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DV-RW250H (serv.man2). (pages 1-75) - Sharp DVD Service Manual (repair manual). Page 71

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TROUBLESHOOTING GUIDE
E-33
NO PLAYBACK PICTURE
OF 21PIN JACK
Check IC4001
and peripheral circuit.
Is there VIDEO signal
at pin 117 of IC4001 ?
No
Yes
Is the waveform at pin
25 of IC8001 ?
No
Yes
Check IC8001
and peripheral circuit.
Check J8001
and peripheral circuit.
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