TROUBLESHOOTING GUIDE
E-2
THE PICTURE APPEARS, BUT
THE AUDIO DOES NOT
APPEAR. (AT RF MODE)
YES
NO
NO
YES
CHECK IC901 AND
PERIPHERAL CIRCUIT.
CONNECT CP4403 AND
CP4401.
NO
CHECK IC301 AND
PERIPHERAL CIRCUIT.
YES
NO
CHANGE TU001.
IS CP4403 AND
CP4401
CONNECTED ?
YES
NO
IS THERE SIGNAL AT
PIN 14 OF TU001 ?
CHANGE SP301.
YES
CHECK IC4201 AND
PERIPHERAL CIRCUIT.
IS THERE SIGNAL AT
PINS 3 AND 30 OF
IC301 ?
NO
CHECK IC302 AND
PERIPHERAL CIRCUIT.
YES
IS THERE SIGNAL AT
PINS 28 AND 30 OF
IC4201 ?
IS THERE SIGNAL AT
PINS 2 AND 4 OF
IC302 ?
IS THERE SIGNAL AT
PINS 1 AND 4 OF
CP4403 ?
