Read Sharp LC-17SH1E (serv.man2) Service Manual online
TROUBLESHOOTING GUIDE
E-3
THE PICTURE DOES NOT
APPEAR (1).
APPEAR (1).
NO
YES
CHECK THE CONNECTED
OF CP3803 AND THE
VOLTAGE OF PINS 6, 7 AND
8.
OF CP3803 AND THE
VOLTAGE OF PINS 6, 7 AND
8.
CONNECT CD7201.
NO
YES
IS CD7201 CONNECTED ?
DOSE BACK LIGHT SHINE ?
YES
NO
CHANGE V2301.
IS THERE SIGNAL
AT IC7201 ?
AT IC7201 ?
CHANGE IC7201.
IS THERE SIGNAL AT
PINS 5, 6, 8, 9, 11, 12, 14,
15, 17 AND 18 OF
CD7201 ?
PINS 5, 6, 8, 9, 11, 12, 14,
15, 17 AND 18 OF
CD7201 ?
YES
NO
CHECK IC801.
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