Acer AL732, Service Manual

Page: 37 / 39

B
Audio
Acer Incorporated
AL732
1 7 Thursday, January 23, 2003
Title
Size Document Number Rev
Date: Sheet of
V12
VCC
VCC
VCC VCC
SDA
SCL
VOLUME
MUTE
TV_R
TV_L
PCL
Right_outm
VCC_AU
Left_Outm
AUD4835_DCVOL
Right_Outp
Left_outp
Left_outp
Left_Outm
Right_Outp
PCR
AVR
AVL
L-SPOUT
R-SPOUT
Right_outm
C137
0.1uF
C136
2.2uF/16V
1
2
C140
2700pF
C139
0.1uF
C138
0.1uF
R99
5.6K
C203 10uF/16V
1 2
C192 10uF/16V
1 2
R149 100K
R148 100K C148 10uF/25V
1 2
C146 10uF/25V
1 2
C144 10uF/25V
1 2
C143 10uF/25V
1 2
C142 10uF/25V
1 2
C149 10uF/25V
1 2
C208
0.1uF
CN8
SCP606
1 3
2
CN9
SCP606
1 3
2
L46 BE0805
1 2
R100 1K
C147 1UF
R109 20K
R119
10K(NP)
CN10
BASE2S
1
2
CN7
SCP606
1 3
2
C151 1UF
C145 1UF
R102
20K
U19
PT2314
1 28 6 5 7
26 27 18
14
8
19
13
9
11
10
16
15
4 21
25
2
3
24
17 12 20
23
22
VDD REF ROUT RIN LOUD_R
SDA
SCL
LOUT
LIN3
RIN4
BIN_L
LIN4
RIN3
RIN1
RIN2
LIN1
LIN2
TREB_R BIN_R
DGND
AGND
TREB_L
OUT_L
LIN
LOUD_L BOUT_L
OUT_R
BOUT_R
C133 33PF
CN5
SCP606
1 3
2
R104
1K(NP)
R115 20K
R126
2.2K
C132
10uF/16V
1
2
R120
20K
C158
0.1uF
R123 33K
R122
20K
C141
0.068uF
R106
20K
R103 33K
R118
10K(NP)
+
C163
100uF/16V(NP)
1
2
C134
0.1uF
R113 20K
R111 20K
C135
0.1uF
C150
0.068uF
CN6
BASE2S
1
2
C154
0.1uF
L39 BE0805
1 2
C152
22uF/16V
1
2
L40 BE0603
L41 BE0603
R117 10K
C162 33PF
U18
LM4838
1 8 14 20 23
6 16 27
2
3
4
5
7
9
10
11
12
13
28
26
25 24 22
21
19 18
17
15
29
GND GND GND GND GND
VDD VDD VDD
Shutdown
Gain Select
Mode
Mute
DC_Vol
Right Dock
Right In
Beep In
Lift In
Left Dock
Right Out+
Right Out-
Right Gain2 Right Gain1 Bypass
HP Sense
Lift Gain1 Lift Gain2
Lift out -
Lift out +
GND
C205
0.1uF/NP
C159
10UF/16V
1
2
C204
0.1uF/NP
Q 6
2N3904(NP)
B
E
C R127 4.7K(NP)
C153
2.2uF/16V
1
2
R125
4.7K
1
2
C157
2700pF
C156
0.1uF
C155
0.1uF
R124
5.6K
C207
0.1uF
C209
0.1uF
L47 BE0805
1 2
C161
0.1uF
C210
0.1uF
C160
100uF/16V
1
2
L48 BE0805
1 2
D16
9.1V
L45 BE0805
1 2
R121 100
R105 100
R101 100
R110 2.2K
R108 2.2K
R107 2.2K
R116 2.2K
R114 2.2K
R112 2.2K
1
H I H P O U T
A U D 4 8 3 5 _ S D
M O D E V C C O P V O L
1 0
SDWN MUTE
0
L-OUT
D E L L 1 5
D E L C 1 3 4
M O D E G N D O P M A X
D E L R 8 6
L O W S P O U T
0
MODE GAIN
D E L L 1 7
R-OUT
D E L R 8 9
HPS
H I S H U T D O W N