Troubleshooting
Procedure2-2
Video CD blue back
No blue back
Troubleshooting
Procedure2-3
Video portion of video CD
No picture
Troubleshooting flowchart
Likely location of fault
Troubleshooting
Procedure2-4
Audio portion of video CD
No sound
Troubleshooting flowchart
Likely location of fault
Press the SELECT( ) button to start playback.
Press the STOP( )button to stop playback.
Load a video CD disc.
Does blue-back screen appear?
Is the following waveform present at pin of CN1000?
NO
NO
YES
NO
YES
YES
Normal
0.5V
0.5V
T=63.5 s
T=16.7 s
6.2V
T=0.5 s
Faults is in the main board
(video output block)
IC1000
Likely location of fault: IC1000
Is the following waveform present at pin of IC1000?
Audio signal line
IC1000
IC702
2
110
