Read Sony KLV-40S550A Service Manual online
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KLV-40S550A
RM-GA015
Only
Speaker
out?
HDMI
Problem?
BA Board
No
No
No
UI of
Audio Setting
correct? Volume,
TV Speaker
BA Board
BA Board
Set correctly or
reset by menu
Check Speaker
BA board
No
Yes
Yes
Analog
Channel
Problem?
3-1-2. Flowchart B
3-1-3. Flowchart C
BA Board
Video
Problem
All inputs
have
problem?
HDMI
Problem?
Analog
Channel
Problem?
No
No
No
BA Board
BA Board
Check LVDS harness connection
Or BA board or Panel
No
Yes
Yes
Backlight
turn on?
BA Board
VIDEO PROBLEM
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