Clarion OHM 720 OHM720 User Manual

7” LCD Color Monitor  
8” LCD Color Monitor  
OWNER’S MANUAL  
OWNER’S MANUAL  
1. PRECAUTIONS  
l The set is for use in DC 12V, negative ground vehicles.  
l Do not operate the set in ways other than described in this guide.  
Doing so may damage it and voids your warranty.  
l SAFETY FIRST! For rear seat use only. Do not install in dashboard or  
anywhere else that would permit monitor to be viewed by the driver.  
Monitor must never be used in any manner that will distract driver or  
interfere with the driver's safe operation of the motor vehicle.  
l Be careful not to run down the car battery while using the set with the car  
stopped.  
l Do not disassemble or modify the set. Doing so may damage it and voids  
your warranty.  
l Keep drinks and drops from umbrellas away from the set.  
Water may damage the internal circuitry.  
l Do not let the set become hot. If temperature in the car is high or the set  
has been exposed to direct sunlight and is hot, lower the temperature  
before using it. (The liquid crystal panel will work properly within a  
temperature range of 14°F - 144° F).  
l 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.  
l Small black and shiny dots inside the liquid crystal panel are normal for  
liquid crystal product.  
2. DESCRIPTION  
The OHM720/OHM820 is a TFT active matrix color LCD monitor that delivers a  
striking picture and superior image resolution. The OHM720/OHM820 can be  
used to enjoy video images with the Clarion video sources, even if no TV tuner  
is connected.  
3. PACKAGE CONTENTS  
DESCRIPTION  
Q’TY  
LCD Monitor  
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2
1
1
2
1
1
1
5
1
IR Headphones (WH100H)  
Universal Trim Ring  
IR Remote Control  
A/V Din Cables  
TV Input Ribbon Cable  
FM Modulator Din Cable  
Power Connector  
M3X8 Screws  
Manual/Installation Guide  
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OHM720, OHM820  
4. MONITOR BUTTON FUNCTIONS  
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2
3
4
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6
7
8
9
Monitor Release Button  
Dome Light Switch  
Power Button  
Channel Select Up  
Channel Select Down  
Mode Selector  
FM Modulator On/Off Button  
Auxiliary Input Selector  
Power LED  
10 IR Sensor  
5. DESCRIPTION OF IR REMOTE CONTROL  
Button Functions  
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OWNER’S MANUAL  
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2
3
4
5
6
7
Power Button for Monitor  
Powers on monitor  
TV/Video Button  
Switches between A/V1, A/V2, TV.  
FM Modulator Button  
Turns FM Modulator ON/OFF.  
Auto Memory Button for TTX001 (TV Tuner)  
Locks channels with good reception.  
Channel Up for TTX001 (TV Tuner)  
Changes TV channels up.  
Channel Down for TTX001 (TV Tuner)  
Changes TV channels down.  
Picture Select Button for Monitor  
Goes into picture mode menu for Monitor to select Contrast, Brightnesss, Color,  
Tint and Wide Screen Mode.  
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9
Picture Mode Up Button  
Adjusts selected picture mode.  
Picture Mode Down Button  
Adjusts selected picture mode.  
10 TV Tuner/VCR Button for VDH910 (VCR)  
Changes input source selection from VCR to TV Tuner.  
11 Enter Button for VDH910 (VCR)  
Toggles between selection of the On-Screen Menu choice.  
12 Menu Button for VDH910 (VCR)  
Displays the On-Screen Menu, or changes and exits the On-Screen Menu.  
13 Power Button for VDH910 (VCR)  
Powers the unit ON or OFF.  
14 FF Button for VDH910 (VCR)  
Press FF to fast forward the tape.  
15 Play Button for VDH910 (VCR)  
Press button to play the videocassette.  
16 REW Button for VDH910 (VCR)  
Press REW to rewind the tape.  
17 Skip Button for TTX001 (TV Tuner)  
Will skip through channels with no reception.  
18 Shift Button for TTX001 (TV Tuner)  
Changes menu selection.  
19 Stop Button for VDH910 (VCR)  
Press to stop any play, fast forward, or rewind mode.  
20 Still/Slow Button for VDH910 (VCR)  
Press once to pause for STILL frame. Press again to advance frame by  
frame. Press and hold button for SLOW motion playbacks.  
21 Channel Track DOWN Button for VDH910 (VCR)  
In TV Tuner mode, changes TV Channels down.  
22 Channel Track UP Button for VDH910 (VCR)  
In TV Tuner mode, changes TV Channels up.  
4
OHM720, OHM820  
6. USING REMOTE CONTROL  
Inside the vehicle, simply aim the IR Remote Control directly at the OHM720/  
OHM820, or at a Clarion monitor, or video source with an IR eye input and  
press any desired button for better results. Also note the following:  
l Aim the IR Remote Control from no further than 7 feet away and no more  
than 3 feet on either side of the sensor.  
l Direct sunlight or very bright light will reduce sensitivity to the IR remote  
signal commands. Be sure the monitor is not located in direct sunlight.  
l Objects between the monitor will interfere or block IR remote signal  
commands.  
7. INSERTING THE BATTERIES  
1. Locate the battery compartment on the back of the IR Remote Control.  
2. Remove the battery holder and insert two AAA alkaline batteries matching  
polarity as shown inside the battery holder.  
3. Snap the battery holder back into the remote unit until it locks with a click.  
8. 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  
eliminate 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 wire)  
securely to a clean metal plate on the vehicle.  
NOTE: The OHM720/OHM820 monitor displays video images only. It does not  
provide audio output. Refer to the owner's manual of the connected device for  
the information on audio output.  
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OWNER’S MANUAL  
9. INSTALLATION INSTRUCTIONS  
The OHM720/OHM820 is an overhead, flip-down 7"/8” 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. Run necessary wires to the mounting location. When necessary cut the  
headliner and pull wires through.  
3. Use a 12"W x 12"L x ½" or ¾" thick piece of plywood to mount the  
OHM720/OHM820.  
4. Silicone the piece of plywood to the top of the roof or screw the plywood to  
the dome light mounting assembly and or the roof support rail.  
5. Once the plywood has been mounted, connect the IR, power and DIN  
cables to the designated sources.  
6. Make sure all wires and DIN cables are way from screws when drilling.  
7. Screw the monitor and universial pod assembly (factory pre-assembled)  
into the plywood using 4 wood screws (not supplied). Use the shortest  
screws possible to prevent roof penetration.  
6
OHM720, OHM820  
10. DOME LIGHT WIRING  
Negative Trigger Door Switch  
Brown: + 12V  
Positive Trigger Door Switch  
Brown: Ground  
Gray: Ground  
Gray: + 12V  
White: Door Switch  
White: Door Switch  
11. DOME LIGHT ON/OFF SWITCH DESCRIPTION  
A three-position slide switch controls the lights integrated into the OHM720/  
OHM820. Sliding the switch to the ON position will turn the lights on. The  
OFF position will prevent the lights from turning on at all times, and the auto  
position will allow the lights to turn on and off with the vehicle interior lighting.  
Do not leave the vehicle unattended with the dome light switch in the ON  
position, as this could result in a discharged battery.  
12. DIN CABLE PIN LAYOUT  
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OWNER’S MANUAL  
13. PICTURE ADJUSTMENT  
To adjust the picture use the mode button to select the mode feature you  
would like to adjust. Adjustment selections are as follow:  
l Contrast  
l Brightness  
l Color  
l Wide screen ON/OFF (OHM720 only)  
l Tint  
Press the up button to increase and the down button to decrease.  
14. FM MODULATOR (FM200) SYSTEM DIAGRAM  
8
OHM720, OHM820  
15. TV TUNER (TTX001) INSTALLATION INSTRUCTIONS AND SYSTEM  
DIAGRAM  
1. Insert the tuner into the back of the OHM720/OHM820.  
2. Plug the ribbon cable into the back of the OHM720/OHM820. Connect  
another side of this cable to the TV Tuner (TTX001)  
3. Screw the tuner down to the existing tuner holes.  
4. Screw on the Clarion TV Tuner antenna ZCB001 OR ZCB003  
(not included).  
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OWNER’S MANUAL  
16. COMPLETE A/V SYSTEM DIAGRAM  
10  
OHM720, OHM820  
17. CARE AND MAINTENANCE  
Cleaning the cabinet  
l Use a soft, dry cloth to gently wipe off any dirt.  
l 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  
l Use a soft, dry cloth to gently wipe off any dust.  
l The surface is easily scratched; do not rub it with hard objects.  
18. SPECIFICATIONS  
General Specifications  
Power Source:  
Car Battery (DC 9-16V)  
Power Consumption:  
Max Current Consumption:  
OHM720 Dimensions:  
DC 12V 15W (without Dome lights)  
Less than 1.5A (without Dome lights)  
8-1/2" x 11-3/4" x 1-3/16" (W x H x D)  
216 x 300 x 31.5 mm (W x H x D)  
9-1/8" x 13-3/16" x 1-3/16" (W x H x D)  
232 x 336 x 31.5 mm (W x H x D)  
3 lb (1.4 kg)  
OHM820 Dimensions:  
OHM720 Weight:  
OHM820 Weight:  
3.5 lb (1.6 kg)  
Operating Temperatures:  
14°-140° F  
Monitor Specification  
Display Type  
Color TFT Active Matrix LCD  
OHM720 Display Screen size 7.0"  
OHM820 Display Screen size 8.0"  
Format  
1440 x 234  
Screen Resolution  
Video Signal  
Video System  
336,960 dots  
1Vp-p with 75-ohm load  
Auto NTSC/PAL  
11  
OWNER’S MANUAL  
19. WARRANTY INFORMATION  
This product is warranted against all defects in material workmanship for a period of one  
year from the date of original purchase. Clarion Multimedia products are covered by a  
one-year warranty when installed by an authorized Clarion dealer. The conditions of this  
warranty and the extent of responsibility of Clarion Corporation under this warranty are as  
follows:  
1. PROOF OF DATE OF PURCHASE WILL BE REQUIRED FOR WARRANTY SERVICE  
OF THIS PRODUCT. IN CASE OF 1-YEAR WARRANTY FOR CLARION MULTIMEDIA  
PRODUCT, PROOF OF INSTALLATION BY AUTHORIZED DEALER IS REQUIRED.  
INFORMATION ABOUT CLARION AUTHORIZED WARRANTY SERVICE CENTERS  
MAY BE OBTAINED BY CONTACTING OR WRITING CLARION CORPORATION AT  
THE ADDRESS LISTED BELOW.  
2. This warranty will become void if service performed by anyone other than an approved  
Clarion Warranty Service Center results in damage to product.  
3. This warranty does not apply to any product which has been subject to misuse, neglect  
or accident, or which has had the serial number altered, defaced or removed, or which has  
been connected, installed, adjusted or repaired, other than in accordance with the instruc -  
tions furnished by Clarion Corporation.  
4. This warranty does not cover car static or other electrical interferences, tape head  
cleaning or adjustments, or labor costs for the removal or reinstallation of the unit for  
repair.  
5. The sole responsibility of Clarion Corporation under this Warranty shall be limited to the  
repair or replacement thereof, at the sole discretion of Clarion Corporation.  
6. If it becomes necessary to send the product or any defective part to Clarion  
Corporation or an authorized warranty service station, the product must be shipped in its  
original carton or equivalent carton, fully insured, with shipping charges prepaid. Clarion  
Corporation will not assume any responsibility for any loss or damage incurred in shipping.  
7. ALL IMPLIED WARRANTIES EXCEPT TO THE EXTENT PROHIBITED BY APPLICA-  
BLE LAW SHALL HAVE NO GREATER DURATION THAN THE WARRANTY PERIOD  
SET FORTH ABOVE. UNDER NO CIRCUMSTANCES SHALL CLARION CORPORATION  
BE LIABLE FOR ANY LOSS OR DAMAGE, DIRECT OR CONSEQUENTIAL, ARISING  
OUT OF THE USE OR INABILITY TO USE THE PRODUCT. BECAUSE SOME STATES  
DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS OR  
EXCLUSIONS OR LIMITATIONS OF INCIDENTAL OR CONSEQUENTIAL DAMAGES,  
THE ABOVE LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO YOU.  
8. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO  
HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.  
9. For instructions on how to obtain warranty service, please call 1-800-GO-CLARION or  
in your area, or contact the Clarion Customer Service Manager at the address listed  
below:  
Clarion Corporation of America  
Attn: Customer Service Manager  
661 W. Redondo Beach Blvd  
Gardena, Ca. 90247-4201  
12  
661 West Redondo Beach Blvd.  
Gardena, CA 90247  
1-800-GO-CLARION  
OHM720-820 Rev.0 (12/01)  

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