R4N75NNU - Tracking ORION - Free user manual and instructions

Product Type	GPS Tracking Device
Model	R4N75NNU
Brand	Orion
Dimensions	85 x 55 x 25 mm
Weight	120 g
Power Supply	Rechargeable Li-ion battery, 3.7V 1000 mAh
Battery Life	Up to 72 hours in normal mode, 7 days in standby
Connectivity	GSM/GPRS (850/900/1800/1900 MHz)
GPS Accuracy	< 5 meters (open sky)
Tracking Frequency	Configurable from 10 seconds to 24 hours
Functions	Real-time tracking, geofence alerts, speed alerts, SOS button
SIM Card Required	Standard SIM (not included)
Water Resistance	IP65
Operating Temperature	-20°C to 60°C
Installation	Magnetic mount or adhesive
Compatible Platforms	iOS, Android, Web portal
Languages Supported	Multi-language (including English)
Accessories Included	USB cable, magnetic bracket, user manual

Frequently Asked Questions - R4N75NNU ORION

How do I activate the Orion R4N75NNU tracker?

Insert a standard SIM card with data plan, then power on the device. It will automatically connect to the network. Use the dedicated app or web portal to register and enter the device IMEI.

What is the battery life of the R4N75NNU?

The battery life depends on usage. In standard tracking mode (1-minute updates), it lasts up to 72 hours. In power-saving mode with less frequent updates, it can last up to 7 days.

Does the tracker require a subscription?

Yes, you need an active SIM card with a data plan (GPRS) for transmission. Some providers also offer cloud-platform subscriptions for advanced features. No subscription is required for the device itself.

How do I set up geofence alerts?

Log in to the app or web portal, go to the geofence settings, and draw a virtual boundary on the map. You will receive notifications via email or app when the device enters or exits the area.

Is the Orion R4N75NNU waterproof?

The device has an IP65 rating, meaning it is dust-tight and protected against low-pressure water jets. It is not designed for submersion.

How can I check the device's location history?

Access the web portal or app, and navigate to the playback/history section. You can select a date range to view past routes and positions.

What should I do if the tracker stops updating?

First, check the SIM card for active data and sufficient credit. Ensure the device has a clear view of the sky (GPS) and is within network coverage. Try resetting the device by turning it off and on.

Can I use the tracker internationally?

Yes, it supports quad-band GSM frequencies, so it works in most countries. Ensure your SIM card has roaming enabled and a data plan suitable for international use.

How do I install the R4N75NNU in my vehicle?

Choose a hidden location with good GPS reception (e.g., under the dashboard). Use the magnetic mount or adhesive to secure the device. Connect the power cable if hardwiring, or use the internal battery for portable tracking.

What are the dimensions of the device?

The Orion R4N75NNU measures 85 x 55 x 25 mm and weighs 120 grams, making it compact and easy to conceal.

USER MANUAL R4N75NNU ORION

1 SAFETY INSTRUCTION 3
2 FCC RF INTERFERENCE STATEMENT 7
3 INSTALLATION 8
4 OSD MENU SETTING 13
5 SPECIFICATION 21
6 R4N COMMANDER (Video Wall Control Protocol) 24
7 TROUBLESHOOTING 35
8 LIMITED WARRANTY 35

[ USER MANUAL ]

1. SAFETY INSTRUCTION

\- Follow this safety instruction to use the monitor properly and prevent the damage. \* This safety instruction has "Warning" & "Caution" as below  Warning - If the user does not follow this instruction, it may cause the serious damage to the user.  Caution - If the user does not follow this instruction, it may cause the slight damage to the user or cause some damages to the monitor. \- Keep this user's guide book for later use. 

Warning

Never remove the back cover and touch the inside of the monitor. If you need a service, please contact the service center.  Keep away the monitor from the direct sunlight and a heating appliance. 

Cartoon illustration of a sad computer monitor with a smiling face, emitting exhaust smoke from a steaming machine (no text or symbols)

[USER MANUAL]


Warning

Do not install this monitor on the outside and near water. It may cause damage to the product, electric shock and fire.  For cleaning do not use liquid cleaners. Never touch the power plug with wet-hands.  When lightning and thundering, unplug the monitor from the wall outlet and never touch it. 

Cartoon illustration of a computer monitor character with a sad face and lightning bolts, next to a broken cable (no text or symbols)

Unplug this product from the wall outlet, when it does not operate for a long time.  When smoking and noising from the monitor, unplug the product from the wall outlet and contact a service center.

[USER MANUAL]


Cautions

Install this monitor some distance from the wall and do not install unless proper ventilation is provided.  Place this product on a stable place. If not, it may fall, causing serious damages to the monitor and people.  The openings must not be blocked by curtain, rug or other similar surface.  When carrying this monitor, be careful not to damage the panel and drop it. It may cause some trouble.  Before carrying the monitor, turn it off and Take the power plug out from the wall

[USER MANUAL]


Cautions

Install this monitor about 50cm far from the eyes and an angle of 0\~15 degrees below eyes. Too close installation may cause having weak sight.  Do not press the LCD panel with hands or the sharpened material hardly.  For cleaning, unplug the monitor from the wall outlet. Do net use the liquid cloth. Use the soft cloth.    Do not use the chemical liquid for cleaning. It may cause fading and breakage.  WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO BAIN OR WATER

[ USER MANUAL ]

2. FCC RF INTERFERENCE STATEMENT

NOTE

This equipment has been tested and found to comply with the limits for a Class A 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. - Only shielded interface cable should be used. Finally, any changes or modifications to the equipment by the user not expressly approved by the grantee or manufacturer could void the users authority to operate such equipment. [ USER MANUAL ]

3. INSTALLATION

3.1 UNPACKING

Remove the package cover and place the product on a flat and secure surface or in the installation location. This equipment should be unpacked and handled with care. If an item appears to have been damaged in shipment, notify the shipper immediately. Check whether all the following device and accessories are included with the main system. If any items are missing, notify your Sales or Customer Service Representative.

3.2 PARTS

 LCD Monitor & Keypad  Joint Bracket(2EA) & BHMS M4x8 BK(8EA)  Power Cable    HTO Cable, DB Cable, HDMI Cable

[ USER MANUAL ]

3.3 KEYPAD

1) KEYPAD CONTROLLER  if you want to replace with a longer cable Please purchase separately \*Depending on the product model type, there may be variations in appearance.

OSD KEY FUNCTION
EXIT MENU	On/Off the OSD menu or exit the source selection menu
▼SOURCE	Move the cursor the choose on the OSD menu
	Select the source on the INPUT menu
	Move up the cursor to choose on the OSD menu

[USER MANUAL]

3.4 CONNECTION


Row of electronic component icons including buttons, capacitors, and connectors (no text or labels visible)

① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ ⑫ ⑬ ⑭ ⑮

1	VGA VGA signal input
2	DVI	DVI signal input
3	HDMI1	HDMI signal Input
4	HDMI2	HDMI signal Input
5	HDMI3	HDMI signal Input
6	DP IN	DP signal input
7	USB	FW Update Input
8	DP OUT	DP signal output
9	Audio	Audio Line Output

[USER MANUAL]

3.5 CONFIGURE THE VIDEO WALL

1. You can combine two or more monitors, and configure the VIDEO WALL. 2. If you want to configure VIDEO WALL, please contact your dealer or a professional installer. 3. JOINT BRACKET helps to easily adjust the VIDEO WALL (Supplied with monitor) 4. Using a JOINT BRACKET can help to prevent distortion or sagging due to weight, But may not be available in an installation environment where there is no space behind the product. \* Assemble the JOINT BRACKET using four M4 screws.  CABLE CONNECTION \*Chla connection order, it may be different  [USER MANUAL]

3.6 REMOTE CONTROLLER


POWER Power On or Off
MUTE Turn on or off	the speaker
VIDEO1/CVBS1 Not functional
VIDEO2/CVBS2 Not functional
S-VIDEO Not functional
VGA Select VGA signal
AUTO Auto adjustment of VGA source
COLOR TEMP Select color temperature of screen
DVI Select DVI signal
HDMI	Select HDMI signal(HDMI1→HDMI2→HDMI3)
DP Select DP signal
HDMI2/CAMERA Not functional
SDI Select SDI signal(Not functional)
S.SET Not functional
SCAN MODE Select scan mode of screen
PIP	Activate PIP mode

[USER MANUAL]

4. OSD MENU

4.1 Main OSD Menu

Press a menu button "MENU/EXIT" on a KEYPAD or a remote controller to display this menu on the screen.  [USER MANUAL]

4.3 Image


ITEM FUNCTION	Default Value	Available Mode
Brightness Adjust a bright value between 0 ~ 100 80

[USER MANUAL]

4.4 Color


ITEM FUNCTION		Default Value	Available Mode
Color	Select the color Temperature	Normal All

[USER MANUAL]

4.5 Multi-Window

 Please note that while using Multi-Window function, HDMI1 and HDMI3 can't be selected simultaneously. (In this case, an error may occur)

ITEM FUNCTION	Default Value	Available Mode
PIP Type Select a PIP mode Off, PIP, PBP, 3 Window or 4 Window Off All

[USER MANUAL]

4.6 Video Wall


ITEM FUNCTION		Default Value	Available Mode
Set ID Adjust the Set ID value between 1 ~ 99 99			All
Video Wall Enable Set Off or On to enable a video wall mode ON
Position	Set the sequence of installed monitors on the video wall situation(1 ~ 81)	1
H Ratio	Set the total number of horizontally installed monitors on the video wall situation(1 ~ 01)	1

[USER MANUAL] 4.6.1 Position numerical order

1	2	3	4
5	6	7	8
9	10	11	12
13	14	15	16

4.7 VGA

 [USER MANUAL] 4.8 OSD 

ITEM FUNCTION		Default Value	Available Mode
Horizontal	Adjust a horizontal position of the main menu between	95

[USER MANUAL]

4.9 SYSTEM


ITEM FUNCTION		Default Value	Available Mode
Language	Select a language type of OSD Menu.	English

[ USER MANUAL ]

5. SPECIFICATION

5.1 General Specifications

Model Name R4N43NNU R4N55NNU R4N65NNU
Bezel Width BEZEL to BEZEL 15.8 / 20.4(H/V) 18.8 / 21.4(H/V) 18.8 / 21.4(H/V)
Display	Screen Size (Inch) 42.51" 54.64" 64.53"
	Resolution 3840 x 2160 3840 x 2160 3840 x 2160
	Pixel Pitch (mm) 0.2451 x 0.2451 0.315 x 0.315 0.372 x 0.372
	Brightness 500 cd/m2 500 cd/m2	500 cd/m2
	Contrast Ratio	1000:1	1100:1	1100:1
	Aspect Ratio	16:9	16:9	16:9
	Viewing Angle (H/V)	178/178	178/178	178/178
	Display Color	1.07 billion	1.07 billion	1.07 billion
	Response Time	8 ms	8 ms	8 ms
	Video System	NTSC/PAL	NTSC/PAL	NTSC/PAL
Interface	*DP In / Out	1 / 1	1 / 1	1 / 1
	*HDMI In	3	3	3
	DVI In / VGA In	1	1	1
	RS-232 In/Out	1/1	1/1	1/1
	USB(FW UPDATE)	1	1	1
	Audio Out	1	1	1
	Remote Control	Y	Y	Y
Special Features	RS-232 Control	Monitor OSD & Multi Vision	Monitor OSD & Multi Vision	Monitor OSD & Multi Vision
	Deinterlacing	Y	Y	Y
	Auto Pixel Shift Y	Y	Y
	One Stretch Image by Edge Set	Y	Y	Y

[ USER MANUAL ] 5.2 Timing Mode Table

MODE Resolution		Vertical Frequency(Hz)	Input Standards
EDTV 480p 720x480 59.94			D-SUB/HDMI/DP	EIA-861B
EDTV 576p 720x576 50.00
HDTV720p 1280x720 50/60
HDTV1080i 1920x1080 50/60 HDMI/DP
HDTV1080p 1920x1080 24/25/30/50/60 D-SUB/HDMI/DP
UHDTV2160p 3840x2160 24/25/30 HDMI/DP
UHDTV2160p 3840x2160 50/60		DP
VGA	640x480	60/72/75	D-SUB/HDMI/DP	VESA
SVGA	800x600	56/60//72/75	D-SUB/HDMI/DP	VESA
XGA	1024x768	60/75	D-SUB/HDMI/DP	VESA
WXGA	1280x720	60	D-SUB/HDMI/DP	VESA
WXGA	1280x800 59.9	D-SUB/HDMI/DP VESA
WXGA	1366x768 59.8	D-SUB/HDMI/DP VESA
SXGA	1280x1024	60/75	D-SUB/HDMI/DP	VESA
FHD	1920x1080	60	D-SUB/HDMI/DP	VESA
UXGA	1600x1200	60	D-SUB/HDMI/DP	VESA

[USER MANUAL]

5.3 Video Wall RS232 Assignment / Specification

- D-SUB 9 pin- Input: Female, bottom position	Pin No. Name		Input
	1 n/c
	2	Tx
	3	Rx
	4	NC
	5 GND
	6 n/c
	7 n/c
	8 n/c
	9 5V(option)

- D-SUB 9 pin- Output: Male, top position	Pin No. Name
	1 n/c
	2	Rx
	3	Tx
	4	NC
	5 GND
	6 n/c

[ USER MANUAL ]

6. R4N COMMANDER (Video Wall Communication Protocol)

This document defines all the command and messages exchanged between the Master (a PC or the other controller) and the Slave (the displays). It also describes the ways to send or read the commands or the messages.

6.1 Protocol definition

VWCP stands for "Video Wall Communication Protocol". The protocol is specifically designed to allow data communication in half duplex multi-point environments, but it can also be used for full duplex point-to-point RS-232C communication.

6.2 Communication characteristics

A half-duplex communication is implemented starting from the concept of a master-slave structure, where the display is supposed to be the slave. The first action is always taken by the master, which can be either a PC or any controlling device (acting as server) interfaced to the monitor. After sending a command or a request in the appropriate format the master receives from the slave an acknowledgement, which tells the transmitter whether the command is not valid (or not executable, anyway) or it is accepted. In case of a request, the requested information is sent back and it becomes the acknowledgement by itself.

6.3 How to connect an external equipment(PC ↔ Monitor)

Female Pin number Male Pin number

[ USER MANUAL ]

6.5 Transmission Formats

This is the format that the computer will send to the display to execute commands. The format for this command transmission is as follows: \- Data Length: 13 byte Ex) 001PWRWOFF0 (Set ID: 1, "Power Off" Send)

STX ID

1 ID2 ID3

CM1 CM

2 CM3 R/W DA1

DA2 DA3

IND ETX

0x0f

0

0

1

P

W

R

W

O

F

F

0

0x0d

Hex

ASCII (capital letter)

Hex

- STX: Start of Text (0x0f) - ID1 \~ ID3: Set ID (001\~100) - CM1 \~ CM3: Command (PWR, MIN, MUT, RML, KPL...) - R/W: Read/Write - DA1 \~ DA3: Data (Values) - IND: Index - ETX: End of Text (0x0d)

[ USER MANUAL ]

6.6 Command List (Write)(PC ↔ Monitor)

Power On/Off (PWR)

STX ID	1 ID2 ID3	CM1 CM	2 CM3 R/W DA1	DA2 DA3	ND ETX
0x0f P	W R W O	0x0d
Hex	ASCII (capital letter)										Hex

- ID1 \~ ID3: Set ID ("001" \~ "100") - DA1 \~ DA3: "-ON": Power On "OFF": Power Off Ex) 001PWRWOFF0 (Power Off) Remote Control Lock On/Off (RML)

STX ID

1 ID2 ID3

CM1 CM

2 CM3 R

W DA1

DA2 DA3

ND ETX

0x0f

R

M

L

W

0

0x0d

Hex

ASCII (capital letter)

Hex

- ID1 \~ ID3: Set ID {"001" \~ "100"} - DA1 \~ DA3: "-ON": Lock On "OFF": Lock Off Evi-ESTV-001RMI ONIO-ESTVs (Lock On)

[ USER MANUAL ]

Line Shift On/Off (LIN)

STX ID

1 ID2 ID3

CM1 CM

2 CM3 R/W DA1

DA2 DA3

IND ETX

0x0f L

IN W

0

0x0d

Hex

ASCII (capital letter)

Hex

- ID1 \~ ID3: Set ID ("001" \~ "100") - DA1 \~ DA3: "-ON": Line shift On "OFF": Line shift Off Ex) 001LINW-ON0 (Line Shift ON) Mute On/Off (MUT)

STX ID

1 ID2 ID3

CM1 CM

2 CM3 R

W DA1

DA2 DA3

ND ETX

0x0f

M

U

T

W

0

0x0d

Hex

ASCII (capital letter)

Hex

- ID1 \~ ID3: Set ID {"001" \~ "100"} - DA1 \~ DA3: "-ON": Mute On "OFF": Mute Off Ex) 001MUTW-ON0 (Line Shift ON) Source Change (MIN)

STX ID1 ID2 ID3

CM1 CM

2 CM3 R/W DA1

DA2 DA3

ND ETX

[ USER MANUAL ]

Virtual Remote Control (RMT)

STX ID	1 ID2 ID3	CM1 CM	2 CM3 R/W DA1	DA2 DA3	IND ETX
0x0f R	M T W 0	0x0d
Hex	ASCII (capital letter)										Hex

- ID1 \~ ID3: Set ID ("001" \~ "100") - DA1 \~ DA3: "MEN" (Menu) "50U" (Source) "LEF" (Left & Volume-) "RIG" (Right & Volume+) "ENT" (Enter) "-UP" (Up) "DOW" (Down) "EXI" (Exit) Ex) 001RMTWSOU0 (Remote Source Button) Horizontal Set Count (HSC)

STX ID

ID2 ID3

CM1 CM

2 CM3 R

W DA1

DA2 DA3

ND ETX

0x0f

H

S

C

W

0

0x0d

Hex

ASCII (capital letter)

Hex

[ USER MANUAL ]

Vertical Set Count (VSC)

STX ID

1 ID2 ID3

CM1 CM

2 CM3 R/W DA1

DA2 DA3

IND ETX

0x0f V

S C W

0

0x0d

Hex

ASCII (capital letter)

Hex

- ID1 \~ ID3: Set ID ("001" \~ "100") - DA1 \~ DA3: "001" \~ "100" Ex) 001VSCW0100 (V-Set Count 10) Horizontal Edge Adjust (HEG)

STX ID

ID2 ID3

CM1 CM

2 CM3 R

W DA1

DA2 DA3

ND ETX

0x0f

H

E

G

W

0

0x0d

Hex

ASCII (capital letter)

Hex

- ID1 \~ ID3: Set ID {"001" \~ "100"} - DA1 \~ DA3: "000" \~ "200" Ex) 001HEGW0300 (H-Edge Adjust 30)

Vertical Edge Adjust (VEG)

[ USER MANUAL ]

Display Sequence (SDS)

STX ID	1 ID2 ID3	CM1 CM	2 CM3 R/W DA1	DA2 DA3	IND ETX
0x0f S	D S W 0	0x0d
Hex	ASCII (capital letter)										Hex

- ID1 \~ ID3: Set ID ("001" \~ "100") - DA1 \~ DA3: "001" \~ "100" Ex) 001SDSW0010 (Display Sequence 1) Color Temperature Change (CTC)

STX ID1 ID2 ID3	CM1 CM	2 CM3 R	W DA1	DA2 DA3	ND ETX
0x0f CT	C W 0	0x0d
Hex	ASCII (capital letter)										Hex

- ID1 \~ ID3: Set ID {"001" \~ "100"} - DA1 \~ DA3: "COL": Cool "MED": Medium "WAR": Warm "USE": User "US2": User2 "US3": User3 Ex) < STX>001CTCWMED0 (Color Temp Change Medium)

[ USER MANUAL ]

Contrast Adjust (FCC)

STX ID

1 ID2 ID3

CM1 CM

2 CM3 R/W DA1

DA2 DA3

IND ETX

0x0f

F

C

C

W

0

0x0d

Hex

ASCII (capital letter)

Hex

- ID1 \~ ID3: Set ID ("001" \~ "100") - DA1 \~ DA3: "000" \~ "100" Ex) 001FCCW0400 (Contrast Adjust 40) Red Gain Adjust (FGR)

STX ID1

ID2 ID3

CM1 CM

2 CM3 R

W DA1

DA2 DA3

ND ETX

0x0f

F

G

R

W

0

0x0d

Hex

ASCII (capital letter)

Hex

- ID1 \~ ID3: Set ID ("001" \~ "100") - DA1 \~ DA3: "000" \~ "100" Ex) 001FGRW0400 (Red Gain Adjust 40) Green Gain Adjust (FGG)

STX

ID1

ID2

ID3

CM1

CM2

CM3

R/W

DA1

DA2

DA3

IND

ETX

[ USER MANUAL ]

Blue Gain Adjust (FGB)

STX ID

1 ID2 ID3

CM1 CM

2 CM3 R/W DA1

DA2 DA3

IND ETX

0x0f F

G B W

0

0x0d

Hex

ASCII (capital letter)

Hex

- ID1 \~ ID3: Set ID ("001" \~ "100") - DA1 \~ DA3: "000" \~ "100" Ex) 001FGBW0400 (Blue Gain Adjust 40) Red Offset Adjust (FOR)

STX ID

ID2 ID3

CM1 CM

2 CM3 R

W DA1

DA2 DA3

ND ETX

0x0f

F

O

R

W

0

0x0d

Hex

ASCII (capital letter)

Hex

- ID1 \~ ID3: Set ID {"001" \~ "100"} - DA1 \~ DA3: "000" \~ "100" Ex) 001FORW0400 (Red Offset Adjust 40) Green Offset Adjust (FOG)

STX

ID1

ID2

ID3

CM1

CM2

CM3

R/W

DA1

DA2

DA3

IND

ETX

0x0f

F

O

G

W

0

0x0d

Hex

ASCII (capital letter)

Hex

[ USER MANUAL ]

6.7 Command List (Read)

Edge Item Read Command (PC → Monitor) 001SDSR0000 Edge Item Read Data (Monitor → PC)

STX

Set ID

ID

Sequence

H Count

V Count

H Gap

V Gap

ETX

0x0f E

0 0 0 0 x0d

Hex

Color Item Read Command (PC → Monitor) 001CTCR0000 Color Item Read Data (Monitor → PC)

STX

Set ID

ID

Bright

Contra

Color Temp

Red Gain

Green Gain

Blue Gain

Red Offset

Green Offset

Blue Offset

ETX

0xOf C

0x0d

Hex

[ USER MANUAL ]

Model Info < New > Read Only (PC → Monitor)

STX ID	1 ID2 ID3	CM1 CM	2 CM3 R/W DA1	DA2 DA3	IND ETX
0x0f M	D L R O	0x0d
Hex	ASCII (capital letter)										Hex

Model Info Data (Monitor → PC)

STX

Set ID

ID

MDL1

MDL2

MDL3

PNL1

PNL2

VER1

VER2

VER3

VER4

ETX

0x0f

'1'

0

0x0d

Hex

- MDL1 \~ MDL3: model type - PNL1 \~ PNL2: panel size - VER1 \~ VER4: FW version

→ RNK OLD VERSION: No Response

Ex) RNK New Version

STX

Set ID

ID

MDL1

MDL2

MDL3

PNL1

PNL2

VER1

VER2

VER3

VER4

ETX

0x0f

‘I’

‘R’

‘N’

‘K’

0x00

0x00

0x00

0x00

0x00

0x01

0x0d

Hex

[ USER MANUAL ]

7. TROUBLESHOOTING

When the following troubles are occurred, follow the trouble shooting. Before contacting a service center.

Troubleshooting Troubleshooting	Tip
The screen doesn't show up	1. Make sure if the power supply is connected property
	2. Turn on the power.
	3. Select the input signal right for the connected port.
The screen is too light or to dark Control the BRIGHTNESS
The screen size is not fit for the PC signal	Press the AUTO key among keys in the front. (It's used only in the PC signal)
The screen color shows strange in the PC signal	In the FUNCTION menu of OSD menu, perform the AUTOADJUST

8. LIMITED WARRANTY

All products carry a limited warranty from ship date against defects in materials and workmanship. We are not liable for improper installation that results in damage on mounts, adapters, display equipment or personal injury.