Alto X40, Service Manual

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X40-2(M).Sch
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Date:
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Sheet
Revision Model No:
27-Jan-2002
TASY J.S.
ALTO Mobile : X40 MAIN BOARD
2 2 of
X40
V1.0
A3
R148
10K0
R44
10K0
R41
15K0
R40
10K0
VR4D
B50K
R63
10K0
R64
10K0
C64
153(M)
VR4C
B50K
R59
10K0
R60
10K0
C61
153(M)
R43
3K57
VR4B
B50K
R57
10K0
R58
10K0
C60
153(M)
VR4A
B50K
R55
10K0
R56
10K0
C57
153(M)
R45
3K57
R54
10K0
R37
15K0
R34 10K0
VR5D
B50K
R61
49K9
R62
10K0
C53
683(M)
VR5C
B50K
R50
49K9
R51
10K0
C52
683(M)
R35
3K57
VR5B
B50K
R48
49K9
R49
10K0
C50
683(M)
VR5A
B50K
R46
49K9
R47
10K0
C48
683(M)
R33
3K57
R38
10K0
R39
10K0
R143
10K0
R145
10K0
R144
10K0
R75
10K0
R10
150R
C36
220P
C27
182(M)
C30
100/25V
R11
100K
R140
10K0
R147
10K0
R146
10K0
R13
150R
C35
220P
C34
182(M)
C32
100/25V
R12
100K
SW6
SW-PBA/2P
2
1
3
S4
CN-BAL(MALE)
MID OUT 1
SW3
SW-PBA/2P
VR2
10KB
R19
4K99
R18
27K4
R16
100K
R15
4K7
R14
7K5
R70
2K7
R17
27K
+15V
R67
1K5
D9
LED
SUB CLIP
-15V
R126
10K(8B)
R128
10K
R129
10K
R73
10K0
R2
150R
C8
220P
C7
182(M)
C10
100/25V
R3
100K
R149
10K0
R131
10K0
R130
10K0
R5
150R
C15
220P
C14
182(M)
C12
100/25V
R4
100K
2
1
3
S2
CN-BAL(MALE)
SUB OUT 1
SW4
SW-PBA/2P
VR7
10KB
R25
4K99
R24
27K4
R22
100K
R20
4K7
R21
7K5
R71
2K7
R23
27K
+15V
R68
1K5
D6
LED
LOW CLIP
-15V
R135
10K0
R136
10K0
R137
10K0
R74
10K0
R6
150R
C28
220P
C17
182(M)
C20
100/25V
R7
100K
R132
10K0
R139
10K0
R138
10K0
R9
150R
C25
220P
C24
182(M)
C22
100/25V
R8
100K
SW5
SW-PBA/2P
2
1
3
S3
CN-BAL(MALE)
LOW OUT 1
SW2
SW-PBA/2P
VR6
10KB
R30
4K99
R31
27K4
R27
100K
R29
4K7
R28
7K5
R72
2K7
R26
27K
+15V
R69
1K5
D7
LED
MID CLIP
-15V
R32
10K0
XOVER FREQ 30Hz + 250Hz
XOVER FREQ 100Hz + 1KHz
C3
104P
C6
104P
C56
104P
C58
104P
C59
104P
C62
104P
C54
104P
C55
104P
C49
104P
C51
104P
+15V
-15V
C43
100/25V
C44
100/25V
C39
100/25V
C40
100/25V
C41
100/25V
C45
100/25V
R201
2R2 1/2W
R202
2R2 1/2W
1
2
3
CN1
3P2.5
AGND
C38
1000/25V
C37
1000/25V
1
2
3
4
5
CN2
4P2.0
LD1
LD2
LD3
-15V
LD1
LD2 LD3
R42
2K49
R36 2K49
R78
R77
R76
CHS1 CHS2
LD4
P1
3
2
1
IC4A
MC33079
5
6
7
IC4B
MC33079
10
9
8
IC4C
MC33079
12
13
14
IC4D
MC33079
3
2
1
IC5A
MC33079
5
6
7
IC5B
MC33079
10
9
8
IC5C
MC33079
12
13
14
IC5D
MC33079
3
2
1
IC6A
MC33079
5
6
7
IC6B
MC33079
10
9
8
IC6C
MC33079
12
13
14
IC6D
MC33079
3
2
1
IC7A
MC33079
5
6
7
IC7B
MC33079
10
9
8
IC7C
MC33079
12
13
14
IC7D
MC33079
3
2
1
IC8A
MC33079
5
6
7
IC8B
MC33079
10
9
8
IC8C
MC33079
12
13
14
IC8D
MC33079
3
2
1
IC9A
MC33079
5
6
7
IC9B
MC33079
10
9
8
IC9C
MC33079
12
13
14
IC9D
MC33079
4
11
IC1E
MC33079
4
11
IC2E
MC33079
4
11
IC3E
MC33079
4
11
IC4E
MC33079
4
11
IC5E
MC33079
4
11
IC6E
MC33079
4
11
IC7E
MC330079
4
11
IC8E
MC33079
4
11
IC9E
MC33079
C9
100/25V
C16
100/25V