TROUBLESHOOTING GUIDE
NO PLAYBACK PICTURE
Check Power circuit.
No
Yes
Check 5V line.
Check IC4101 and the
connection of the CYLINDER.
No
Check Q4001,Q4016,Q4004 and
the peripheral circuit.
Is E-E appearing on the
Monitor TV?
Is there PB Y/C signal at
TP4002?
No
Yes
Is the voltage at pins 12,28
and 54 of IC4001 5V?
No
Yes
Check IC4002 and the
peripheral cicuit.
No
Replace IC4001.
Replace IC4001.
No
No
Yes
Is there Y signal at
pin 27 of IC4001 and there
CHROMA signal at pin
31 of IC4001?
Is there VIDEO signal at
pin 2 of IC4001?
Yes
Is there Y signal at
pin 9 of IC4002 and there
CHROMA signal at pin
16 of IC4002?
Yes
Yes
Check J4501
Is there FM Y signal at
pin 11 of IC4001and there
CHROMA signal at pin
27 of IC4001?
E-18