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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