E-3
TROUBLESHOOTING GUIDE
Yes
A voice isn't though an image
appears
No
No
Yes
Whether does a signal
come to IC352 6th pin
or not?
Whether does a signal
come to IC601 1st pin
or not?
Investigate IC601 peripheral
circui.
Investigate IC4001 11th pin.
Yes
Yes
No
No
Is the voltage of IC352
1st pin DC 8.3V or not?
Investigate R517, D505 and
D509.
Investigate headphone jack
(J351) or a peripheral circuit.
Investigate a speaker.
Does a signal come to
CP351 6th pin or not?