Clarion OHM643 User Manual

6.4” LCD  
Color Monitor  
OWNER’S MANUAL  
OWNER’S MANUAL  
In extremely cold temperatures, the movement of the picture may be slow  
and the picture may be dark, but this is not a malfunction. The set will work  
normally once the temperature increases.  
Small black and shiny dots inside the liquid crystal panel are normal for liquid  
crystal product.  
DESCRIPTION  
The OHM643 is a TFT active matrix color LCD monitor that delivers a striking pic-  
ture and superior image resolution. The OHM643 can be used to enjoy video  
images with the Clarion video sources, even if no TV tuner is connected.  
PACKAGE CONTENTS  
6.4" monitor  
5m long cable with 5 male connectors (A/V, Power/Ground, 3.5mm IR)  
50cm 2pin power cable  
Mounting Gasket  
Mounting Bracket  
Hardware  
Owner's Manual  
Warranty Card  
BUTTON AND CONNECTOR LOCATIONS  
3
5
4
1
2
6
9
7
8
1
2
3
4
5
Dome Light Switch  
Monitor Release Button  
Picture Select Up  
Picture Select Down  
IR Sensor  
6
7
8
9
Lamp Power Cord (brown)  
Lamp Ground Cord (grey)  
Lamp Door Cord (white)  
8 Pin DIN Pigtail  
2
OHM643  
WIRING PRECAUTIONS  
Read all wiring precautions. If you are not sure of the connections, contact your  
authorized Clarion dealer.  
1. Disconnect the negative (-) lead of the battery before making any power  
connections.  
2. When creating passage holes for the power wires, use grommets to elimi-  
nate any sharp edges created during drilling. This will protect the wire from  
being nicked and causing a short circuit.  
3. When connecting the ground lead, fasten the ground lead (black) securely to  
a clean metal plate on the vehicle.  
NOTE: The OHM643 monitor displays video images only. It does not provide  
audio output. Refer to the owner's manual of the connected device for informa-  
tion on audio output.  
8 Pin DIN Mini Connector  
1
2
3
4
5
6
7
8
DC 12V  
IR Out  
DC 12V Ground  
Video Input  
A/V Signal Ground  
Audio R Input  
ACC Control  
Audio L Input  
50CM POWER CABLE  
POWER CONNECTOR  
IR REMOTE OUT  
AUDIO R INPUT  
AUDIO L INPUT  
VIDEO INPUT  
Lamp Door Cord (brown)  
Lamp Gnd Cord (grey)  
Lamp Power Cord (white)  
3
OWNER’S MANUAL  
INSTALLATION  
The OHM643 is an overhead, fold-down 6.4" monitor with an Infrared (IR) eye. It  
will accept a video signal from any video source with composite video out. The  
IR eye will work directly with any Clarion video source product with an IR Eye  
Input.  
1. Look over the vehicle for a location for the monitor. Each vehicle is different  
and locations will vary. Make sure the monitor will not interfere with the driver.  
2. Once a location has been determined, connect the IR, A/V RCAs and power  
cables to the designated sources.  
3. Screw the bracket to the headliner. Use short screws so as not to damage the  
roof.  
4. Plug the cable into the monitor's 8 Pin Din connector. Mount the monitor with  
the provided hardware.  
Head Liner  
Mounting  
Bracket  
B
R
IG  
H
T
PICTURE ADJUSTMENT  
To adjust the picture brightness, use the Brightness UP and DOWN buttons  
located on the front panel of the OHM643. Press the UP button to increase the  
picture brightness. Press the DOWN button to decrease the picture brightness.  
CARE AND MAINTENANCE  
Cleaning the cabinet:  
Use a soft, dry cloth to gently wipe off any dirt.  
Do not use benzene, thinner, car cleaner, etc., as these substances may  
damage the cabinet or cause the paint to peel.  
Cleaning the LCD panel:  
Use a soft, dry cloth to gently wipe off any dust.  
The surface is easily scratched; do not rub it with hard objects.  
4
OHM643  
SPECIFICATIONS  
GENERAL SPECIFICATIONS:  
Power Requirement:  
Power Consumption:  
Weight:  
DC 12V (9-16V)  
0.8A Max. (0.8A or Less)  
2.2 lb. (1.0kg)  
Dimensions:  
9.1" x 12.7" x 1.9"  
(230 x 322 x 48mm) (W x H x D)  
+5˚ ~ +40˚ C.  
Extension Cable with (male connectors  
A/V Input, Power Connector, 3.5mm IR  
Remote Out), Mounting Gasket, Mounting  
Bracket, Screws 2pin Power Cable  
Operation Temperature:  
Supplied Accessories:  
MONITOR SPECIFICATIONS:  
Display Type:  
Screen Size:  
Pixels:  
Color TFT Active Matrix LCD  
6.4" (Actual Panel Size)  
960 x 234  
Screen Resolution:  
Video System:  
224,640 Dots  
NTSC/PAL  
5
OWNER’S MANUAL  
NOTES:  
6
Clarion Co., Ltd.  
OHM643-10 Rev.0 (11/00)  

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