Read Sony KDL-60W840B / KDL-60W850B / KDL-60W855B / KDL-60W857B / KDL-60W858B / KDL-70W830B / KDL-70W840B / KDL-70W850B / KDL-70W855B / KDL-70W856B / KDL-70W857B Service Manual online
RB2G
CHASSIS
W830B/ W840B/ W850B/ W855B
W856B/ W857B
Troubleshooting
3 4 NO PICTURE
3-4.. NO PICTURE
No Picture
3-4-1. NO PICTURE: LD Models only
All bl
i t
i
?
No
Replace
NG
Ch
k th G* LD*
OK
NG
All blue picture is on?
(Factory SW is booted.)
Yes
the B-Tcon, Tcon-LD*
FFC
Check the G*- LD*
Harness
NG
Change B* Board
Symptom
improvement
improvement
Symptom
improvement
improvement
・
B* Board
B-Tcon, Tcon-LD*
FFC
B* Board
Harness
p
p
LCD Panel
Ch
G* B
d
NG
Tuner
No Picture
HDMI
(T-con, LD*)
Change G* Board
Symptom
improvement
improvement
HDMI
No Picture
EXT. Video Input
No Picture
G* Board
No Picture
Size
B* Board
G* Board
21
60”
BAXL
G2SB
70”
BAXL
G2SB
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