Sony RDR-VX521 Service Manual page 125

Line1 CVBS Video Input Error
Check JK801
(Video input signal)
Yes
Check IC808
(Pin # 26)
Yes
Check IC808
(Pin #86 ~ #88, #93~97)
Yes
1. Check VCC of IC201 and peripheral
parts of Clock oscillation
(IC302 Pin #1, 2, 14)
2. Refer to the " CVBS output error"
No
Check peripheral parts of JK801
No 1. Check VCC and peripheral parts of
IC808 and QM2.
Check VCC of IC201 and peripheral
No
parts of Clock oscillation
(Pin #66, 67) of IC808
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