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5. Troubleshooting
When troubleshooting, make sure the disc is not dirty or warped.
Check all connection bettween VCD PCB and main PCB
Check all supply voltage (+8V,-8V,+5V,-5V)
5-1 No Video.(Video CD)
Check for C-Sync Signal
at pin 95 of VIC100
Check for waveform at
pin10 of VIC3
(Freg: 13.5MHz)
Check if waveform at pin 5,7.9
of VIC101 is varying when
playing VCD disc
Check for video signal at
pin2 of NIC101
Check for video signal at
pin7 of VIC5
Check VQ4,5
AND VCE23,24
Check Pattern or
SMD Type parts.
Samsung Electronics
YES
YES
YES
YES
YES
YES
NO
A
NO
Check VIC3
or Replace
NO
Check VIC101 or
Replace
NO
Check VIC4 or
Replace VIC4
NO
Check VIC5
or Replace
NO
Replace
5 Ð 1
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