Sony RDR-VX500 Service Manual page 115

AUDIO MISSING IN
(VCR Section)
EE MODE
(VCR Section)
VCR STOP MODE
IC801-44, 46,
L1/L2
INPUT CHOICE
56, 58pin Audio
MODE
signal input
TUNER
NO
IC4M01-57pin
AUDIO SIGNAL
CHECK C4M28
INPUT
YES
NO
CHECK CHECK CLK, DATA
IC601 IC4M01-37, 38pin
YES
NO IC4M01-51 pin
IC4M01-78, 80 pin
3.58MHz
AUDIO SIGNAL
YES
Change
CHECK NO
IC4M01
IC801-48, 60 pin
C4M43, C4M44,
AUDIO SIGNAL
R4M16, R4M17
YES
CHECK
C821, C827
CHECK
NO
C819, C820,
C825, C826
YES
NO
CHECK
C4M47
YES
AUDIO MISSING IN
(VCR Section)
REC MODE
CHECK
AUDIO MISSING
IN EE MODE
MONO
MISSING AUDIO
MONO
HIFI
NO
IC501-9, 71
CHECK
AUDIO SIGNAL
R523, R524, R525, R511
YES
NO
IC501-37, 38
CHECK
CLK, DATA
R509, R510
YES
NO
IC501-78, 80
CHANGE
AUDIO SIGNAL
IC501
YES
NO
IC501-26
CHECK
AUDIO FM
C511, R506 CHANGE IC501
YES
CHECK CYLINDER