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KD-55X9000A - Sony TV Service Manual (repair manual). Page 120

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No Picture
All blue picture is on?
(Factory SW is booted.)
B* Board
No
Yes
Replace
the B-Tcon, B-LD*
FFC
B-Tcon, B-LD*
FFC
NG
B* Board
Check the G*- LD*
Harness
Harness
NG
Change B* Board
OK
NG
G* Board
LCD Panel
(T-con, LD*)
Change G* Board
NG
Symptom 
improvement
Symptom 
improvement
Symptom 
improvement
Backlight Issue
KD-55/65X9000A(CH)
120
TROUBLE SHOOTING
3-4. NO PICTURE
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