Toshiba FD-9839 Service Manual page 22

8. The voice of the caller cannot be recorded.
Check hearing the OGM
when push OGM key.
OK
When 1 kHz -20dBm sine
waveform is applied to TEL-
line of the base, can the sine
wave be seen at pin 13 of
J402?
OK
Can the sine wave be seen
at pin 39 of IC402?
OK
Check around IC402 and
IC408.
9. Outgoing message cannot be transmitted to other party.
Can the voice wave be seen
at pin 36 of IC402 when OGM
key is pressed?
OK
Can the voice wave be seen
at pin 15 of J402?
OK
Check TEL network primary
circuit.
NG
Check around IC402 and
IC408.
NG
Can the sine wave be seen
at C29?
Check around IC2.
NG
Check around IC402.
NG Check around IC402 and
IC408.
NG
Check around Q402.
23
NG
OK
Check TEL network primary
circuit.