Read Sharp LC-17SH1E (serv.man2) Service Manual online
TROUBLESHOOTING GUIDE
E-2
THE PICTURE APPEARS, BUT
THE AUDIO DOES NOT
APPEAR. (AT RF MODE)
THE AUDIO DOES NOT
APPEAR. (AT RF MODE)
YES
NO
NO
YES
CHECK IC6601 AND
PERIPHERAL CIRCUIT.
PERIPHERAL CIRCUIT.
CONNECT SP301.
NO
CHECK IC301, IC302 AND
PERIPHERAL CIRCUIT.
PERIPHERAL CIRCUIT.
YES
NO
CHANGE TU4401.
IS SP301 CONNECTED ?
IS THERE SIGNAL ON
PIN 11 OF IC301 AND
IC302 ?
PIN 11 OF IC301 AND
IC302 ?
YES
NO
IS THERE SIGNAL ON
PIN 16 OF TU4401 ?
PIN 16 OF TU4401 ?
IS THERE SIGNAL ON
PINS 1 AND 4 OF
CP301 ?
PINS 1 AND 4 OF
CP301 ?
CHAGE SP301.
YES
CHECK IC6601 AND
PERIPHERAL CIRCUIT.
PERIPHERAL CIRCUIT.
IS THERE SIGNAL ON
PIN 67 OF IC6601 ?
PIN 67 OF IC6601 ?
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