DOWNLOAD Sony KDL-42W850A / KDL-47W850A / KDL-55W850A Service Manual ↓ Size: 53.63 MB | Pages: 127 in PDF or view online for FREE

Model
KDL-42W850A KDL-47W850A KDL-55W850A
Pages
127
Size
53.63 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-42w850a-kdl-47w850a-kdl-55w850a.pdf
Date
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Sony KDL-42W850A / KDL-47W850A / KDL-55W850A Service Manual ▷ View online

RB1G
CHASSIS
W850A
Troubleshooting
Troubleshooting Reference 
BKE and BKX board Side A (not applicable for this model)
BKE and BKX board Side A (not applicable for this model)
CL4512
CL4515
3  Vcc
3
.3V
CL4511
CL4515
105
RB1G
CHASSIS
W850A
Troubleshooting
3-3-7. NO SOUND: TUNER
This troubleshooting is only for Analog
No Sound
with normal picture
Y
Only RF tuner input??
NO
Please refer audio 
troubleshooting
Check Brownie 
Yes
106
RB1G
CHASSIS
W850A
Troubleshooting
3-3-8. NO SOUND: HDMI
No Sound
Check the picture
NG
OK
Refer to HDMI NO PICTURE
OK
Check the mode 
of Source equipment
Change the mode of 
Source equipment to HDMI
DVI
HDMI
Change “HDMI/DVI Audio Source”  
PC A di
HDMI
What is set in 
“HDMI/DVI Audio Source”
of Sound MENU ?
Replace
IC9000
to Auto
PC Audio
Does this model have
D-sub input ?
Yes
Auto or HDMI Audio
OK
IC9000
Check R5071, C5071, C5072, 
OK
NG
Replace NG part
Check Sound by other TV set
No
Check Source equipment
by Reference TV set
C5059, C5073
Replace NG part
Is Distributor used ?
NO
which is same model 
NG
Inform the designer
OK
NG
by Reference TV set
(For example, AZ1)
Check the settings of
Is Distributor used ?
YES
Connect Source
equipment directly
of it
Note:
(*)
Size
B* Board Type G* Board Type
42”
BA2-S GL2S
107
Check the settings of 
Source equipment
q p
y
Note: 
(AYU2) – IC9000
(Brownie)- IC9001
47”
BA2-S
GL2S
55”
BA2-S
GL2E
RB1G
CHASSIS
W850A
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
(Brownie)- IC9001
(*)
Size
B* Board Type G* Board Type
42”
BA2-S GL2S
108
Source equipment
(Brownie)- IC9001
47”
BA2-S
GL2S
55”
BA2-S
GL2E
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