Sony RDR-VX500 Service Manual page 117

Line1 CVBS Video Input Error
Pin4 in IC801
No
Check the connection between
has nomal level?
pin4 in IC801 and L1 pin-jack
(jack PCB)
Yes
No
Pin21 in IC801
Check pin 62, 55 in IC801 of input power
has nomal level?
Yes
No
Check the connection between pin80
Pin80 in IC301 sonata main PCB
in IC301 of sonata main PCB
has nomal level?
Yes
Pin40 and pin 43~52 in
No
TIC1 of main PCB has clock and
Check IC301 peripheral circuit
digital video signal
nomal level?
Yes
Check feed back