Sony RDR-VX500 Service Manual page 123

Line2 CVBS Video Input Error
Pin 6 in IC801 No
Check the connection between
has nomal level?
pin 6 in IC801 and L2 pin-jack
(jack PCB)
Yes
Pin 21 in IC801 No
Check pin 62, 55 in IC801 of input power
has nomal level?
Yes
No
Pin80 in IC301 of sonata main Check the connection between pin80
in IC301 of sonata main PCB
PCB has nomal level?
Yes
Pin 40 and pin43~52 in
No
TIC1of main PCB has clock and
Check IC301 peripheral circuit
digital video signal nomal
level?
Yes
Change main PCB
Line2 S-Video Video Input Error
Pin 26, 28 in CN1
No
Check the connection between pin 26
has nomal level
and 28 in CN1 and L2 S- videojack
(jack PCB)
Yes
Pin9 and 18 in IC301 of No
Check the connection between pin9 and
sonata main PCB has
18 in IC301 of sonata main PCB
nomal level?
Yes
Pin 40 and pin43~52
No
in IC301 of sonata main PCB has clock
Check IC301 peripheral circuit
and digital video signal
nomal level?
Yes
Change main PCB