TOSHIBA SD-22VL
Diagrama del circuito

TROUBLESHOOTING GUIDE
THE AUDIO CAN NOT RECORD

NO Is bias level at L104 OK? YES

Is the voltage at pin 2 of L104 5V? YES

NO

Check POWER circuit.

Is the voltage at pin 29 of IC3001 about 5V?

NO Change IC3001.

L104 is broken or shorted.

Is there audio signal at pin 5 of CP102?

NO

Check the circuit between pin 4 of IC101 to pin 5 of CP102.

YES

Is there audio signal at pin 11 of IC101? YES

NO Change IC101.

Check lead wire of A/C HEAD and CONNECTOR.

E-19