Audiovox | VOH681 | Installation guide | Audiovox VOH681 Installation guide

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Important Notice
Safety Precaution
It is unlawful in most jurisdictions for a person to
drive a motor vehicle which is equipped 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 driver while operating the vehicle.
In the interest of safety, the VOH681/VOH681P
should never be installed where it will be visible,
directly or indirectly, by the operator of the motor
For safety reasons, when changing video tapes it is
recommended that the vehicle is not in motion, and
that you do not allow children to unfasten seatbelts
to change tapes or make any adjustments to the
system. System adjustments can be accomplished
using the remote control unit, while seatbelts remain
fastened. Enjoy your Audiovox entertainment system
but remember-safety of all passengers remains the
number one priority.
Please note that the state of Rhode Island forbids
the installation of such a device in a motor vehicle.
Congratulations on your purchase of the Audiovox
VOH681/VOH681P drop-down Video Monitor. The
VOH681/VOH681P has been designed to give you
and your family many years of video entertainment in
the mobile environment. Please read the directions
that follow to familiarize yourself with the product and
to ensure that you obtain the best results from your
Please note: Installation options vary, see the
individual owner’s manuals for each component in
your system to obtain a full understanding of each
component’s operation.
♦ 6.8” TFT (Thin Film Transistor) Active
Matrix LCD (Liquid Crystal Display)
♦ IR transmitter for Wireless Headphones
♦ Remote Sensor Eye
♦ Three Audio/Video Inputs
♦ Headphone Amplifier
♦ Two Headphone Jacks for Wired
♦ Built-in Dome Lights
♦ Backlit Controls for Low Light Operation
♦ Push button screen Brightness Controls
Front Panel
1. Infrared Transmitter - Used to transmit audio
to wireless headphones
2. Power button – (Bright red when system is On,
dim when Off)
3. Volume Up/Down – Controls volume to
headphone jacks and external speakers if
4. Source Select – used to select one of the three
A/V sources.
5. Source indicator LEDs - Indicate the current
video source
6. Sensor Eye – Receives signals from infrared
remote controls and relays them to remote
mounted equipment.
7. Three position Dome Light Switch
• Auto – Automatically switches on the dome
lights in conjunction with the vehicle’s interior
• Off – The Dome lights will not turn on in this
• On – Turns on the Dome lights.
8. Dome lights – provide additional illumination
9. Screen Release – Slide in direction of arrow to
release the flip down screen
10. Headphone Jacks – allows plug-in of two wired
headphones with 1/8” stereo jack.
11. Auxiliary A/V Stereo Input – allows plug-in of
camcorder, game, portable DVD player or other
A/V source with RCA type output connectors.
12. Brightness Up/Down Control - use the
brightness up/down buttons to adjust the picture
brighter or darker.
Turning the VOH681/VOH681P On or Off
1 Sliding the screen release lock forward will unlock
the LCD screen and it will drop down slightly. Pivot
the screen downward until a comfortable viewing
angle is reached. The internal friction detent will
hold the screen in position while the system is in
2 Pressing the power button on the pod will turn the
system on or off alternately. When in use the internal
backlighting will illuminate the controls.
3 After the unit has been turned on and is displaying
a picture, adjust the viewing angle and brightness
controls to optimize the picture quality.
4 Remember to turn the unit off and pivot the LCD
to the locked position when not in use.
Overhead Dome Lights
The lights integrated into the VOH681/VOH681P are
controlled by a three position slide switch. 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’s 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
Remote Sensor
The VOH681/VOH681P incorporates an infrared
sensor which relays signals from any infrared remote
control to allow a remote mounted device to be
controlled simply by pointing its remote control at the
remote sensor eye mounted on the pod. This
provides control of auxiliary equipment such as Video
Cassette and DVD players. The infrared sensor can
relay signals from any manufacturer’s remote control
to its respective component connected to the AV1 or
AV2 inputs.
Sensor eye
Optional Accessories
External Auxiliary A/V Stereo inputs (Aux )
These inputs are provided to facilitate the temporary
connection of optional audio / video equipment, such
as a camcorder or video game system. They can be
accessed by removing their protective plastic cover
located behind the LCD hinge. To play a source with
these inputs, use RCA patch cord to connect the audio
/ video signals to their respective jacks. Mono audio
sources will require the use of an RCA Y cable
(PN 0892165) to connect to both right and left inputs.
Once the connections have been made, turn the
VOH681/VOH681P on and press the source selector
button on the pod until the “AUX” indicator LED
illuminates. The unit will now play the audio and video
signals from the accessory connected.
Auxiliary A/
V Stereo
Wired Headphones
There are two 1/8” headphone jacks on the VOH681/
VOH681P that can be used with any standard stereo
headphones. These jacks are controlled by the
volume up / down buttons on the VOH681/VOH681P
or the remote control. Remove and save the
protective plastic cover to access the jacks.
Remember to replace the cover when the jacks are
not in use
Wireless Headphones
The VOH681/VOH681P includes a built in infrared
transmitter for use with Audiovox wireless
headphones (PN MVSWHS). Turning the headphone
switch on, and wearing them activates the internal
micro switch which will activate the internal IR receiver
and the volume can then be adjusted separately with
the controls on each headset. Any number of wireless
headphones can be used, but all must be within a
line of sight from the transmitter, as infrared
transmissions, like visible light travel only in a straight
line. See the documentation accompanying your
Audiovox wireless headphones.
Wired FM Modulator
Your video system may be equipped with an RF
modulator, that allows you to listen to the VOH681/
VOH681P’s audio signal by tuning your vehicle’s radio
to the selected frequency, (88.7 or 89.1 - Check with
your installer) and turning on the remote mounted
RF modulator switch. (In most cases this toggle
switch will be located underneath the driver’s side of
the dash, check with your installer for the exact
location.) Whenever the RF modulator is on,
broadcast radio reception will be poor. Turning the
remote mounted toggle switch off will allow normal
radio reception.
Video Output
The VOH681/VOH681P provides a video output for
an optional video monitor(s). (Refer to page 7 of the
installation guide for more details.) This output will
provide a video signal that duplicates the signal
displayed by the VOH681/VOH681P to an additional
monitor or video display. Please see your installer
for more information.
Audiovox Video Cassette Player (AV1)
In most installations a VCP will be connected to the
“AV1” input. To view a video cassette, turn the
VOH681/VOH681P On and press the source button
on its control pad until the “AV1” indicator LED
illuminates. The VCP may also be operated with a
remote or the buttons on its face. The VOH681/
VOH681P is now ready to play the audio and video
signals from the VCP if it is connected to the “AV1”
input. Inserting a tape into the VCP will automatically
turn it on and activate the play mode. If a rewound
tape had already been loaded into the VCP, prior to
its activation, press play on the VCP or on the remote
control to view the tape. For more information see
the operator’s manual accompanying your VCP.
The second video input may be connected to a DVD
player, video game system, or other audio / video
input. To play the AV2 source, turn the VOH681/
VOH681P on and press the source button on the pod
until the “AV2” indicator LED illuminates. Turn the
source component on with its power button or remote
control. The VOH681/VOH681P is now ready to play
the audio and video signals from the source
connected to AV2 inputs.
v Do not use any solvents or cleaning materials
when cleaning the video system.
v Do not use any abrasive cleaners, they may
scratch the screen. Use only a lightly dampened
lint free cloth to wipe the screen if it becomes dirty.
v Lock the LCD screen in the fully closed position
when not in use.
v Before putting on headphones always adjust the
volume setting to the lowest position.
v Remember to leave the dome light switch in the
off or auto positions when the vehicle is
unattended, as the dome lights, if left on, can drain
the vehicle’s battery.
v Do not put pressure on the LCD screen.
v Caution children to avoid touching or scratching
the screen, as it may become dirty or damaged.
Poor radio
reception (FM
• Check the condition of the
IR sensor
Replacement Parts
Protective Plastic Cover
Optional Audiovox VCP Remote Control 0993000
vehicle’s radio antenna.
• Verify that the antenna is fully
• If a wired RF modulator has
been installed, verify that its
switch is turned to the off
LCD Backlighting
• Verify that the batteries in the
Edge Light Tube
1152 x 234
suspect remote are fresh.
• Verify that the remote repeater
eye is not obstructed.
• Verify that the infrared
transmitter is affixed over the
sensor eye of the component
to be controlled
Operation Temperature
Storage Temperature
Expected Backlight Life
Video Display System
Audio Output
© Copyright 2000 Audiovox Corp., 150 Marcus Blvd., Hauppauge, NY 11788
0 - 40º C
-20 - 80º C
10,000 Hours
0.1W @ 16 Ω
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