Read Sony KLV-32D300A / KLV-40D300A / KLV-46D300A (serv.man2) Service Manual online
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KLV-32/40/46D300A
RM-GA008
Troubleshoot
Check the all harness and connectors first, whenever you find any problem.
Case 1)
Check the CN4003 on
BG1 board
Check the 12V from
BG1 board
Check BH
board
Done
Done
Check the 12V line on
BG1 board
Check BG1
board
Change the
Panel
No picture
Check the
Back Light
Indicate
OSD
Check the
Trident
OK
OK
OK
OK
OK
NG
NG
NG
NG
NG
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