Sony RDR-VX511 Service Manual page 113

QQ
3 7 6 3 1 5 1 5 0
No audio on line input mode or
recorded disc playback
Check select signal of
pin44, 46, 56, 58 in IC801
(jack board)
Yes
Check pin56 of IC801,pin17
of CN1 in jack board
Yes
Check all the vcc of
IC501, IC502
(main board)
Yes
T E
L 1 3 9 4 2 2 9 6 5 1 3
Check passive components
around jack-pin and IC801
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No
check pin63, 64 (input select)of IC801
No
Check SMPS board
No
Replace main PCB
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y
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8
CVBS output error
Yes
24 pin in CN2
of Jack PCB has
normal level?
Yes
Analog signals are
inputed normally
VIC1
Yes
Power is
normal at VIC1-1,24, 34?
(jack PCB)
Q Q
Yes
3 7 6 3 1
Pin5,12 in VIC1 is
in LOW state?
Yes
Doos
the video signals is 1V level at
output jack?
Yes
Check the RCA cable
u 1 6 3
.
2 4
9 9 8
No
Check digital main PCB
No
Check the connection between
CN2 and VIC1
No
Check the connection between
VIC1-1 and power
5 1 5 0 8 9 2 4 9
Check the connection with
No
VCR Micom.
check VIC1 peripheral circuit
No
Check the connection between
VIC1 and output jack
m
c o
2
9 9
8 2 9 9