Toshiba SD-22VB Service Manual page 81

THE AUDIO CAN NOT
RECORD
Is bias level at L104 OK?
YES
Is there audio signal
at pin 5 of CP102?
YES
Is there audio signal
at pin 11 of IC101?
YES
Check lead wire of A/C HEAD
and CONNECTOR.
TROUBLESHOOTING GUIDE
NO
Is the voltage at pin 2
of L104 5V?
YES
Is the voltage at pin 29
of IC3001 about 5V?
L104 is broken or shorted.
NO
NO
NO
Check POWER circuit.
NO
Check the circuit between
pin 4 of IC101 to pin 5 of
CP102.
E-19
Change IC3001.
Change IC101.