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  • KDL-60W840B, KDL-60W850B, KDL-60W855B, KDL-60W857B, KDL-60W858B, KDL-70W830B, KDL-70W840B, KDL-70W850B, KDL-70W855B, KDL-70W856B, KDL-70W857B

DOWNLOAD 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 ↓ Size: 4.61 MB | Pages: 48 in PDF or view online for FREE

Model
KDL-60W840B KDL-60W850B KDL-60W855B KDL-60W857B KDL-60W858B KDL-70W830B KDL-70W840B KDL-70W850B KDL-70W855B KDL-70W856B KDL-70W857B
Pages
48
Size
4.61 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / COMMON
File
kdl-60w840b-kdl-60w850b-kdl-60w855b-kdl-60w857b-kd.pdf
Date
PREV: Sony KDL-40W580B / KDL-40W590B / KDL-40W600B / KDL-40W605B / KDL-40W607B / KDL-40W608B / KDL-48W580B / KDL-48W585B / KDL-48W590B / KDL-48W600B / KDL-48W605B / KDL-48W607B / KDL-48W608B / KDL-48WM15B / KDL-60W600B / KDL-60W605B / KDL-60W607B / KDL-60W608B / KDL Service Manual

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 ▷ View online

RB2G
CHASSIS
W830B/ W840B/ W850B/  W855B
W856B/ W857B
Troubleshooting
3 2 3 LED BLINKING 4x (LED Voltage Error)
3-2-3. LED BLINKING 4x (LED Voltage Error)
4-times blinking
LED d i
Between 0.49V to 1.32V
Board /Parts
Board PWB  (BAX-L – B SIDE)
Check 
BACKLIGHT_MON
on the BAXL
Board
LED driver
 For HT, HM, change LD board
.
For HE, change Panel.
BAXL
BACKLIGHT_MON 
= JL9106
BACKLIGHT_MON 
= JL9106
BAXL Board
17
RB2G
CHASSIS
W830B/ W840B/ W850B/  W855B
W856B/ W857B
Troubleshooting
3 2 3 LED BLINKING 5x (T Con Error)
3-2-3. LED BLINKING 5x (T-Con Error) 
5-times blinking
BAXL (B-Side)
Check 
PANEL_VCC 12.5V at
CN8001 on
on the B* Board
G* Board
NG
Replace the Harness 
About 12.5V
OK
Symptom 
improvement
Between G* / LD board 
and B* board
Harness
NG
JL9132
Replace
the LVDS Harness
LVDS Harness
Symptom 
improvement
JL9132
(PANEL_VCC)
Change
B* Board
Change 
NG
B  Board
Panel (T-con)
NG
Symptom 
improvement
Confirm Tcon12V.
Size
B* Board
G* Board
18
B* Board
60”
BAXL
G2SB
70”
BAXL
G2SB
RB2G
CHASSIS
W830B/ W840B/ W850B/  W855B
W856B/ W857B
Troubleshooting
3 2 4 LED BLINKING 6x (Backlight Error)
3-2-4. LED BLINKING 6x (Backlight Error)
6-times blinking
6 times blinking
Check JL9106* at
Parts
Board PWB (BAXL- B side)
Check JL9106  at
(BACKLIGHT_MON) 
of CN9101
on the B* Board
B* Board
Parts
Board PWB  (BAXL B side)
(JL9106)
Change 
G* board
1.3 -1.8 V
Symptom 
improvement
Have G board?
G* Board
Yes
AY
U
2
JL9106
No
Ch
Symptom 
improvement
Change 
LD Board
LD Board
Size
B* Board
G* Board
19
60”
BAXL
G2SB
70”
BAXL
G2SB
RB2G
CHASSIS
W830B/ W840B/ W850B/  W855B
W856B/ W857B
Troubleshooting
3-2-5. LED BLINKING 7x (Temperature Error)
3-3. No Sound
No Sound
7-times blinking
No Sound
Ch
k th
Change to
“Audio System”
Setting 
circumstance is OK?
Temperature, 
Ventilation, etc.
Set to another
location, etc.
No
Check the 
“Speakers setting”
Change to 
“TV Speaker”
“TV Speakers”
Yes
Panel
NG
Change BAXL Board
and
Aging a few
Change 
the Speaker
Harness
Replace
the BAXL 
Board
NG
Symptom 
improvement
No Sound: 
Audio 
BAXL Board
Aging a few 
hours
Symptom 
improvement
Speaker 
Harness
Speaker
NG
Symptom 
improvement
No Sound: 
Tuner
No Sound: 
HDMI
BAXL  
Board
Harness
p
20
Page of 48
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