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TROUBLESHOOTING GUIDE
E-12
CHANGE IC4001.
NO
NO
YES
YES
YES
NO
DOES THIS HAVE
SIGNAL AT PINS 3 AND
5 OF CD703 ?
DOES THIS HAVE
SIGNAL AT PINS 7 AND
8 OF IC8502 ?
DOES THIS HAVE SIGNAL
AT PINS 113, 115, 116
AND 118 OF IC4001 ?
NO SOUND DVD/CD
ANALOG AUDIO.
REFER TO "LCD SECTION".
CHECK PINS 7 AND 8 OF
IC8502 AND PERIPHERAL
CIRCUIT.
CHANGE IC8502.
CHANGE IC4001.
NO
YES
YES
NO
DOES THIS HAVE
SIGNAL AT PIN 1 OF
CD703 ?
DOES THIS HAVE
SIGNAL AT PIN 110
OF IC4001 ?
NO SOUND DVD/CD
DIGITAL AUDIO.
CHECK IC4001 AND
PERIPHERAL CIRCUIT.
CHECK J4202 AND
PERIPHERAL CIRCUIT.