Toshiba SD-V340SC Service Manual page 92

TROUBLESHOOTING GUIDE
NO PLAYBACK PICTURE
OF AV JACK
Is there a voltage
(beam current) at
JG017 and JG018?
NO
Is there a signal at pins
160, 162, 165 and 167
of IC4001?
NO
Is there video signal at
pin 150 of IC4001?
NO
Change IC4001.
YES
YES
YES
E-30
Check loader block.
Check CP2301
and peripheral circuit.
Check Q8020
and peripheral circuit.