8050
8050
D N/B Maintenance
D N/B Maintenance
126
U715
ROUT+
ROUT-
LOUT+
LOUT-
L52
L50
L14
L16
21
16
4
9
C474
C489
R329
L80
+
J7
J3
U524
C474
L78
+5V
R1158
D715
OPTIN#
DEVICE_DECT
SPDIFOUT
R1185
VA
+3V
Q711
Q713
Q23
R367
DECT_HP#OPT
L754
L55
Drive
LED
IC
AGND
J720
L757
DEVICE_DECT
+3V
D22
+5V
Q38
R477
AMP_SHUTDOWN
VDD3S
R906
R905
0
SUB_OUTR
SUB_OUTL
C496
R502
C483
R496
U725
+5V
R27
5
8
6
L63
R26
R1125
2464_VREF
SUB_RIGHT
SUB_LEFT
R479
C482
R509
C490
U19
3
1
2
7
5
6
VA
R511
R463
R510
100
22.1K
22.1K
0.15U
22.1K
0.15U
22.1K
EAPD
+
600Z/100M
600Z/100M
600Z/100M
600Z/100M
100U
100U
R528
600Z/100M
22
22
600Z/100M
600Z/100M
L755
600Z/100M
600Z/100M
600Z/100M
L758
600Z/100M
DTC144TKA
10K
DTA144WK
D19
RLS4148
0
0
120Z/100M
LM4871
0
D17
RLS4148
8.2K
0.22U
8.2K
0.22U
BAT54C
LMV822
8.2K
10K
BAW56
HDR/MA-2
TPA0212_GND
ICH4_M
GP1FD310TP
HDR/MA-2
From Previous Page U726
From Previous Page U726
R322
4.7K
R1183
10K
VA
15,17
DEVICE_DECT#
10K
DEVICE_DECT#
DECT_HP#/
OPT
REMARK
0
1
0
1
0
1
0
1
HP in
OPT in
No this condition
No device
P21
P13
P21
P21
P21
HP/OPT
CON
NEC
T
OR
To U524
AUDIO AMP
From Previous Page U726
Internal
Speaker
Connector
Subwoofer
Speaker
Connector
J705
KBC_MUTE
8.10 Audio Failure(Audio Amplifier & Subwoofer)
There is trouble with the sound from speaker or completely no sound
1
4
R1122
2.1K
C471
1000P
D27
RLS4148
R445
0
80
P2
U16
WINBOND
KBC
MiTac Secret
Confidential Document