6-10
Pin21 in CN4
has nomal level?
(jack PCB)
Check feed back
Check the connection between
AVJ1 pin-jack
No
No
No
Pin10 in IC1001 digital main PCB
has nomal level?
Pin45 and pin 54~62 in
IC1001 of main PCB has clock and
digital video signal
nomal level?
Check the connection between pin10
in IC1001 of digital main PCB
Check IC1001 peripheral circuit
Yes
Yes
Yes
Line1 CVBS Video Input Error
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TEL 13942296513 QQ 376315150 892498299