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Model
KDL-60W840B KDL-60W850B KDL-60W855B KDL-60W857B KDL-70W830B KDL-70W840B KDL-70W850B KDL-70W855B KDL-70W856B KDL-70W857B
Pages
112
Size
15.03 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LEVEL3
File
kdl-60w840b-kdl-60w850b-kdl-60w855b-kdl-60w857b-kd.pdf
Date
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Sony KDL-60W840B / KDL-60W850B / KDL-60W855B / KDL-60W857B / KDL-70W830B / KDL-70W840B / KDL-70W850B / KDL-70W855B / KDL-70W856B / KDL-70W857B Service Manual ▷ View online

Chassis: RB2G, HE-H
Chassis: RB2G, HE-H 
49
RB2G
CHASSIS
W850B
TUS board Side A
Troubleshooting Reference 
TUS board Side A
3
)
CL3103
CL3100
Vcc
(Pin 
3
IC3101
CL3104
L
3105
C
L
 
TUS Board (Side A)
 
 Trouble Shooting Reference
Chassis: RB2G, HE-H
Chassis: RB2G, HE-H 
50
RB2G
CHASSIS
W850B
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
 
2.3-5 - No Sound: Tuner
Chassis: RB2G, HE-H
Chassis: RB2G, HE-H 
51
RB2G
CHASSIS
W850B
3-3-8. NO SOUND: HDMI
No Sound
Check the picture
NG
OK
Refer to HDMI NO PICTURE
Check the mode 
of Source equipment
Change the mode of 
Source equipment to HDMI
DVI
HDMI
PC Audio
What is set in 
“HDMI/DVI Audio Source”
of Sound MENU ?
Auto or HDMI Audio
Replace
IC9000
Change “HDMI/DVI Audio Source”  
to Auto
Does this model have
D-sub input ?
YES
NO
Auto or HDMI Audio
OK
IC9000
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, RB1)
Check the settings of 
YES
Connect Source
equipment directly
of it
Source equipment
 
2.3-6 - No Sound: HDMI
Chassis: RB2G, HE-H
Chassis: RB2G, HE-H 
52
RB2G
CHASSIS
W850B
No Sound
3-3-9. NO SOUND: MHL
Check the picture
NG
Refer to MHL NO PICTURE
Replace
IC9000
OK
OK
OK
NG
Check R5071, C5071, C5072, 
C5059, C5073
Replace NG part
Check Sound by other TV set
which is same model 
NG
OK
Check Source equipment
b R f
TV
t
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 
Source equipment
Note: 
Source equipment
(AYU2(BAX)/ 
Ayu2L(BAXL
) – IC9000
(Brownie)- IC9001
 
2.3-7 - No Sound: MHL
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