Toshiba SD-V340SC Service Manual page 90

Hi-Fi AUDIO
CAN NOT RECORD
Does E-E AUDIO appear?
YES
At state of video recording,
is there audio signal at
pins 7,9,69 and 71 of IC701?
YES
Is there audio signal at
pins 78 and 80 of
IC701?
YES
At recording and play, is
there signal at pins 7, 8
and 9 of CP101?
YES
Check IC701.
TROUBLESHOOTING GUIDE
NO
NO
NO
NO
E-28
Refer to section "E-E AUDIO
(MONO) DOES NOT APPEAR".
Check circuit around of J651,
J652,J8002 and TU301.
Change IC701.
Check CYLINDER UNIT.