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RB1G CHASSIS
W800A/W801A/W802A/W804A/W805A/W806A/W807A/W808A/W809A
Troubleshooting
Troubleshooting Reference
BM board Side B (not applicable for this model)
(
pp
)
CL4606
C
L
C
L
C
L
C
L
CL4605
IC4601
CL4606
L
460
2
L
460
1
L
460
3
L
460
4
CL4607
93
RB1G CHASSIS
W800A/W801A/W802A/W804A/W805A/W806A/W807A/W808A/W809A
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)
CL4
6
CL4
6
CL4
6
CL4
6
CL4
6
F4601
6
02
6
04
6
03
6
05
6
07
IC4601
CL4601
CL4601
94
RB1G CHASSIS
W800A/W801A/W802A/W804A/W805A/W806A/W807A/W808A/W809A
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)
CL4606
95
RB1G CHASSIS
W800A/W801A/W802A/W804A/W805A/W806A/W807A/W808A/W809A
Troubleshooting
No Sound
3-3-5. No Sound: HP / Lineout Only
Note:
(AYU2) – IC9000
(Brownie)- IC9001
(AYU2) – IC9000
(Brownie)- IC9001
Size
B* Board Type
OTHERS
JAPAN
42
BA2S
BA2W
HP / Lineout only
BA2 / BM / BKE / BKX Power
On checking
This is for Main SP got sound, but HP /
Lineout no sound
47
BA2S
BA2W
55
BA2S
BA2W
RB1 Main Board Power On Checking
No
Checking Item
OK
NG
If
NG
1
Insert HP Jack. Check R4508
Vdc = 3.3V ± 0.3V
Vdc = 0V or < 1V
Check HP_DET line
(R8113 – for BA2 and BM)
(R8124 – for BKE and BKX) got
(R8113 – for BA2 and BM)
(R8124 – for BKE and BKX) got
(R8124 for BKE and BKX) got
short to GND?
short to GND?
2
Check IC4501 Pin 5
(X AUDIO MUTE SPHPLO)
(X AUDIO MUTE SPHPLO)
Vdc = 3.3V ± 0.3V
Vdc = 0V or < 1V
Check X_AUDIO_ MUTE1_ SPHLO
(Pin 5)
short to GND?
( _
_
_
)
(
)
3
Check CL4505, CL4506.
(with audio signal input)
(with audio signal input)
Can see audio signal
waveform
waveform
Cannot see audio signal
waveform
waveform
Go to below item No. 4 for checking
4
Check IC4501 pin 9
Vdc = 3.3V ± 0.3V
No 3.3V supply
5
Check CL4501, CL4502
(with audio signal input)
(with audio signal input)
Can see audio signal
waveform
waveform
Cannot see audio signal
waveform
waveform
Brownie IC (IC9001) NG
96
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