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6. FAQ – Trouble shooting Interface functions
For any troubles which may occur, check the following table for a solution before requesting
support from your vendor.
Symptom
No picture/black picture
(factory picture).
No picture/black
picture/white picture
(inserted picture) but
factory picture is OK.
Inserted picture distorted,
flickering or running
vertically.
Camera input picture
flickers.
Camera input picture black.
Camera input picture has
distortion.
Not possible to switch
video sources by external
keypad.
Not possible to switch
video sources by external
keypad.
Interface does not switch to
camera input when reverse
gear is engaged.
Version 24.09.2019
All manuals and user guides at all-guides.com
Reason
Not all connectors have been
reconnected to factory head-
unit or monitor after
installation.
The ribbon cables have been
damaged
Not all connectors have been
reconnected to the head unit
and the monitor.
No power on video-interface
(daughter PCB)
No picture from video
source.
No video-source connected
to the selected interface
input.
Ribbon cable connection has
been reversed
Some interfaces can only
handle NTSC input.
Camera is being tested
under fluorescent light
which shines directly into the
camera.
Camera power taken directly
from reverse gear lamp.
Pressed too short.
The grey wire of the 6pin
cable doesn't receive the
+12V reverse signal
HW CAM(V98) / (V43)
Possible solution
Connect missing connectors.
Check the ribbon cables and the connectors,
Change if necessary.
Check the connectors and reconnect all
disconnected connections.
Make sure that the orange colored wire has been
connected to +12 V S-Contact.
Check on other monitor whether video source is
OK.
Make sure that the video source has been
connected to the according input.
Make sure that the ribbon cable connection is
done correctly:
"MONITOR OUT or TO LCD" to panel and
"TO PCB" to mainboard
Check manual whether there is a limitation to
NTSC mentioned. If yes, set source fixed to NTSC
output.
Test camera under natural light outside the
garage.
Use relay or electronics to "clean" reverse gear
lamp power. Alternatively, if CAN-bus box is
compatible with the vehicle, camera power can
be taken from green wire of 6pin to 8pin cable.
For video source switching a longer press of
about 2.5 seconds is required.
Apply +12V from the reverse light. Use a relay or
electronics to "clean" reverse gear lamp power.
RL4-UCON7-500
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