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TROUBLESHOOTING GUIDE
D-4
NO PLAYBACK PICTURE OF AV
JACK
Check LOADER BLOCK.
Is there a voltage
(beam current) at
JG008 and JG009 ?
Yes
No
Is there video signal at
pin 33 of IC7301 ?
Change IC7301.
No
Yes
No
Yes
Check J7302 and peripheral
circuit.
Is there a signal at
pin 164 of IC4001 ?
Check IC4001 and
peripheral circuit.