Installation guide
Copyright 2011 All Rights Reserved
AV7900 Installation Guide GC1018 Rev A
Page 9
The DVD restarts when the vehicle is started
When the vehicle is started, the DVD should resume from previous point. However, if the voltage falls below
10VDC during cranking, the system will restart at the beginning of the DVD.
Solution: Check if the battery is fully charged. New vehicles rarely have a fully charged battery.
Solution: Older batteries can not provide the necessary voltage during an engine cranking.
Vehicle battery may need replacement.
Solution: Extreme climate conditions (cold or hot) will reduce the efficiency of the battery. Be sure
the battery is fully charged and in good condition. Replace the battery if needed.
The System Stays On and Never Shuts Off
The System is designed to turn off when the key is turned off. If the ACC (Red) wire is connected to a
constant 12VDC (+) power point the system will system will stay on until the battery dies.
Solution: Check the ACC connection point to be sure it is switched with the key, and relocate as
needed.
No headphone audio
The Headphone audio should be preset at all times, unless the MUTE is set to on, or a DVD Setting has
been changed in the DVD Settings Menu.
Solution: Press the MUTE Button to enable the audio and turn the MUTE OFF.
Solution: Confirm the headphones have fresh batteries, are turned on, and the ON LED Indicator
is Illuminated.
Solution: Check the DVD Setting and restore them to FACTORY SETTINGS if needed (see the
Owners Manual).
Selecting FMM pre-sets
For best operation, the FMM Pre-set selection should be on a station which is not in use or has weak
broadcast in your area.
Solution: You can also check www.RosenDealerCentral.com. This site provides you with the best
stations in your local area. Select a corresponding FMM Station when available.
Reducing audio or video noise
Audio or video noise may be induced into the system from sources ranging from harness location, power
point to poor grounding.
Solution: Re-route the wire harnesses to avoid passing over other harnesses or near electrical
motors.
Solution: Try relocating the ground point to factory ground point or factory ground wire.
Solution: In some cases, inline audio filters may be required. Contact Rosen for support on
selection of a filter.
Missing Channel B Audio
System includes a monitor A and monitor B. Monitor A is channel “A” on headphones and monitor B is
channel “B” on headphones. If audio is not present, check the following.
Solution: Check A/B switch on headphones.
Solution: Check all cable connections
Solution: Please refer to “Install Set-up Menu”.
Solution: Force channel B via Installer Setup menu










