Audiovox MMD154 Car Video System User Manual


 
9
TROUBLESHOOTING
SYMPTOM: REMEDY:
No power at Video Monitor -Verify +12 VDC on Red wire at Yellow wire Power Harness behind
video monitor. Verify ground connection with continuity test from
known good ground to black wire at Power Harness
Power but no video or sound -Verify that the correct source is selected (DVD, AV 1 or AV 2). Verify
that the source is on and playing known good media. Verify con-
nections at both ends of the source component harness.
Picture, but no sound -Verify that the headphones are turned on; check headphone batter-
ies
-Verify that power is available to the FM Modulator; make sure modu-
lator is tuned to the correct FM station