3/Off
	Teaching Template	Blackboard	Off/Letter Formation/Worksheet/Coordinate Chart
		Whiteboard	Off/Letter Formation/Worksheet/Coordinate Chart

	Picture Mode	Dynamic/Presentation/RGB/Cinema/(3D)/User 1/User 2
	Reference Mode	Dynamic/Presentation/RGB/Cinema/(3D)
	Brightness
	Contrast
	Color
	Tint
	Sharpness
	Brilliant Color On/Off
2. PICTURE	Color Temperature	Cool/Normal/Warm
	Color Temperature Fine Tuning	R Gain/G Gain/B Gain/R Offset/G Offset/B Offset
	3D Color Management	Primary Color R/G/B/C/M/Y
		Hue
		Saturation
		Gain
	Reset Picture Settings	Current/All/ Cancel
3. SOURCE	Quick Auto Search On/Off
	Color Space Conversion Auto/RGB/YUV

4. SYSTEM SETUP: Basic	Presentation Timer	Timer period 1~240 minutes
		Timer display Always/3 min/2 min/1 min/Never
		Timer position	Top-Left/Bottom-Left/Top-Right/Bottom-Right
		Timer counting direction	Count Down/Count Up
		On/Off Yes/No
	Language		English/Français/Deutsch Italiano/Espanol/Pysckii 繁體中文/简体中文/日本語/한국어/Svenska/Nederlands/Türkçe/Čeština/Português/1mm / Polski Magyar/Български/Hrvatski/Română/Suomi/Norsk/Dansk/Indonesian/Еллгмкá/العربية/हिन्दी
	Projector Installation		Front Table/Rear Table/Rear Ceiling/Front Ceiling
	Menu Settings	Menu display time	5 secs/10 secs/20 secs/30 secs/Always
		Menu position	Center/Top-Left/Top-Right/Bottom-Right/Bottom-Left
		Reminder message On/Off
	Operation Settings	Direct Power On On/Off
		Signal Power On On/Off
		Auto Power Off	Disable/3 mins/10 mins/15 mins/20 mins/25 mins/30 mins
		Blank Timer	Disable/5 mins/10 mins/15 mins/20 mins/25 mins/30 mins
		Sleep Timer	Disable/30 mins/1 hr/2 hrs/3 hrs/4 hrs/8 hrs/12 hrs
		Fan Speed Normal/High
	Panel Key Lock	On/Off	Yes/No
	Background Color		BenQ/Black/Blue/Purple
	Splash Screen BenQ/Black/Blue
	High Altitude Mode	On/Off	Yes/No
	Audio Settings	Mute On/Off
		Volume 0~10
	Light Source Settings	Light Source Mode Normal/Economic/SmartEco
		Reset light source timer	Reset/Cancel
		Equivalent light source hour
5. SYSTEM SETUP: Advanced	Security Settings	Change password
		Change Security Power on Lock
	Baud Rate		2400/4800/9600/14400/19200/38400/57600/115200
	Test Pattern On/Off
	Closed Caption	Closed Caption Enable	On/Off
		Caption Version CCI/CC2/CC3/CC4
	Standby Settings	Standby Monitor Out On/Off
		Audio Pass Through	Off/Computer I/Computer 2/Video, S-Video/HDMI
	Reset All Settings	Reset/Cancel
6. INFORMATION	Current System Status		SourcePicture ModeResolutionLight Source Mode3D FormatColor SystemEquivalent light sourceFirmware Version

Note that the menu items are available when the projector detects at least one valid signal. If there is no equipment connected to the projector or no signal detected, limited menu items are accessible.

Description of each menu

- The default values listed in this manual, especially on pages 50-58, are for reference only. They may vary between the projectors due to the continuous improvement to the products.

FUNCTION DESCRIPTION
Wall Color	Corrects the projected picture's color when the projection surface is not white. See "Using Wall Color" on page 36 for details.
Aspect Ratio	There are four options to set the image's aspect ratio depending on your input signal source. See "Selecting the aspect ratio" on page 33 for details.
Keystone	Corrects any keystoning of the image. See "Correcting keystone" on page 26 for details.
Position	Displays the position adjustment page. To move the projected image, use the directional arrow keys. The values shown on the lower position of the page change with every key press you made until they reach their maximum or minimum.This function is only available when a PC signal (analog RGB) is selected.
Phase	Adjusts the clock phase to reduce image distortion.This function is only available when a PC signal (analog RGB) is selected.
H. Size	Adjusts the horizontal width of the image.This function is only available when a PC signal (analog RGB) is selected.
Digital Zoom	Magnifies or reduces the projected image. See "Magnifying and searching for details" on page 33 for details.
I. DISPLAY menu	3DThis projector features a 3D function which enables you to enjoy the 3D movies, videos, and sporting events in a more realistic way by presenting the depth of the images. You need to wear a pair of 3D glasses to view the 3D images.3D ModeThe default setting isAutoand the projector automatically chooses an appropriate 3D format when detecting 3D contents. If the projector cannot recognize the 3D format, press 🔊to choose a 3D mode.3D Sync InvertWhen you discover the inversion of the image depth, enable this function to correct the problem.Save 3D SettingsSave current 3D settings.Apply 3D SettingsApply saved 3D settings.
	Teaching TemplateProvides some templates as teaching aids. Teachers can use them for teaching. See "Use Teaching Template" on page 43 for details.
Picture Mode	Pre-defined picture modes are provided so you can optimize your projector image set-up to suit your program type. See "Selecting a picture mode" on page 35 for details.
Reference Mode	Selects a picture mode that best suits your need for the image quality and further fine-tune the image based on the selections listed on the same page below. See "Setting the User 1/User 2 mode" on page 35 for details.
Brightness	Adjusts the brightness of the image. See "Adjusting Brightness" on page 36 for details.
Contrast	Adjusts the degree of difference between dark and light in the image. See "Adjusting Contrast" on page 36 for details.
Color	Adjusts the color saturation level -- the amount of each color in a video image. See "Adjusting Color" on page 36 for details.This function is only available when a Video or S-Video signal is selected.
Tint	Adjusts the red and green color tones of the image. See "Adjusting Tint" on page 36 for details.This function is only available when a Video or S-Video signal is selected and the system format is NTSC.
Sharpness	Adjusts the image to make it look sharper or softer. See "Adjusting Sharpness" on page 36 for details.This function is only available when a Video or S-Video signal is selected.
	FUNCTION DESCRIPTION
2. PICTURE menu	Brilliant Color	See "Adjusting Brilliant Color" on page 36 for details.
	Color Temperature	See "Selecting a Color Temperature" on page 36 for details.
	Color Temperature Fine Tuning	See "Setting a preferred color temperature" on page 37 for details.
	3D Color Management	See "3D Color Management" on page 37 for details.
	Reset Picture Setting	See "Resetting current or all picture modes" on page 38 for details.When Picture Mode is under Dynamic, choosing "Current" will only reset the Dynamic to default value, however, choosing "All" will reset all the Picture Mode settings to default values.
3. SOURCE menu	Quick Auto Search	See "Switching input signal" on page 32 for details.
	Color Space Conversion	See "Changing Color Space" on page 32 for details.
FUNCTION DESCRIPTION
4. SYSTEM SETUP:Basic menu	PresentationTimer	Reminds the presenter to finish the presentation within a certain time frame. See "Setting the presentation timer" on page 39 for details.
	Language	Sets the language for the On-Screen Display (OSD) menus. See "Using the menus" on page 28 for details.
	ProjectorInstallation	The projector can be installed on a ceiling or behind a screen, or with one or more mirrors. See "Choosing a location" on page 15 for details.
	MenuSettings	Menu display timeSets the length of time the OSD will remain active after your last key press. The range is from 5 to 30 seconds in 5-second increments.Menu positionSets the On-Screen Display (OSD) menu position.Reminder messageSets whether to display the reminder message.
4. SYSTEM SETUP:Basic menu	Direct Power OnSelectingOnenables the function. See "Starting up the projector" on page 24 for details.Signal Power OnSelectingOnthe projector will turn on automatically when VGA signal is detected. SelectingOffthe projector has to be turned on manually (by keypad or remote). See "Starting up the projector" on page 24 for details.Auto Power OffAllows the projector to turn off automatically if no input signal is detected after a set period of time. See "Setting Auto Power Off" on page 61 for details.Blank TimerSets the image blank time when the Blank feature is activated, once elapsed the image will return to the screen. See "Hiding the image" on page 41 for details.Sleep TimerSets the auto-shutdown timer. The timer can be set to a value between 30 minutes and 12 hours.Fan SpeedThis function is only available when a dust filter is installed. Selecting High enables the function.
	Panel Key LockDisables or enables all panel key functions except Power on the projector and keys on the remote control.
	Background ColorAllows you to select which background color will display when no signal is input into the projector. Four options are available: BenQ logo, Black, Blue, or Purple.
	Splash ScreenAllows you to select which logo screen will display during projector start-up. Three options are available: BenQ logo, Black screen, or Blue screen.
5. SYSTEM SETUP: Advanced menu	High Altitude ModeA mode for operation in high altitude areas. See "Operating in a high altitude environment" on page 42 for details.
	Audio SettingsAllows you to enter the audio setting menu.MuteSets the mute function.VolumeAdjusts the audio volume level.
	Light Source SettingsLight Source ModeSee "Setting Light Source Mode" on page 60 for details.Reset light source timer Resets the light source timer to '0'.Equivalent light source hourSee "Getting to know the light source hour" on page 60 for details on how the total light source hour is calculated.
	Security SettingsChange passwordYou will be asked to enter the current password before changing to a new one.Change SecurityPower on LockSee "Utilizing the password function" on page 29 for details.
	Baud RateSelects a baud rate that is identical with your computer's so that you can connect the projector using a suitable RS-232 cable and update or download the projector's firmware. This function is intended for qualified service personnel.
	Test PatternSelecting On enables the function and the projector displays the grid test pattern. It helps you adjust the image size and focus and check that the projected image is free from distortion.
5. SYSTEM SETUP: Advanced menu	Closed Caption
	Closed Caption EnableActivates the function by selectingOnwhen the selected input signal carries closed captions.• Captions: An on-screen display of the dialogue, narration, and sound effects of TV programs and videos that are closed captioned (usually marked as "CC" in TV listings).Caption VersionSelects a preferred closed captioning mode. To view captions, select CCI, CC2, CC3, or CC4 (CCI displays captions in the primary language in your area).
	Standby Settings
	Standby Monitor OutSelectingOnenables the function. The projector can output a VGA signal when it is in standby mode and theCOMPUTER IandMONITOR-OUTjacks are correctly connected to devices. See "Connecting a monitor" on page 19for how to make the connection.Enabling this function slightly increases the standby power consumption.The Standby Monitor Out only works when an appropriate D-Sub input is made to the COMPUTER I jack.Audio Pass ThroughThe projector can play sound when it is in standby mode and the corresponding jacks are correctly connected to devices. Press ◄ ▶to choose the source that you wish to use. See "Connection" on page 18for how to make the connection.Enabling this function slightly increases the standby power consumption.
	Reset All Settings
	Returns all settings to the factory preset values.The following settings will still remain: User I, User 2, Projector Installation, Color Space Conversion, High Altitude Mode, Security Settings, Baud Rate and Keystone.

FUNCTION DESCRIPTION
6. INFORMATION menu	Current System Status	SourceShows the current signal source.Picture ModeShows the selected mode in thePICTUREmenu.ResolutionShows the native resolution of the input signal.Light Source ModeShows the current light source mode.3D FormatShows the current 3D mode.Color SystemShows input system format, NTSC, PAL, SECAM, or RGB.Equivalent light sourceDisplays the number of hours the light source has been used.Firmware VersionShows firmware version.

Maintenance

Care of the projector

Your projector needs little maintenance. The only thing you need to do on a regular basis is to keep the lens and case clean.

Cleaning the lens

Clean the lens whenever you notice dirt or dust on the surface.

• Use a canister of compressed air to remove dust.
• If there is dirt or smears, use lens-cleaning paper or moisten a soft cloth with lens cleaner and gently wipe the lens surface.
• Never use any type of abrasive pad, alkaline/acid cleaner, scouring powder, or volatile solvent, such as alcohol, benzene, thinner or insecticide. Using such materials or maintaining prolonged contact with rubber or vinyl materials may result in damage to the projector surface and cabinet material.

Never rub the lens with abrasive materials.

Cleaning the projector case

Before you clean the case, turn the projector off using the proper shutdown procedure as described in "Shutting down the projector" on page 45 and unplug the power cord.

• To remove dirt or dust, wipe the case with a soft, lint-free cloth.
• To remove stubborn dirt or stains, moisten a soft cloth with water and a neutral pH detergent. Then wipe the case.

Never use wax, alcohol, benzene, thinner or other chemical detergents. These can damage the case.

Storing the projector

If you need to store the projector for an extended time, please follow the instructions below:

• Make sure the temperature and humidity of the storage area are within the recommended range for the projector. Please refer to "Specifications" on page 64 or consult your dealer about the range.
• Retract the adjuster feet.
• Remove the battery from the remote control.
• Pack the projector in its original packing or equivalent.

Transporting the projector

It is recommended that you ship the projector with its original packing or equivalent.

Light source information

Getting to know the light source hour

When the projector is in operation, the duration (in hours) of light source usage is automatically calculated by the built-in timer. The method of calculating the equivalent light source hour is as follows:

Total (equivalent) light source hour= 20/9 * (hours used in Normal mode) + 5/3 * (hours used in Eco mode) + 20/13 * (hours used in SmartEco)

See "Setting Light Source Mode" below for details.

The light source hour in Economic and SmartEco is calculated shorter of that in Normal mode. That is, using the projector in Economic or SmartEco mode helps to extend the light source hour.

To obtain the light source hour information:

I. Press MENU/EXIT and then press ◀/▶ until the SYSTEM SETUP: Advanced menu is highlighted.
2. Press ▼ to select Light Source Settings and press MODE/ENTER. The Light Source Settings page displays.
3. You will see the Equivalent light source information displaying on the menu.
4. To leave the menu, press MENU/EXIT.

You can also get the light source hour information on the INFORMATION menu.

Extending light source life

The projection light source is a consumable item. To keep the light source life as long as possible, you can do the following settings via the OSD menu or remote control.

Setting Light Source Mode

Using a different light source mode will reduce system noise and power consumption. If the Economic/SmartEco mode is selected, the light output will be reduced and result in darker projected pictures, the projector protected for longer working life.

Setting the projector in a different light source mode also extends the light source operation life. To set Economic/SmartEco mode, go into the SYSTEM SETUP:

Advanced > Light Source Settings > Light Source Mode menu and press ◀/▶.

The light source modes are defined as the chart below.

Light Source Mode	Description
Normal	100% light source brightness.
Economic	Saves 25% light source power consumption.
SmartEco	Saves up to 70% light source power consumption depending on the content brightness level.

Setting Auto Power Off

This function allows the projector to turn off automatically if no input source is detected after a set period of time to prevent unnecessary waste of light source life.

To set Auto Power Off, go into the SYSTEM SETUP: Basic > Auto Power Off menu and press ◀. The time period can be set from 5 to 30 minutes in 5-minute increments. If the preset time lengths are not suitable for your presentation, select Disable. The projector will not automatically shut down in a certain time period.

Indicators

Indicators			Status & Description
POWER	TEMP LIGHT
System Message
Orange Off Off			Stand-by mode
Green Flashing Off Off			Powering up
Green Off Off			Normal operation
Orange Flashing Off Off			Normal power-down cooling
Orange Flashing Green Flashing Red Flashing	Red Flashing	Red Flashing	Download
Off Red Red			CW start fail
Burn-In Messages
Green Flashing Off Off			Burn-in ON
Orange Off Off			Burn-in OFF
Light Source Error Messages
Off Off		Red Flashing	Light source error in normal operation
Off Off Red			Light source is not lit up
Thermal Error Messages
Orange Red Off			Fan 1 error (the actual fan speed is outside the desired speed)
Orange Red Flashing	Off		Fan 2 error (the actual fan speed is outside the desired speed)
Green Red Off			Temperature 1 error (over limited temperature)
Off Red Flashing	Off		Thermal Sensor 1 open error
Off Red Flashing	Off		Thermal Sensor 1 short error
Off Red Flashing	Off		Thermal IC #1 I2C Connection error

Troubleshooting

? The projector does not turn on.

Cause Remedy
There is no power from the power cable.	Plug the power cord into the AC inlet on the projector, and plug the power cord into the power outlet. If the power outlet has a switch, make sure that it is switched on.
Attempting to turn the projector on again during the cooling process.	Wait until the cooling down process has completed.

⑦ No picture

Cause Remedy
The video source is not turned on or connected correctly.	Turn the video source on and check that the signal cable is connected correctly.
The projector is not correctly connected to the input signal device.	Check the connection.
The input signal has not been correctly selected.	Select the correct input signal with the SOURCE key on the projector or remote control.

? Blurred image

Cause Remedy
The projection lens is not correctly focused.	Adjust the focus of the lens using the focus ring.
The projector and the screen are not aligned properly.	Adjust the projection angle and direction as well as the height of the unit if necessary.

⑦ Remote control does not work

Cause Remedy
The battery is out of power. Replace the battery with new one.
There is an obstacle between the remote control and the projector.	Remove the obstacle.
You are too far away from the projector.	Stand within 10 meters (33 feet) of the projector.

⑦ The password is incorrect

Cause Remedy
You do not remember the password.	Please see "Entering the password recall procedure" on page 30 for details.

Specifications

All specifications are subject to change without notice.

Optical

Resolution

LX20

1024 × 768 XGA

LW21

1280 × 800 WXGA

Display system

I-CHIP DMD

Lens F/Number

(LX20)

F = 2.42 to 2.97,

f = 20.7 to 30.05 mm

(LW21)

F = 2.42 to 2.97

f = 20.7 to 30.05 mm

Offset

(LX20): 130%; (LW21): 125%

Zoom ratio

(LX20): 1.5X; (LW21): 1.5X

Light source

Laser: 210 W

Electrical

Power supply

DC19V, I2 A,

50-60 Hz (Automatic)

Power consumption

310 W (Max); < 0.5 W (Standby);

Mechanical

Weight

4.5 Kg (9.9 lbs)

Output terminals

RGB output

D-Sub 15-pin (female) x I

Speaker

(Stereo) 2 watt x l

Control

RS-232 serial control

9 pin x l

IR receiver x I

USB Type B x I

Input terminals

Computer input

RGB input

D-Sub 15-pin (female) × 2

Video signal input

S-VIDEO

Mini DIN 4-pin port x I

VIDEO

RCA jack x l

SD/HDTV signal input

Analog - Component RCA jack x 3

(through RGB input)

Digital-HDMI x I

Audio signal input

Audio in

PC audio jack x 2

Audio out

PC audio jack x l

Environmental Requirements

Operating temperature

0^ C-40^ C at sea level

Operating relative humidity

10%-90% (without condensation)

Operating altitude

0-1499 m at 0°C-35°C

1500-3000* m at 0°C-30°C (with High

Altitude Mode on)

* China region only applies to an altitude

of 2000m.

Light source life results will vary depending on environmental conditions and usage.

Dimensions

379.8 mm (W) x 117.5 mm (H) x 248.0 mm (D)

Ceiling mount installation

Ceiling mount screw: M4

(Max L = 25 mm; Min L = 20 mm)

Unit: mm

Timing chart

Supported timing for D-SUB input

PC timing

Resolution Mode		Vertical Frequency (Hz)	Horizontal Frequency (kHz)	Clock (MHz)
720 x 400 720 x 400_70 70.087 31.469 28.3221
640 x 480	VGA_60*1	59.940 31.469	25.175
	VGA_72 72.809	37.861 31.500
	VGA_75 75.000	37.500 31.500
	VGA_85 85.008	43.269 36.000
800 x 600	SVGA_60*1	60.317 37.879	40.000
	SVGA_72 72.188	48.077 50.000
	SVGA_75 75.000	46.875 49.500
	SVGA_85 85.061	53.674 56.250
	SVGA_120*2(Reduce Blanking)	119.854 77.425	83.000
1024 x 768	XGA_60*1	60.004 48.363	65.000
	XGA_70 70.069	56.476 75.000
	XGA_75 75.029	60.023 78.750
	XGA_85 84.997	68.677 94.500
	XGA_120*2(Reduce Blanking)	119.989 97.551	115.500
1152 x 864 1152 x 864_75 75.00 67.500 108.000
1024 x 576 BenQ NB Timing 60.0		35.820 46.996
1024 x 600 BenQ NB Timing 64.995 41.467 51.419
1280 x 720	1280 x 720_60*1	60.000 45.000	74.250
1280 x 768	1280 x 768_60*1	59.870 47.776	79.500
1280 x 800	WXGA_60*1	59.810 49.702	83.500
	WXGA_75 74.934	62.795 106.500
	WXGA_85 84.880	71.554 122.500
	WXGA_120*2(Reduce Blanking)	119.909	101.563 146.25
1280 x 1024	SXGA_60*3	60.020 63.98	108.000
	SXGA_75	75.025 79.976	135.000
	SXGA_85	85.024 91.146	157.500
1280 x 960	1280 x 960_60*3	60.000 60.000	108
	1280 x 960_85 85.002	85.938 148.500
1360 x 768	1360 x 768_60*3	60.015 47.712	85.500
1440 x 900	WXGA+_60*3	59.887 55.935	106.500
1400 x 1050	SXGA+_60*3	59.978 65.317	121.750
1600 x 1200	UXGA*3	60.000 75.000	162.000
1680 x 1050	1680 x 1050_60*3	59.954 65.290	146.250
640 x 480@67Hz	MAC13	66.667 35.000	30.240
832 x 624@75Hz	MAC16	74.546 49.722	57.280
1024 x 768@75Hz MAC19 74.93 60.241 80.000
1152 x 870@75Hz	MAC21	75.06	68.68	100.000

- *Supported timing for 3D signal with Frame Sequential, Top Bottom and Side by Side format.

**Supported timing for 3D signal with Frame Sequential format.

***Supported timing for 3D signal with Top Bottom and Side by Side format.

- The timings showing above may not be supported due to EDID file and VGA graphic card limitations. It is possible that some timings cannot be chosen.

Supported timing for HDMI input

PC timing

Resolution Mode		Vertical Frequency (Hz)	Horizontal Frequency (kHz)	Clock (MHz)
640 x 480	VGA_60*1	59.940 31.469	25.175
	VGA_72 72.809	37.861 31.500
	VGA_75 75.000	37.500 31.500
	VGA_85 85.008	43.269 36.000
720 x 400 720 x 400_70 70.087 31.469 28.322
800 x 600	SVGA_60*1	60.317 37.879	40.000
	SVGA_72 72.188	48.077 50.000
	SVGA_75 75.000	46.875 49.500
	SVGA_85 85.061	53.674 56.250
	SVGA_120*2(Reduce Blanking)	119.854 77.425	83.000
1024 x 768	XGA_60*1	60.004 48.363	65.000
	XGA_70 70.069	56.476 75.000
	XGA_75 75.029	60.023 78.750
	XGA_85 84.997	68.677 94.500
	XGA_120*2(Reduce Blanking)	119.989 97.55	115.500
1152 x 864 1152 x 864_75 75.00		67.500 108.000
1024 x 576	BenQ Notebook Timing	60.0	35.820 46.996
1024 x 600	BenQ Notebook Timing	64.995 41.467	51.419
1280 x 720	1280 x 720_60*1	60.000 45.000	74.250
1280 x 768	1280 x 768_60*1	59.870 47.776	79.500
1280 x 800	WXGA_60*1	59.810 49.702	83.500
	WXGA_75	74.934 62.795	106.500
	WXGA_85	84.880 71.554	122.500
	WXGA_120*2(Reduce Blanking)	119.909	101.563 146.25
1280 x 1024	SXGA_60*3	60.020 63.981	108.000
	SXGA_75 75.025	79.976 135.000
	SXGA_85 85.024	91.146 157.500
1280 x 960	1280 x 960_60*3	60.000 60.000	108
	1280 x 960_85	85.002 85.938	148.500
1360 x 768	1360 x 768_60*3	60.015 47.712	85.500
1440 x 900	WXGA+_60*3	59.887 55.935	106.500
1400 x 1050	SXGA+_60*3	59.978 65.317	121.750
1600 x 1200	UXGA ^3	60.000 75.000	162.000
1680 x 1050	1680 x 1050_60 ^3	59.954 65.290	146.250
640 x 480@67Hz MAC13	66.667 35.000 30.240
832 x 624@75Hz MAC16	74.546 49.722 57.280
1024 x 768@75Hz MAC19	75.020 60.241 80.000
1152 x 870@75Hz MAC21	75.060 68.680 100.000

^* Supported timing for 3D signal with Field Sequential, over-under and side-by-side format.

^*2 Supported timing for 3D signal with Field Sequential format.

^*3 Supported timing for 3D signal with over-under and side-by-side format.

There timing showing depend the EDID file and VGA graphic card limitation. It is possible that user cannot choose the above timings on VGA display card.

Supported timing for HDMI (HDCP) input

Video timing

Timing Resolution		Horizontal Frequency (kHz)	Vertical Frequency (Hz)	Dot Clock Frequency (MHz)
480i^*1	720(1440) × 480 15.73	59.94 27
480p^*1	720 × 480 31.47	59.94 27
576i	720(1440) × 576 15.63	50	27
576p	720 × 576 31.25	50	27
720/50p^*2	1280 × 720	37.5	50	74.25
720/60p^*3	1280 × 720	45.00 60	74.25
1080/24P^*2	1920 × 1080	27	24	74.25
1080/25P	1920 × 1080	28.13	25	74.25
1080/30P	1920 × 1080	33.75	30	74.25
1080/50i^*4	1920 × 1080	28.13	50	74.25
1080/60i^*4	1920 × 1080	33.75	60	74.25
1080/50P^*5	1920 × 1080	56.25	50	148.5
1080/60P^*5	1920 × 1080	67.5	60	148.5

* ^1 Supported timing for 3D signal with Field Sequential format.
^*2 Supported timing for 3D signal with frame packing, over-under and side-by-side format.
*3 Supported timing for 3D signal with Field Sequential format, frame packing, over-under and side-by-side format.
*4 Supported timing for 3D signal with side-by-side format.
*5 Supported timing for 3D signal with over-under format.

Supported timing for Component Video Input

Timing Resolution		Horizontal Frequency (kHz)	Vertical Frequency (Hz)	Dot Clock Frequency (MHz)
480i* 720 x 480	15.73 59.94 13.5
480p* 720 x 480	31.47 59.94 27
576i 720 x 576	15.63 50 13.5
576p 720 x 576	31.25 50 27
720/50p 1280 x 720	37.5 50	74.25
720/60p*	1280 x 720	45.00	60 74.25
1080/50i	1920 x 1080	28.13 50 74.25
1080/60i	1920 x 1080	33.75 60 74.25
1080/24P 1920 x 1080	27 24 74.25
1080/25P 1920 x 1080	28.13 25 74.25
1080/30P 1920 x 1080	33.75 30 74.25
1080/50P 1920 x 1080	56.25 50 148.5
1080/60P 1920 x 1080	67.5 60 148.5

*Supported timing for 3D signal with Field Sequential format.

Supported timing for Video and S-Video inputs

Video mode	Horizontal Frequency (kHz)	Vertical Frequency (Hz)	Color sub-carrier Frequency (MHz)
NTSC*	15.73	60	3.58
PAL	15.63	50	4.43
SECAM	15.63	50	4.25 or 4.41
PAL-M	15.73	60	3.58
PAL-N	15.63	50	3.58
PAL-60	15.73	60	4.43
NTSC4.43	15.73	60	4.43

*Supported timing for 3D signal with Field Sequential format.

Supported 3D signal for HDMI (HDCP) input

Video timing

Timing Resolution		Horizontal frequency (KHz)	Vertical frequency (Hz)	3D Field Sequential	3D frame packing	3D over-under	3D side by side
480i 720	(1440) x 480 15.73	59.94		◎
480p 720	x 480 31.47 59.94			◎
576i 720	(1440) x 576 15.63	50
576p 720	x 576 31.25 50
720/50p 12	80 x 720 37.5 50				◎	◎	◎
720/60p 12	80 x 720 45 60			◎	◎	◎	◎
1080/24P 19	20 x 1080 27 24				◎	◎	◎
1080/25P 19	20 x 1080 28.13 25
1080/30P 19	20 x 1080 33.75 30
1080/50i	1920 x 1080 28	13 50					◎
1080/60i	1920 x 1080 33	75 60					◎
1080/50P 19	20 x 1080 56.25 50					◎
1080/60P 19	20 x 1080 67.5 60					◎

PC timing

Resolution	Timing	Horizontal frequency (KHz)	Vertical frequency (Hz)	3D Field Sequential	3D over-under	3D side by side
640 x 480	VGA_60	59.94 31.469		◎	◎	◎
	VGA_72	72.809	37.861
	VGA_75	75 37.5
	VGA_85	85.008	43.269
720 x 400	720x400_70 70.087	31.469
800 x 600	SVGA_60 60.317	37.879		◎	◎	◎
	SVGA_72 72.188	48.077
	SGVA_75	75 46.875
	SVGA_85	85.061	53.674
	SVGA_120 (Reduce Blanking)	119.854	77.425	◎
1024 x 768	XGA_60	60.004	48.363	◎	◎	◎
	XGA_70	70.069	56.476
	XGA_75	75.029	60.023
	XGA_85	84.997	68.667
	XGA_120 (Reduce Blanking)	119.989	97.551	◎
1152 x 864	1152 x 864_75	75 67.5
1024 x 576	BenQ Notebook Timing	60 35.82
1024 x 600	BenQ Notebook Timing	64.995	41.467
1280 x 720	1280 x 720_60	60 45		◎	◎	◎
	1280 x 720_120	120	90	◎
1280 x 768	1280 x 768_60 (Reduce Blanking)	60 47.396		◎	◎	◎
	1280 x 768_60 59.87	47.776		◎	◎	◎
1280 x 800	WXGA_60 59.8	49.702		◎	◎	◎
	WXGA_75 74.93	4 62.795
	WXGA_85 84.88	71.554
	WXGA_120(Reduce Blanking)	119.909 101.563		◎
1280 x 1024	SXGA_60 60.02	63.981			◎	◎
	SXGA_75 75.02	5 79.976
	SXGA_85 85.02	4 91.146
1280 x 960	1280 x 960_60 60	60			◎	◎
	1280 x 960_85 85.002	85.938
1360 x 768 1360	x 768_60 60.015 47.7	12			◎	◎
1440 x 900	WXGA+_60(Reduce Blanking)	60 55.469			◎	◎
	WXGA+_60 59.8	87 55.935			◎	◎
1400 x 1050 SXGA+_60 59.978 65.317					◎	◎
1600 x 1200	UXGA	60 75			◎	◎
1680 x 1050	1680 x 1050_60(Reduce Blanking)	59.883 64.674			◎	◎
	1680 x 1080_60	59.954	65.29		◎	◎
1920 x 1200	1920 x 1200_60(Reduce Blanking)	59.95	74.038		◎	◎
640 x 480@67Hz MAC13 66.667 35
832 x 624@75Hz MAC16 74.546 49.722
1024 x 768@75Hz	MAC19 75.02	60.241
1152 x 870@75Hz	MAC21 75.06	68.68

Supported 3D signal for D-SUB input

PC timing

Resolution	Timing	Horizontal frequency (KHz)	Vertical frequency (Hz)	3D Field Sequential	3D over-under	3D side by side
640 x 480	VGA_60	59.94 31.469		◎	◎	◎
	VGA_72	72.809 37.861
	VGA_75	75	37.5
	VGA_85	85.008 43.269
720 x 400	720x400_70	70.087 31.469
800 x 600	SVGA_60	60.317 37.879		◎	◎	◎
	SVGA_72	72.188 48.077
	SGVA_75	75 46.875
	SVGA_85	85.061 53.674
	SVGA_120 (Reduce Blanking)	119.854	77.425	◎
1024 x 768	XGA_60 60.004 48.363			◎	◎	◎
	XGA_70 70.069 56.476
	XGA_75 75.029 60.023
	XGA_85 84.997 68.667
	XGA_120 (Reduce Blanking)	119.989	97.551	◎
1152 x 864 1152	x 864_75 75	67.5
1024 x 576	BenQ Notebook Timing	60 35.82
1024 x 600	BenQ Notebook Timing	64.995 41.467
1280 x 720	1280 x 720_60 60	45		◎	◎	◎
	1280 x 720_120 120	90		◎
1280 x 768	1280 x 768_60(Reduce Blanking)	60 47.396		◎	◎	◎
	1280 x 768_60 59.87	47.776		◎	◎	◎
1280 x 800	WXGA_60 59.81	49.702		◎	◎	◎
	WXGA_75 74.93	4 62.795
	WXGA_85 84.88	71.554
	WXGA_120(Reduce Blanking)	119.909 101.563		◎
1280 x 1024	SXGA_60 60.02	63.981			◎	◎
	SXGA_75 75.02	5 79.976
	SXGA_85 85.02	4 91.146
1280 x 960	1280 x 960_60 60	60			◎	◎
	1280 x 960_85 85.00	2 85.938
1360 x 768 1360	x 768_60 60.015 47.71	2			◎	◎
1440 x 900	WXGA+_60(Reduce Blanking)	60 55.469			◎	◎
	WXGA+_60 59.88	7 55.935			◎	◎
1400 x 1050	SXGA+_60 59.97	8 65.317			◎	◎
1600 x 1200	UXGA	60 75			◎	◎
1680 x 1050	1680 x 1050_60(Reduce Blanking)	59.883 64.674			◎	◎
	1680 x 1080_60	59.954 65.29			◎	◎
1920 x 1200	1920 x 1200_60(Reduce Blanking)	59.95 74.038			◎	◎
640 x 480@67Hz MAC13 66.667 35
832 x 624@75Hz MAC16 74.546 49.722
1024 x 768@75Hz	MAC19 75.02	60.241
1152 x 870@75Hz	MAC21 75.06	68.68

Supported 3D signal for Video and S-Video input

Video mode	Horizontal Frequency (kHz)	Vertical Frequency (Hz)	3D Field Sequential
NTSC	15.73	60	◎
PAL	15.63	50
SECAM	15.63	50
PAL-M	15.73	60
PAL-N	15.63	50
PAL-60	15.73	60
NTSC4.43	15.73	60

Warranty and Copyright information

Patents

This BenQ projector is covered by the following patents:

U.S. patents 6,837,608; 7,181,318; TW patents 202690; I259932; China Patents (中国发明专利) ZL01143168.7; ZL200510051609.2

Limited warranty

BenQ warrants this product against any defects in material and workmanship, under normal usage and storage.

Proof of purchase date will be required with any warranty claim. In the event this product is found to be defective within the warranty period, BenQ's only obligation and your exclusive remedy shall be replacement of any defective parts (labor included). To obtain warranty service, immediately notify the dealer from which you purchased the product of any defects.

Important: The above warranty shall be void if the customer fails to operate the product in accordance with BenQ's written instructions, especially the ambient humidity must be in-between 10% and 90%, temperature in-between 0°C and 35°C, altitude lower than 4920 feet, and avoiding to operate the projector in a dusty environment. This warranty gives you specific legal rights, and you may have other rights which vary from country to country.

For other information, please visit www.BenQ.com.

Copyright

Copyright 2014 by BenQ Corporation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of BenQ Corporation.

Disclaimer

BenQ Corporation makes no representations or warranties, either expressed or implied, with respect to the contents hereof and specifically disclaims any warranties, merchantability or fitness for any particular purpose. Further, BenQ Corporation reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation to notify any person of such revision or changes.

*DLP, Digital Micromirror Device and DMD are trademarks of Texas Instruments. Others are copyrights of their respective companies or organizations.