Sony KD-55S8500C Service Manual page 98

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3-5. NO PICUTURE
No Picture
No
Got Any Normal
Display?
Yes
Check Other
Portion:
Ext. Video Input -
No Picture
HDMI - No Picture
Tuner - No Picture
KD-55/65S8500C(CH)
BL_ON (L or H): IC9017 #18pin (for 4K BMFW/BMFL board)
Check Smart Core
No
Behavior
(5x Blinking)
on the main board
Yes
5x Blinking
Backlight
BL_ON:H
Check
Replace
BL_ON
the V by One FFC
Harness
Symptom
BL_ON:L
improvement
V by One FFC
Harness
TROUBLE SHOOTING
NG
NG
Replace
the main Board
Symptom
improvement
Main board NG
LCD Panel
(T-CON)
98

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