Table of Contents
Advertisement
9O-45 Cellular / Entertainment / Navigation / Audio:
6. If the noise is not eliminated, install the filter in each
following variation:
– Install the filter with the single wire side toward the
radio and the ground wire attached to chassis
ground.
– Remove the ground to the filter.
– Reverse the filter so the 2-wire side is toward the
radio with the ground wire attached to chassis
ground.
– Remove the ground from the filter.
7. If the filter GM P/N 1224205 causes a delay when
turning the radio ON or OFF, or other problems,
remove the filter and install a 0.47 micro farad
capacitor to chassis ground.
8. Before reassembling the vehicle, remove any
unneeded filters.
9. Test the functionality all of the vehicle systems for
proper operation and function.
Video Entertainment System
Troubleshooting Hints
Schematic Reference: "Radio/Navigation System
Schematics"
• Many conditions that affect video system operation
may be corrected without removing the radio, the
digital video disc (DVD) player or the video
entertainment overhead console from the vehicle.
Make sure to understand all features of system
operation before beginning the diagnosis of the
system. Verify the condition and follow the diagnostic
procedures in order to isolate and correct the
condition.
• Be sure the vehicle battery is fully charged before
beginning video entertainment system diagnosis.
Video or Audio Distortion
The manufacturing process for producing DVDs does
not have the same quality control processes in place that
compact disk manufacturing does. If there are video or
audio quality problems with an individual DVD, try
playing that disk in another DVD player. If the quality is
poor for both players, return the disk to the place of
purchase and request an exchange. If the quality
problem is only seen in one of the players, examine the
disk for scratches dirt or smudges and attempt to clean
the disk with one of the disk cleaning systems that are
commercially available.
Video or audio distortion during auxiliary playback can
often be attributed to the DC to AC inverter that is used
to power the auxiliary device. The power inverters tend
to introduce noisy signals into the vehicle electrical
system.
Video Entertainment System Wireless
Headphone Inoperative
NOTE
The following information lists the most
probable cause of the concern to the least
probable cause followed by the appropriate
test for that condition.
1. Volume control on the wireless headphone set is
turned all the way down. Adjust the volume control
on the headphones.
2. Dead batteries in the wireless headphone set. Turn
on power to the headphone set. If the headset
indicator does not turn on, replace the batteries in
the headset as needed.
3. Faulty headphone set. Test the operation of the
system using a known good headphone set. If
operation is OK, replace the vehicle headphone set.
Video Entertainment System Remote Control
Inoperative
The buttons on the video remote control do not operate
the video disc player but the buttons on the video disc
player operate normally.
NOTE
The following information lists the most
probable cause of the concern to the least
probable cause followed by the appropriate
test for that condition.
1. Dead batteries in the video remote control. Replace
the dead batteries.
2. Faulty remote control. Test the operation of the
system using a known good remote control. If
operation is OK, replace the remote control.
Discs Will Not Eject
1. Attempt to remove the CDs/DVDs from the radio by
pushing the "Eject" button on the radio. If there is a
"chatter" noise, go to step two. If there is no chatter
noise and the discs will not eject from the radio, send
the radio to your authorized Electronic Service
Center for repair.
2. Remove the radio from the Instrument Panel of the
vehicle but do not remove the electrical connectors.
Refer to "Radio Replacement".
3. Some versions of these radios have a 9.5 mm x 13
mm oval hole on the top cover of the radio, near the
back of the case. If the radio being serviced has this
hole, proceed to step four. Otherwise the radio will
need to be returned to your authorized Electronic
Service Center for repair.
4. Push the "Eject" button. While the discs are
attempting to eject, insert a plastic pen cap, or
similar plastic object into the hole to assist the top
disc out of the radio.
Advertisement
Table of Contents
Troubleshooting
