Service manual

TROUBLESHOOTING GUIDE
E-29
NO PLAYBACK PICTURE OF
YUV JACK
Is there Y signal at
pin 108 of IC4001 ?
Yes
No
Check CP7302 connection
to CP8302.
Yes
No
Check IC4001 and
peripheral circuit.
Is there Y signal at
pin 14 of CP8302 ?
Check J8003 and
peripheral circuit.
Yes
No
Is there Y signal at
pin 2 of IC8008 ?
Check IC8008 and
peripheral circuit.
NO COLOR PLAYBACK
PICTURE OF YUV JACK
Yes
No
Yes
No
Check IC4001 and peripheral
circuit.
Is there U & V signals
at pin 16 and 18 of
CP8302 ?
Is there U &V signals at
pin 97 and 107 of IC4001 ?
Check CP7302 connection
to CP8302.
Check J8003 and
peripheral circuit.
Yes
No
Is there U signal at
pin 2 of IC8012 and
V signal 2 of IC8013 ?
Check IC8012 and IC8013
and each peripheral circuit.