Read Sony KLV-40S550A Service Manual online
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KLV-40S550A
RM-GA015
3-1-4. Flowchart D
3.2 Board Replacement Order
3-2-1. In case of most doubtful part is Power Board
Panel Problem
Is LED(STBY)
indicator turn on
or blinked?
No
Yes
Count blink and replace board to
obey with 2-6 triage chart.
Refer Section 3.2 Board
Replacement Order.
Backlight
turn on?
Yes
Is Connection at LVDS
Wire Harness correct?
Yes
Panel problem
Check T-Con and other parts
No
Re-connect LVDS wire at T-Con
and at BA board.
Check conntacted pin!
Is it broken?
NO
IP1F
Replace (OK)
Finish
7 or 13 blinking
BA
Replace Panel
NO
Replace (OK)
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