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)
CL4506
R4508
CL4506
CL4505
R4508
C4501
R8124
101
RB1G
CHASSIS
W850A
Troubleshooting
Troubleshooting Reference
BKE and BKX board Side B (not applicable for this model)
BKE and BKX board Side B (not applicable for this model)
CL4502
CL4501
CL4502
IC4501
Vdd 9
5 X_AUDIO_MUTE_SPHPLO
102
RB1G
CHASSIS
W850A
Troubleshooting
3-3-6. No Sound : Scart Out Audio (For Europe model)
No Sound
SCART out only
This is for Main SP got sound, but SCART out no sound.
Please check this condition in Digital RF mode
BA2 / BKE / BKX Power On
checking
RB1 Main Board Power On Checking
No
Checking Item
OK
NG
If
NG
1
Check CL4515, CL4516.
(with audio signal input – Digital
RF mode)
(with audio signal input – Digital
RF mode)
Can see output audio signal
waveform
waveform
Cannot see audio signal
waveform
waveform
Go to checking
3-3-2: NO SOUND: Audio
(Additional : For Europe
models only)
3-3-2: NO SOUND: Audio
(Additional : For Europe
models only)
2
Check IC4511 pin3
Vdc = 3 3V ± 0 3V
No 3 3V supply
2
Check IC4511 pin3
Vdc = 3.3V ± 0.3V
No 3.3V supply
3
Check CL4511, CL4512
(with audio signal input – Digital
RF mode)
(with audio signal input – Digital
RF mode)
Can see input audio signal
waveform
waveform
Cannot see audio signal
waveform
waveform
Brownie IC (IC9001) NG
Size
B* Board Type G* Board Type
42”
BA2-S GL2S
Note:
(*)
47”
BA2-S
GL2S
55”
BA2-S
GL2E
103
Note:
(AYU2) – IC9000
(Brownie)- IC9001
(AYU2) – IC9000
(Brownie)- IC9001
RB1G
CHASSIS
W850A
Troubleshooting
Troubleshooting Reference
BA2 board Side B
CL4512
CL4511
3 Vcc 3.3V
CL4516
CL4515
104
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