Sanyo DC-TS3000 Service Manual page 46

TROUBLE SHOOTING GUIDE
Hi-Fi AUDIO
CAN NOT RECORD
Does E-E AUDIO appear?
YES
AT state of video recording,
is there audio signal at
pin 11 and 73 of IC701?
YES
Is there audio signal at
pin 78, 80 of IC701?
YES
At recording and play,is
there signal at pin 7, 8
and 9 of CP101?
YES
Check IC701.
NO
NO
NO
NO
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Refer to section "E-E AUDIO
(MONO) DOES NOT APPEAR".
Check circuit arounf of J651,
J652 and TU301.
Change IC701.
Check CYLINDER UNIT.