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  • KDL-46W950A, KDL-46W954A, KDL-46W955A, KDL-46W957A, KDL-55W950A, KDL-55W954A, KDL-55W955A, KDL-55W957A

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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
Device
TV / COMMON
File
kdl-46w950a-kdl-46w954a-kdl-46w955a-kdl-46w957a-kd.pdf
Date
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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

RB1G
CHASSIS
W950A/ W954A/ W955A/ W957A
Troubleshooting
3-3-7. NO SOUND: TUNER
This troubleshooting is only for Analog
No Sound
with normal picture
NO
Y
Only RF tuner input??
NO
Please refer audio 
troubleshooting
Check Brownie 
Yes
109
RB1G
CHASSIS
W950A/ W954A/ W955A/ W957A
Troubleshooting
3-3-8. NO SOUND: HDMI
Note: 
No Sound
Size
B*
Board 
Type
G*
Board 
Type
46”
BM
G3A
(AYU2) – IC9000
(Brownie)- IC9001
Check the picture
NG
OK
Refer to HDMI NO PICTURE
55”
BM
G3B
Check the mode 
of Source equipment
Change the mode of 
Source equipment to HDMI
DVI
HDMI
Change “HDMI/DVI Audio Source”  
to Auto
PC Audio
What is set in 
“HDMI/DVI Audio Source”
of Sound MENU ?
Replace
IC9000
to Auto
Does this model have
D-sub input ?
Yes
No
Auto or HDMI Audio
OK
Check R5071, C5071, C5072, 
C5059 C5073
OK
NG
Replace NG part
Check Sound by other TV set
which is same model
No
Check Source equipment
by Reference TV set
C5059, C5073
Is Distributor used ?
NO
which is same model 
NG
Inform the designer
of it
OK
NG
(For example, AZ1)
Check the settings of 
YES
Connect Source
equipment directly
of it
110
Source equipment
RB1G
CHASSIS
W950A/ W954A/ W955A/ W957A
Troubleshooting
3-3-9. NO SOUND: MHL
No Sound
Check the picture
NG
Refer to MHL NO PICTURE
Replace
IC9000
OK
OK
OK
NG
OK
Check R5071, C5071, C5072, 
C5059, C5073
NG
Replace NG part
Check Sound by other TV set
which is same model 
NG
OK
Check Source equipment
Inform the designer
of it
OK
by Reference TV set
(For example, Samsung TV(UN46ES7000)
, Toshiba TV(42WL863))
or VA-1836
NG
Check the settings of 
S
i
t
Note: 
(AYU2) – IC9000
Size
B*
Board 
Type
G*
Board 
Type
46”
BM
G3A
111
Source equipment
(AYU2)  IC9000
(Brownie)- IC9001
55”
BM
G3B
RB1G
CHASSIS
W950A/ W954A/ W955A/ W957A
Troubleshooting
Troubleshooting Reference 
BA2 board Side B (Not applicable for this model)
BA2 board Side B (Not applicable for this model)
C5059
R5071
C5071
C5073
C5072
BA2
BA2 B Side
B Side
112
C5072
BA2
BA2--B Side
B Side
Page of 127
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