Video Section Flowchart - Sony BDP-S485 Service Manual

Video section flowchart

Reproduced video does not appear right
Yes
No
Is the FL display/LED display correct? To Main flowchart
Yes
No
Is the drive operating properly? To Drive flowchart
Yes
No
Check the input power To Power (System) flowchart
IC1003 pin 13 :+5V
Yes
No
Are video signals input to IC1003 Check the writting from IC101
Pin1 CVBS signal
Pin3 Y signal
Yes
No
Are control signals input to IC1003?
Check the writting from IC101
IC1003 pin6 and pin7(MUTE1 & MUTE2)
( +3.3V)
Yes
No
Is a video signal output from IC1003?
Replace IC1003
Pin 14 CVBS signal
Pin12 Y signal
Yes
No
Check output resistors
R1031,R1030,R1029,R1032,R1033,R1034,R1035 and
Is a signal output from each Video output (
connector? R1028,R1043,R1044,R1045,R1046)
Check the pin jack block