Alto MAC 2.3 Service Manual

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B
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87654321
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Title
Number RevisionSize
D
Date: 17-Sep-2004 Sheet of
File: D:\MAC\PCB .ddb Drawn By:
5
6
7
84
U2-B
NE5532
3
2
1
U2-A NE5532
R46 10K
R48 10K
R41 10K
R45
1K
R42
820
R44 10K
R56
270
R57
4.7K
R50
270
C21 180P
C27
10U
C20
180P
C25
0.15
C26
0.22U
C4
0.022U
C23
56P
C8
0.0033U
C22 56P
C9
0.0033U
C7
0.0022U
C6
0.022U
C24
0.15
ZD5
15V 1N4744
ZD6
15V 1N4744
D12 D13
D15
1N4148*4
D14
R22
820
R24
820
R21
10K
R17
0.2-5W
R15
0.2-5W
R8
0.2-5W
R10
0.2-5W
R16
0.2-5W
R20
1.5K
R7
47K
R9
0.2-5W
R54
10K-1%-1/2W
R18
2.4K-3W
+15V_A
D6
1N4148
D8
1N4937
D5
1N4148
D2
1N4004
D4
1N4148
D1
1N4004
D3
1N4148
D10
1N4148
D13
1N4148
VR1
100
ZD1
5.6V-1/2W
R23
90
VR2
3.3K
VR3
3.3K
Q9
2SC2412K
Q10
2SC2412K
Q8
2SC5200
Q6
2SC5200
Q7
2SC5200
Q1
2SA1943
Q2
2SA1943
Q3
2SA1943
Q5
15033
Q4
15032
R12
6.8-1/2W
R13
6.8-1/2W
R59
390K
R4
820-3W
R5
820-3W
+VCC_A
-VCC_A
SP_A
R1
5.6-2W
T1
2UH
R2
12-3W
R3
12-3W
C3
0.068U
E200
E201 JP16
JP15
1+
1-
2+
2-
SPEAKON
J203+
J203-
BR_POS
BR_NEG
PSA3600(MAC2.2) Schematic Diagram 1 of 4
CHANNEL-A
Channel-A
R14
22-1W
C5
0.001U
R55
9.09K-1%-1/2W
R32
1K
R58
33K
R24
33K
R60
3.3K
PSA-3000
^R_0805
^R_0805
^R_0805
^C_0805
^R_0805
^R_0805
^C_0805
^R_0805
^R_0805
^R_1206
^R_1206
^R_0805
^R_0805
^C_1206
^R_1206
^R_0805
^R_0805
^C_1206
^R_1206
^C_1206
^R_1206
^R_1206
^R_1206
^R_0805
R51
20K
R31
20K
^R_0805 ^R_0805
A1
A1
A1
A1
P1
P1
P1
P1
P1
P1
P1
P1
DingNianCong
1 4
PSA3600-L
+SPK
-SPK
E112
-VCC_A
+VCC_A
C1
4700U/80V
C2
4700U/80V
C19
220U
C18
220U
+67V
-67V
R22
6.8-1W
A1
P1
CN1:12
CN1:12
CN1:13
CN1:13
NC
NC
NC
D9
1N4937
ZD2
5.6V-1/2W
R6
47
^R_0805
CN1:7
CN1:7
R26
100
-15V_A
^R_0805
P1
CN1:4
CN1:4
R52
150K
R53
150K
TH_A
+VCC_A
^R_1206
^R_1206
CN1:10
CN1:10
R11
22-1W
R19
2.4K-3W
D71N4148
CN1:5
CN1:5
CN1:6
CN1:6
GND
CN1:11
CN1:11
SP_A
SP_A
TO VR1(VOL)
CN2:5
CN1:5
CN2:6
CN1:6
CN2:7
CN1:7
CN1:4
CN2:4
CN2:3
CN1:3
TO LED1(CLIP A)
TO LED 2(SIG A)
CN2:2
CN1:2
CN1:1
CN2:1
+IN B
-IN B
F-30-BF-SND-B
F-BYP-B
BR-RET
BR-CUT
CLIP-B
1
3
5
7
9
11
13
15
17
19
21
23
25
2
4
6
8
10
12
14
16
18
20
22
24
26
CN104
BR_BAL
A1
BR_BAL
^C_0805
R40
10K
R39
270
R73
100
R61
39K
R47
7.5K
R38
150K
R49
100
C14
100UF
Q11
HMBT5401
-14V
C17
0.1U
+14V
3
2
4
5
1
7
8
116 U1A
LM13700
^R_0805
^R_0805
^R_0805
^R_0805
^R_0805
A1
C9
0.1-50V
C16
0.1-50V
^C_1206
^C_1206
^C_1206
^R_0805
PSA3600-R
TO TH2
be modify
be modify
be modify
be modify
BR MONO FEED
SW TO GND FOR CLIP LIM
FILT-SEND A
FILT-BYP A
FILT-CAP A
4
4. Schematic Diagram

Alto MAC 2.3 Specifications

General

Brand	Alto
Model	MAC 2.3
Category	Amplifier
Language	English