SLV-D900E, SLV-D900G - Sony VCR Service Manual (repair manual). Page 72

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7-10
MISSING AUDIO
IC501-7, 69
AUDIO SIGNAL
IC501-26
AUDIO FM
CHECK 
CYLINDER
CHANGE IC501
CHECK
R815, R816, L809, L810, JC801
CHECK
(AUDIO MISSING
IN EE MODE)
AUDIO MISSING IN
REC MODE
MONO
HIFI
MONO
NO
NO
YES
YES
CHECK IC501 
5V AND 9V LINE
CHECK IC501-38, 39
(CLK, DATA)
NO
YES
(VCR Section)
CHECK 
Q3A03, Q3A02
CHECK 
R3A04
CHECK 
R373
IC301-15
AUDIO SIGNAL
IC501-4
AUDIO SIGNAL
NO
NO
NO
CHECK IC301-68, 69
CLOCK, DATA
CHECK 
C523, R512, R511
NO
NO
YES
NO
YES
YES
YES
YES
YES
YES
CHECK 
IC301-14, C3A02
IC301-12  AND CHANGE IC301
CHANGE IC501
IC301-11
AUDIO SIGNAL
IC301-100
AUDIO SIGNAL
IC301-5
MIX SIGNAL
(AUDIO+70KHz)
CN3A01-4
OSCILLATION
NO
CHECK (AUDIO MISSING
IN PB MODE)
CHECK
PB MODE
CHECK
ACE HEAD
MONO
YES
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