Alto Dragonfly PM-12 Service Manual page 29

1 2
11
PGND
D
2
AUX-1
3
11
PGND
C
2
AUX-2
3
11
PGND
B
2
AUX-3
3
11
PGND
A 2
AUX-4
3
1 2
3
(SOLO)
10
LOGIC
12
LOGIC
AUX1 SEND
SW27D D9
PS-42E85L BAS316
(LOGIC=2.0V or 0.5V)
C149
22P
VR69
R261
W50K
36K
6
C153
1 5
R269
47u/25V
6K2
U21A
4580M
(SOLO)
10
LOGIC
12
LOGIC
SW28D D10
AUX2 SEND
PS-42E85L BAS316
(LOGIC=2.0V or 0.5V)
C150
22P
VR70
R263
W50K
36K
6
C154
1 5
R271
47u/25V
6K2
U22A
4580M
(SOLO)
10
12 LOGIC
LOGIC
SW29D D11
AUX3 SEND
PS-42E85L BAS316
(LOGIC=2.0V or 0.5V)
C151
22P
VR71
R265
W50K
36K
6
C155
1 5
R273
47u/25V
6K2
U23A
4580M
(SOLO)
10
12 LOGIC
LOGIC
SW30D D12
AUX4 SEND
PS-42E85L BAS316
(LOGIC=2.0V or 0.5V)
C152
22P
VR72
R267
W50K
36K
6
C156
1 5
R275
47u/25V
6K2
U24A
4580M
3
4 5
SW27C
R282
PS-42E85L
7
27K
8
9
AFL-L
SW27B
R283
PS-42E85L
4
27K
5
6
AFL-R
C157
SW27A
22P R281
PS-42E85L
1
8K2
2
R262
3
36K
SOLO(PFL)
7 AUX-SEND1
AUX-SEND1
C161
R270
47u/25V
10K
U21B
4580M
SW28C
R285
PS-42E85L
7
27K
8
9
AFL-L
SW28B
R286
PS-42E85L
4
27K
5
6
AFL-R
C158
SW28A
22P R284
PS-42E85L
1
8K2
2
R264
3
36K
SOLO(PFL)
7 AUX-SEND2
AUX-SEND2
C162
R272
47u/25V
10K
U22B
4580M
SW29C
R287 PS-42E85L
7
27K
8
9
AFL-L
SW29B
R289 PS-42E85L
4
27K
5
6
AFL-R
C159
SW29A
22P R288
PS-42E85L
1
8K2
2
R266
3
36K SOLO(PFL)
AUX-SEND3
7
AUX-SEND3
C163
R274
47u/25V
10K
U23B
4580M
SW30C
R290 PS-42E85L
7
27K
8
9
AFL-L
SW30B
R292 PS-42E85L
4
27K
5
6
AFL-R
C160
SW30A
22P R291
PS-42E85L
1
8K2
2
R268
3
36K SOLO(PFL)
7 DFX SEND
DFX SEND
C164
R276
47u/25V
10K
U24B
4580M
28
4 5
6 7
AUXSEND
C165 C167 C169
100n 100n 100n
+VCC
U21C U22C U23C
4580M 4580M
4580M
-VCC
C166 C168 C170
100n 100n 100n
Titel
AUX SENDS
PCB# PM12MN2.PCB
Size Model No:
A3 ALTO PM12
Date: 8-Mar-2005
File: PM12MN2.S03
6 7
8
D
C
B
C171
100n
U24C
4580M
C172
100n
A
Revision
VER031030
Sheet 3 of 7
Drawn By: Bao.
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