DOWNLOAD Sony KDL-46W950A / KDL-46W954A / KDL-46W955A / KDL-46W957A / KDL-55W950A / KDL-55W954A / KDL-55W955A / KDL-55W957A Service Manual ↓ Size: 54.97 MB | Pages: 127 in PDF or view online for FREE

Name: Sony KDL-46W950A / KDL-46W954A / KDL-46W955A / KDL-46W957A / KDL-55W950A / KDL-55W954A / KDL-55W955A / KDL-55W957A
Brand: Sony
SKU: 15197
Rating: 4 (1 reviews)

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Model: KDL-46W950A KDL-46W954A KDL-46W955A KDL-46W957A KDL-55W950A KDL-55W954A KDL-55W955A KDL-55W957A
Pages: 127
Size: 54.97 MB
Type: PDF
Document: Service Manual
Brand: Sony
Device: TV / COMMON
File: kdl-46w950a-kdl-46w954a-kdl-46w955a-kdl-46w957a-kd.pdf
Date: 2018-11-20

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Sony KDL-46W950A / KDL-46W954A / KDL-46W955A / KDL-46W957A / KDL-55W950A / KDL-55W954A / KDL-55W955A / KDL-55W957A Service Manual ▷ View online

Self Diagnostic Function
Symptoms - Shutdown. Power LED
blinking red diagnostics sequences
No
Power
Video
- missing or distorted
Remote
Network
Audio
Skype
Smart 
Core
Bluetooth 
(BT)
No White
Bl
t
th /
2-5. Triage Chart
Reference 
2
3
4
5
6
7
8
*10
(n/a)
No White 
Power LED  
& does not 
response to 
remote (Dead 
Set)
Stationary 
colored
lines or 
dots      
No video 
One of 
Inputs
No video 
all Inputs
No
Remote
Wireless
can't 
connect
No Audio
Skype 
Can't Work
Smart Core 
no  LED 
(Set is still 
alive)
Bluetooth / 
One Step 
Remote 
(OSR) can't 
connect
B* Board
















B* Board
















G* Board






H* Board (IR)



H** Board (SC)




Speaker


Skype Module

Wifi Module



BT Module

LD* Board


LVDS FFC




Tcon






LCD Panel






Problem
Power Power
LD
Panel
(Tcon)
Panel
(Backlight) TEMP
Soft-
ware Emitter
Audio
FAN
(N/A)
L
l
Note: Details refer to Troubleshooting Section.
Local
I2C
Size
B*
Board 
Type
G*
Board 
Type
H* 
Board 
Type
H** 
Board 
Type
SC
Secondary possible defective part
Most likely defective part
46”
BM
G3A
HIR
HSC
55”
BM
G3B
HIR
HSC
17

RB1G
CHASSIS
W950A/ W954A/ W955A/ W957A
SECTION 3
TROUBLESHOOTING
3-1.  No Power
Note: For location details, refer to troubleshooting Reference for parts location.
No Power
Check STBY 3.3V 
L9101 (B-others)
C9318 (BK*)
G* Board 
Replace
Between G* Board to
B* Board Harness
NG
NG
OK
Harness
OK
OK
B* Board
DC/DC converter check
NO POWER: Ayu2 control
Size
B*
Board 
Type
G*
Board 
Type
46”
BM
G3A
18
46”
BM
G3A
55”
BM
G3B

RB1G
CHASSIS
W950A/ W954A/ W955A/ W957A
Troubleshooting
Troubleshooting Reference 
Board 
Name
Board PWB  (A side)
Detail
BA2-S
(L9101)
L9101
BA2-W
(L9101)
L9101
BM
(L9101)
L9101
19

RB1G
CHASSIS
W950A/ W954A/ W955A/ W957A
Troubleshooting
Troubleshooting Reference 
Board Name
Board PWB  (A side)
Detail
BKX
BKX
(C9318)
C9318
BKE
BKE
(C9318)
C9318
BKJ
(C9318)
C9318
20

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