PJ308W - Projector GPX - Free user manual and instructions

Product Type	Video Projector
Model	PJ308W
Brand	GPX
Native Resolution	800 x 600 (SVGA)
Brightness	2500 lumens
Contrast Ratio	2000:1
Lamp Type	UHP
Lamp Life	Up to 5000 hours (Eco mode)
Keystone Correction	±15° (Vertical)
Projection Distance	1.2 – 10 meters
Projection Size	40 – 200 inches
Built-in Speaker	1 x 3W
Inputs	HDMI, VGA, Composite (RCA), Audio 3.5mm
Outputs	Audio 3.5mm
Remote Control	Included (IR)
Power Consumption	250W (Max)
Power Supply	AC 100-240V, 50/60Hz
Dimensions (W x D x H)	280 x 220 x 80 mm
Weight	2.5 kg
Mounting	Desktop / Ceiling mount (optional)
Cooling Fan	Internal, variable speed
Filter Cleaning	Every 100 hours (user accessible)
Safety Features	Auto shutdown, overheat protection, child lock
Disposal	WEEE compliant, do not dispose with household waste

Frequently Asked Questions - PJ308W GPX

How do I replace the lamp on my GPX PJ308W projector?

Turn off the projector and unplug it. Let it cool for at least 30 minutes. Remove the lamp cover screw on the bottom, slide off the cover, then unscrew and remove the old lamp. Insert the new lamp (model: GPX LMP-308) and tighten screws, replace cover, and plug in. Reset the lamp timer via on-screen menu.

Why is the projected image upside down?

Press the Menu button on the remote, go to Settings > Projection Mode, and select Ceiling Mount if the projector is mounted on the ceiling, or Rear if projecting from behind the screen. Alternatively, use the Flip button on the remote.

What should I do if there is no signal displayed?

Check that the source device (laptop, DVD player) is turned on and connected properly via HDMI or VGA. Press the Source button on the remote or projector to cycle through inputs. Ensure the cable is not damaged. If using HDMI, try a different cable.

How do I clean the projector lens?

Use a soft, lint-free lens cloth or a lens cleaning pen. Gently wipe in a circular motion. Avoid using liquids or abrasive materials. For stubborn dust, use a blower bulb first. Clean the lens only when the projector is off and cool.

Can I connect my smartphone to the projector?

Yes, if your smartphone supports HDMI output, use an appropriate adapter (e.g., USB-C to HDMI or Lightning to HDMI). For Android devices with MHL support, use a dedicated MHL cable. Otherwise, you can use a wireless HDMI dongle (not included).

What is the recommended throw distance for a 100-inch screen?

For the GPX PJ308W, to achieve a 100-inch diagonal image, place the projector approximately 3.5 to 4 meters away from the screen. Use the zoom ring to fine-tune the size. Refer to the distance chart in the manual for precise calculations.

How often should I clean the air filter?

Clean the air filter after every 100 hours of use or when the filter warning icon appears. Turn off and unplug the projector, remove the filter cover, take out the filter, wash it with mild soap and water, let it dry completely, and reinstall. Do not operate without a filter.

Why does the projector shut down unexpectedly?

This may be due to overheating. Ensure ventilation openings are not blocked, the air filter is clean, and the ambient temperature is below 35°C. The projector has overheat protection that turns it off automatically. Let it cool for 10 minutes, then restart. If problem persists, check for internal fan failure.

Can I use the projector in a dusty environment?

The projector can be used in dusty environments, but you must clean the air filter more frequently (every 50 hours). Dust can clog the filter and cause overheating. Consider using a protective cover when not in use. Avoid operating near smoke or heavy dust.

How do I reset the lamp timer after replacement?

After replacing the lamp, press Menu on the remote, go to Settings > Lamp Setting > Lamp Time Reset, and select Yes. Confirm by pressing Enter. This ensures accurate tracking of lamp life for future warnings.

USER MANUAL PJ308W GPX

White projector and remote control device (no visible text or symbols)

Safety Instructions & Warnings

Important Safety Instructions

• Read these Instructions.
• Keep these Instructions.
• Heed all Warnings.
• Follow all instructions.
• Do not use this apparatus near water.

- Clean only with a dry cloth.

- Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.

- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

- Do not defeat the safety purpose of the polarized or grounding - type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. When the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

- Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

- Only use attachments/accessories specified by the manufacturer.

- Unplug this apparatus during lightning storms or when unused for long periods of time.

- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

- Use only with a cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/ apparatus combination to avoid injury from tip-over.

FCC Warnings

Warning: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Battery Warnings

• WARNING: Do not ingest battery, Chemical Burn Hazard.
• If the remote control supplied with this product contains a coin/button cell battery and the coin/button cell battery is swallowed, it can cause severe internal burns in just 2 hours and can lead to death.
• Keep new and used batteries away from children. If the battery compartment does not close securely, stop using the product and keep it away from children.
• If you think batteries might have been swallowed or placed inside any part of the body, seek immediate medical attention.
• CAUTION: Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type.
• WARNING: There is a danger of explosion if you attempt to charge standard Alkaline batteries in the unit. Only use rechargeable NiMH batteries.
• Battery shall not be exposed to excessive heat such as sunshine, fire, or the like.
• Do not mix old and new batteries.
• Completely replace all old batteries with new ones.
• Do not mix alkaline, standard (carbon-zinc), or rechargeable (ni-cad, ni-mh, etc) batteries.
• Batteries should be recycled or disposed of as per state and local guidelines.

Additional Warnings and Precautions

• Do not look directly into the projector light.
• Use in well ventilated area with ambient temperature between 41°F\~104°C (5°C\~40°C).
• Do not block any ventilation openings.
• To prevent risk of overheating, place the projector in an area that does not block ventilation, such as an enclosure or cabinet that might restrict airflow.
• Do not place the projector on an unstable surface, such as a loose stack of books, bed, or cushion.
• Do not cover the projector with a blanket, curtain, or similar.
• If setting up near a wall, leave at least 10 in. (25cm) between the wall and the projector's ventilation ports.
• Use a power outlet that can be easily accessed and unplugged.
• Do not block the light coming out of the lens. The light will heat the object and may cause burns, cause it to melt or catch fire.
• When powering off the projector, allow the cooling cycle to finish before handling or disconnecting the power supply.
• Do not use the projector if it has been damaged. Damage could be (but not limited to):

- Unit has been dropped or something has been dropped on it or into it.

- Something is loose or rattling inside the unit.

- Projector has been exposed to rain or liquid.

– Power supply or power cord is damaged.

• Do not use the projector in places where flammable gases or explosives may be present.
• Do not use the projector in the following conditions:

– Extremely hot, cold, or humid environments

- Environments with excessive amounts of dust and dirt in the atmosphere.

- Near appliances generating a strong electromagnetic field or heat.

– In direct sunlight.

• If the air vents become clogged or dirty, use a vacuum or air compressor and nozzle to clean. Do not use canned air, as the gas may leave a residue inside the enclosure.
• CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.
• Mains plug is used as disconnect device and it should remain readily operable during intended use. In order to disconnect the apparatus from the mains completely, the mains plug should be disconnected from the mains socket outlet completely.
• CAUTION: Use of controls or adjustments or performance of procedures other than those specified may result in hazardous radiation exposure.
• WARNING: Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
• WARNING: Use of this unit near fluorescent lighting may cause interference regarding use of the remote. If the unit is displaying erratic behavior move away from any fluorescent lighting, as it may be the cause.
• WARNING: Shock hazard - Do Not Open.
• Caution and marking information is located at the rear or bottom of the apparatus.
• WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain, moisture, dripping, or splashing.
• Objects filled with liquids, such as vases, shall not be placed on the apparatus.
• Do not place any objects, heavy or otherwise, on the projector.
• This product meets and complies with all Federal regulations.
  • See projector enclosure for related safety markings.
• No user serviceable parts inside, do not attempt to open the unit or perform any repair. Doing so may cause damage or injury, and will void your warranty.
• Refer all repairs or replacement to qualified service personnel.
• Stop using the projector and unplug the power source immediately if you notice the following:
  – Smoke coming from the unit or power supply.
• Strange odors or noises coming from the unit.
  – Liquid or foreign objects have gotten inside the unit.
• Unit has been dropped and enclosure has been damaged.

WARNING: To reduce the risk of electric shock, do not remove cover (or back). No user-serviceable parts inside. Refer servicing to qualified service personnel.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of un-insulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

This symbol indicates that this product incorporates double insulation between hazardous mains voltage and user accessible parts.

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Table of Contents

Overview 5

Features

Includes

Projector.... 6

Features & Inputs

Controls

Remote 8

Functions

Batteries

Menu Options 9

Picture Menu

Sound Menu

Options Menu

Projector Setup 12

Power

Projector Placement

Viewing Options

Ceiling Mount

Angle Adjustment

Image Adjustment

Connecting Your Projector 16

HDMI

Audio/Video Input

Micro SD & USB Storage Devices

Computer Video (VGA)

External Audio 19

Bluetooth - Pairing to Wireless Speakers or a Sound Bar

Headphone Jack/Audio Out

Customer Support 20

Contact Information

Warranty

International Support

Features

• Supports 480p, 720p, 1080i, 1080p
• Native Resolution: 800 x 480
• Aspect Ratio: 16:9, 4:3 LB
• LED bulb with 20,000 hour life
• Brightness: 2000 lumens
• Built-in Bluetooth transmitter
- I/O: 2 x HDMI, VGA PC, USB, Micro SD card, AV, 3.5mm Headphone Jack
- Up to 150" viewable screen size
• Display distance: 3.9-12.1 ft. (1.2-3.7M)
• Built-in stereo speakers
- Keystone angle correction and focus adjust
- Ceiling mountable

Includes

• Remote control: requires 2 AAA batteries (not included)
  • 3.5mm to 3 x RCA audio/video cable
• AC/DC power adapter
• User's Guide

Features & Inputs

1. Projector Lens
2. Focus Adjustment
3. Keystone Adjustment
4. Controls/Power Indicator
5. VGA/PC Input
6. Remote Sensor (duplicated on the front of the projector)

7. Speakers

8. Height Adjustment Peg

9. Micro SD Card Port
10. HDMI Input 1 & 2
11. USB Port
12. 3.5mm Audio Output
13. DC Power Port
14. 3.5mm AV Input

Controls

graph TD
    A["Source\nPress to change media source mode."] --> B["Menu\nPress to access on-screen menus and options."]
    B --> C["Arrows/OK\nPress to navigate on-screen menus and make selections."]
    C --> D["Power/Pair\nPress to power ON the projector.\nPress and hold to power OFF."]
    D --> E["Return\nPress to return to a previous page or setting in the on-screen menus."]

Functions

Power

Press to power ON.

Press and hold to power OFF.

Mute

Press to mute volume.

Previous / Next

Press to skip between chapters or tracks.

Back / Fwd

Press to search through an individual chapter or track.

Stop

Press to stop playback.

Flip

Press to flip display image 180°.

VOL+/VOL-

Press to adjust audio level.

▶ Play/Pause

Press to play or pause an individual chapter or track.

Arrows/OK

Press to navigate and confirm selections in Settings and other menus.

Source

Press to select media source (AV, PC, HDMI, MEDIA).

Menu

Press to access projector Settings.

Exit

Press to exit menus.

Go To/Number Keypad

Press to enter specific chapter or track numbers. Use Play button to begin playing.

Zoom

Press to zoom display image in or out.

Batteries

Requires 2 AAA batteries (not included).

Change projector settings by pressing the Menu button and selecting the Setup icon.

Note: Not all Settings are user adjustable.

Picture Menu

1. Picture Mode

Select Vivid, User (custom), Soft, or Standard.

2. Contrast, Brightness, etc

Set Picture Mode to "User" to adjust these settings.

3. Color Temperature

Select Warm, Cool, or Medium.

4. Aspect Ratio

Select 16:9, 4:3, or Auto.

Sound Menu

1. Sound Mode

Select Music, Movie, User (custom), Sports, or Standard.

2. Treble, Bass

Set Sound Mode to "User" to adjust these settings.

3. Balance

Adjust the audio balance.

4. Surround Sound

Turn Surround Sound ON or OFF.

Options Menu

1. OSD Language

Select English, French, or Spanish for the On Screen Display.

2. Bluetooth

Turn Bluetooth ON or OFF.

3. Restore Factory Default

Reset the projector and restore all of the default settings.

4. Panel Rotate

Flip and mirror the screen image.

Projector Setup

Power

Plug the AC/DC power adapter (included) into a standard wall outlet and the DC power input on the rear of the unit. After connecting power, please allow approximately 5 seconds to pass before powering the unit ON.

Projector Placement

For best results, place the projector in a dark room or other dimly lit area.

Use the unit with a dedicated projector screen for best picture resolution. If placing the projector behind the viewing screen (unit in front of/projecting toward viewers), a special screen will be required. Projector screens are not included. If you are not using the unit with a screen, a smooth, white or lightly colored surface will provide the best results.

Viewing Options

The projector can be used to project onto a wall or screen, mounted from the ceiling or on a table.

When projecting from the rear position, a special screen will be needed (not included) to display the image.

Line drawing of a meeting with participants seated at a table facing a presentation screen (no text or symbols)

FRONT TABLE

Line drawing of a meeting scene with a speaker at the front and a triangular presentation screen on the right (no text or symbols)

REAR TABLE

Illustration of a meeting scene with a projection screen and audience (no text or symbols)

FRONT CEILING

Illustration of a meeting with a speaker at the front and a projection screen on the right (no text or symbols)

REAR CEILING

Be sure to aim the remote at the sensor on the front or rear of the projector.

Ceiling Mount

To mount the projector from the ceiling, you will need mounting hardware recommended by a professional. Mounting hardware and instructions are not included.

Before mounting, be sure the ceiling structure can support the weight of the projector and the mount itself. It is recommended to have this unit mounted by a professional.

Angle Adjustment

Image Adjustment

graph TD
    A["KEystone"] --> B["Focus Adjustment"]
    B --> C["Increase or reduce to image size to sharpen image."]
    B --> D["Keystone Adjustment"]
    D --> E["Adjust image corners to reduce image distortion."]

Connecting Your Projector

HDMI

HDMI offers superior sound and picture quality, and is the easiest way to play media from a computer, Blu-Ray player, or other device with an HDMI output.

Requires an HDMI cable (not included) and a device with an HDMI output.

1. Using an HDMI cable, connect the HDMI 1 or 2 input on the projector to the HDMI output on your media player or computer.
2. Set the projector's Source to the connected HDMI input and use the controls on the connected device to select and play media.

graph TD
    A["HDMI Inputs"] --> B["Device"]
    B --> C["Connect to HDMI on Laptop or PC."]
    B --> D["Connect to HDMI on DVD, Blu-Ray, or other source."]
    B --> E["Server"]

Audio/Video Input

Requires a 3.5mm to RCA audio/video cable (included).

1. Connect the 3.5mm to RCA audio/video cable to the AV input on the unit.
2. Connect the 3.5mm to RCA audio/video cable to the RCA stereo audio outputs and composite video output on the media player.
3. Set the projector's Source to AV and use the controls on the connected player to select and play media.

Connect AV cable (included) to media player's AV outputs.

Audio Left Channel - White

Audio Right Channel - Red

Video - Yellow

Micro SD & USB Storage Devices

Supports Micro SD cards and USB drives up to 32GB.

Supports AVI, MOV file formats.

1. Load a USB drive into the USB Port.
2. Set the Source to Media Player, then use the Arrow buttons to select "C:Drive" or "D:Drive" (C:Drive is the SD card, D:Drive is the USB).
3. Use the Arrow buttons to select Music/Photo/Movie, then press the OK button to begin playing content from the connected storage device.

USB Port Micro SD Card Slot

Computer Video (VGA)

Note: VGA connections do not support audio. You will need to use the computer's speakers to hear audio. Requires a VGA cable (not included) and a desktop PC or laptop with a VGA output.

1. Using a VGA cable, connect the VGA input on the projector to the VGA output on your computer.
2. Set the projector's Source to PC and use the controls on the computer to select and play media.

graph TD
    A["PC with connected speakers"] -->|VGA Input| B["Laptop with built-in speakers"]
    B --> C["AC with connected speaker"]
    C --> D["Laptop with built-in speakers"]

The PJ308 has built-in full range speakers. However, you can also connect external speakers for more sound options.

Bluetooth - Pairing to Wireless Speakers or a Sound Bar

NOTE: Bluetooth is OFF by default when the projector first powers ON. Bluetooth can be turned ON or OFF from the OPTIONS Menu.

1. Enable Bluetooth on the external speakers, or sound bar (Bluetooth receiver) to which you wish to connect.
2. Power on the projector and make sure the projector's Bluetooth is ON (see note above). The projector will begin searching for nearby Bluetooth devices to connect to, and will automatically initiate pairing. Note: To eliminate confusion, disable Bluetooth on all receivers to which you do no wish to connect.
3. When successfully paired, the Bluetooth receiver should indicate it is connected, usually with a chime or tone. Check the user manual on your Bluetooth receiver for more information.
4. When successfully connected, the projector will display the Bluetooth receiver's (your speaker or sound bar) name on the top right portion of the Main Menu screen, and sound played from the projector will be heard through the Bluetooth receiver.

After initial pairing, the projector and the Bluetooth speakers will stay paired unless unpaired manually by the user, or erased due to a reset of either device. If this occurs or you find either unit is unable to connect, repeat the above steps.

Headphone Jack/Audio Out

Requires a 3.5 mm to RCA audio/video cable (included) or 3.5mm audio cable (not included).

Note: External speakers must have their own power supply.

1. Using a 3.5 mm to RCA stereo cable (included), connect the external powered speakers to the Headphone Jack on the projector.
2. The projector will automatically detect the connection and send audio signal to the speakers.

graph TD
    A["Speaker with two speakers"] --> B["Audio Left Channel - White Audio Right Channel - Red Video (Yellow) plug will NOT be used"]
    B --> C["Headphone Jack"]
    C --> D["Device with HDMI1, HDMI2, USB, AC, AV ports"]

Contact Information

Website: www.gpx.com

Email Support: [e-mail]

Email Parts: [e-mail]

Phone Support: 1-888-999-4215

Warranty

For Warranty Information and the most up-to-date version of this User's Guide, go to: www.gpx.com

International Support

To download this User's Guide in English, Spanish, and French, or to get answers to frequently asked questions, visit the support section at:

www.gpx.com

Protect for Today Sustain for Tomorrow

Copyright © 2019 Digital Products International (DPI, Inc.) All other trademarks appearing herein are the property of their respective owners. Specifications are subject to change without notice.