Sony RDR-VX410 Service Manual page 121

Line1 CVBS Video Input Error
Pin4 in IC801
No
Check the connection between
has nomal level?
pin4 in IC801 and L1 Scart-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 pin12
Pin12 in IC1001 DVD main PCB
in IC1001 of DVD main PCB
has nomal level?
Yes
Pin45 and pin 54~62 in
No
IC1001 of DVD main PCB has clock and
Check IC1001 peripheral circuit
digital video signal
nomal level?
Yes
Check feed back