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Troubleshooting:

Symptom:

No power at Video Monitor

Power but no video or sound

Picture, but no sound

Static on TV Stations (Tuner
Version Only)

No Infrared remote func-
tions for VCP (or other com-
ponents)

Remedy:

-12 VDC on Red wire at 2 pin Power Harness behind video moni-
tor.  Verify  ground connection with continuity test from known good ground
to black wire at 2 pin Power Harness

-Verify that the correct source is selected (i.e.: 1,2,3 or 4).  Verify that the
source is on and playing a known good media (such as a videotape).  Verify
connections at both ends of the source component harness.

-Push and hold the volume up button until sound is heard over headphones.
If problem is limited to the dash radio, verify radio is tuned to the correct
channel, and that power to the wired RF modulator is on.  (Refer to instruc-
tions with modulator kit).  Otherwise, verify all connections per the wiring
diagram on p5 and p6.

-Press Auto Program button.  Then press CH up or CH down.  Verify an-
tenna mounting and connections to the tuner.
Note: Due to the nature of TV signals, vehicle motion, direction the vehicle
is facing, distance from the transmitter, nearby surroundings and weather
may adversely affect TV reception.  These conditions may result in the
following: picture roll, "snowy" picture, or momentary loss of color.

-Check batteries in the hand held remote (not included with this kit).  Verify
that the IR LED ( p6 or p7 Wiring Diagram) is property attached to the
sensor window of the VCP (or other component).

-9-

Negative Switched Dome lighting

To 12 pin

connector

on Monitor

To

constant

+12vdc

To

constant

+12vdc

Factory Door ajar
switch or Body
Control computer

Factory Dome light circuit

Red / black - Lamp on
Black / red - Lamp common
Purple / brown - Lamp Auto

Summary of Contents for VOH-641

Page 1: ...VOH 641Drop Down Video Monitor VOH 642 Drop Down TV Video Monitor Installation Guide OPEN AUTO ON OFF ...

Page 2: ...d with a television viewer or screen that is located in the motor vehicle at any point forward of the back of the driver s seat or that is visible directly or indirectly to the operator of the motor vehicle Please note that the state of Rhode Island forbids the installation of such a device in a motor vehicle ...

Page 3: ...OH 642 only 8 Protective Cover for External A V Inputs P N 1023336 1 3e 3 2 3 3a 3f 3d 3e 3c 3b 3 5 6 4 3c CHOKE TOOLS REQUIRED 2 Phillips Screwdriver 1 Phillips Screwdriver Utility or Razor Knife or Shears Wire Strippers Upholstery hook tool for removal of panels as necessary Electrical Tape Masking Tape Multimeter to verify 12 volt DC and continuity Do not use a test light or logic probe Marker ...

Page 4: ...e been permanently mounted 8 After verifying proper operation of the system proceed to mount of each component 9 When all components are mounted recheck function of entire system again to ensure that no wiring was pinched or connected improperly during final installation GENERAL SYSTEM CONFIGURATIONS The following is intended to give a rough guideline of system configurations that are possible wit...

Page 5: ...e and installation method Some of the steps that may be required are A Removal of the vehicle s dome light B The headliner may need to be trimmed as per the drawing below C If the mini console PN 1181300 will be used it will have to be trimmed to fit the contour of the vehicle s headliner Refer to the Mini Console installation section later in this manual Note If your installation will require you...

Page 6: ...masking tape to the outer surface of the mini console in the areas where the cut will be made 3 Mark the cut to follow the necessary contour of the roof The suggested method of marking is as follows A First mark the narrowest point of the mini console on the masking tape Be careful to consider not only vertical location but fore aft location B Using the handle of a screwdriver make a transfer mark...

Page 7: ...oof support Headliner 5 x9 x3 4 Plywood Block 4 8x1 self drilling screws not supplied Mini Console Video unit 4 8 Flat washers not supplied 4 8x3 4 self tapping screws not supplied 5 MOUNTING THE MINI CONSOLE ...

Page 8: ...he main PCB as in steps 2 and 3 above A V Source Definitions 1 VCP Right Mini Din on main PCB 2 2nd VCP or game or DVD etc left Mini Din 3 Aux Input RCA jacks on the face of the monitor 6 Red RCA Audio Right IR LED Clean the IR Receiver Window on the front of the VCP Remove Adhesive Backing and Apply IR LED to IR Window on the Face of the VCP Black Ground Optional Remote Headphone Stations Stereo ...

Page 9: ...ws on PCB Cover Open the cover to gain access to Mini Din Connector on main PCB Cover will remain attached at to rivet hole 3 Insert the Circular Mini Din Connector of the source Component Harness through the wire tie loop on the main PCB and into the Mini Din Connector on the main PCB 4 Pull the wire tie loop tight and cut off the excess 5 Connect the Power Harness to the mating connector on the ...

Page 10: ...itched system with all the doors closed and the lights out both wires at the dome light will rest at 12vdc When the light is activated one of these wires will switch to ground This is the switching wire For positive systems connect the purple brown Lamp auto wire to the vehicle s switched wire Then connect the red black lamp on wire to a fused constant 12 volt source and the black red lamp common ...

Page 11: ... to the wired RF modulator is on Refer to instruc tions with modulator kit Otherwise verify all connections per the wiring diagram on p5 and p6 Press Auto Program button Then press CH up or CH down Verify an tenna mounting and connections to the tuner Note Due to the nature of TV signals vehicle motion direction the vehicle is facing distance from the transmitter nearby surroundings and weather ma...

Page 12: ...128 5533C 1999 Audiovox Corp 150 Marcus Blvd Hauppauge NY 11788 ...

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