Alto Dragonfly PM-12 Service Manual page 30

1 2
C373
22P
R530
10K
C376
47u/25V
SOLO(PFL)
2
SOLO(PFL)
1
3
R533
U57A
20K
4580M
C374
D
22P
R531
30K
C377
47u/25V
AFL-L
6
AFL-L
7
5
R534
U57B
20K
4580M
C375
22P
R532
30K
C378
47u/25V
AFL-R
6
AFL-R
7
5
R535
U58B
20K
4580M
SW42A
PS-42E85L
2
PGND
+RVCC +RVCC
R536 R538
C
100K 220K U58A
4580M
R540
10K
LOGIC 3
LOGIC
2
R541
R537
10K
15K
R539
15K
PGND PGND C379
100N
TR13
+RVCC R597
HR
120R 1/4W
R595
510R
D16A D16B
B
DA204K DA204K
R594
10K
R596
510R
PGND
R598
120R 1/4W
TR14
HR
D30
4148
2
L-METER
3
R584
36K
U68A
A
PGND 4580M
PGND
R586
100K
R-METER
R585
36K
PGND
1 2
3
C17
22P
SW42B
R13
C15
PS-42E85L
R11
10K
47u/25V
10K C19
4
47u/25V
5 2
PFL-IN-L
6 1
PFL-IN-L
3
U2A
4580M
**SW23:SOLO MODE
C18
22P
SW42C
R14
C16
PS-42E85L
R12 10K
47u/25V
10K C20
7
47u/25V
8 6
9 7 PFL-IN-R
PFL-IN-R
5
U2B
4580M
LD10
PFL
1
GR
3
RED SOLO
ACTIVE
R543
LD11
5K1
SW-FET
R542
SW-FET
5K1
C380
R544
1
2.2u/50V
20K
D14
BAS316 SW42D
PS-42E85L
10
11
12
D15
BAS316
LEFT METER
(-30) (-20) (-10) (-7) (-4) (-2) (0)
LD24 LD25 LD26 LD27 LD28 LD29 LD30
GR GR GR GR GR GR GR
U62B U62C U63B U63C U64B U64C U65B
LM339 LM339 LM339 LM339 LM339 LM339 LM339
PGND
R599 R600 R601 R602 R603 R604 R605 R606
56R 120R 470R 330R 470R 330R 470R 510R
U62A U62D U63A
U63D U64A U64D U65A
LM339 LM339 LM339 LM339 LM339 LM339 LM339
LD12 LD13 LD14 LD15 LD16 LD17 LD18
GR GR GR GR GR GR GR
D32
4148
6
1 7
5
D31 D33
U68B
4148 4148
4580M
PGND
R589
R588 C398
C397
100K R591
10K
47uF/25V 47uF/25V
10K
PGND PGND PGND PGND
3
4 5
SW-FET
CTRL/L
CTRL ROOM SOURCE
SW43A
R546
PS-22E85L
12K
MAIN-L-2
MAIN MIX
SW44A
R547 PS-22E85L
12K
TR15
SUB1-L
SUB 1-2 J112
SW45A
R548
PS-22E85L
12K
R556
SUB3-L 12K
SUB 3-4
PFL-IN-L
SW46A
R549
PS-22E85L R554
10K
5K1
R558
2TK TO CR-L
62K
2TK
TR16
SW-FET
SW-FET
J112
SW-FET
SW-FET
CTRL/R
SW43B
R550 PS-22E85L
12K
MAIN-R-2
MAIN MIX
SW44B
R551 PS-22E85L
4
12K
5
TR17
SUB2-R
6
SUB 1-2 J112
SW45B
R552 PS-22E85L
12K R557
12K
SUB4-R
SUB 3-4
PFL-IN-R
SW46B
R553 PS-22E85L R555
10K 5K1
R559
2TK TO CR-R
62K
2TK
SW-FET TR18
SW-FET
J112
TR19
J112
R545
100K
(+2) (+4) (+7) (+10) (+18)
LD31 LD32 LD33 LD34 LD35
GR GR YEL YEL RED
-RVCC
U65C U66B U66C U67B U67C
LM339 LM339 LM339 LM339 LM339
+RVCC
R607 R608 R609 R610 R611
PH PWR
620R 1K3 2K 5K6 8K2
R583
4K7
LD37
U65D U66A U66D U67A U67D RED
LM339 LM339 LM339 LM339 LM339
PHANTOM
-RVCC PGND
LD19 LD20 LD21 LD22 LD23
GR GR YEL YEL RED
U68C U67E U66E U65E U64E
4580M LM339 LM339 LM339 LM339
29
4 5
6
C385
22P
CONTROL
C381
ROOM
22P
C383
R560 47u/25V
VR68B
20K W50K
2
R566
2
10K
1 3
3 U60A
4580M
U59A
C386
4580M
R562
22P
100K
VR68A
PFL-IN-L
W50K
R563
6
47K
5
L-METER
R570
U60B 47u/25V
10K
4580M
C387
PHONES/
22P
C382
VR67B
22P W50K
C384
2
R574
47u/25V
R561
5K6
20K
3
U61A
6
4580M
7
C388
5
22P
U59B
W50K
4580M R564
VR67A
100K
6
PFL-IN-R
5
R565
47K
R578
U61B 47u/25V
5K6
4580M
R-METER
C403 C405
100n 100n
+VCC
U57C U58C U59C
4580M 4580M 4580M
-VCC
C404 C406
100n 100n
+RVCC
U63E U62E
LM339 LM339
-RVCC
6
7 8
CTR VU-METER
R568
20K
C393
47u/25V
1
CTRL-R-L
R569
10K
R572
20K
R573
10K
7
CTRL-R-R
C394
R576
20K
C395
47u/25V
1
PHONES-L
R577
10K
R580
20K
R581
10K
7
PHONES-R
C396
C407 C409 C411 C21
100n 100n 100n 100n
U2C
U60C U61C
4580M
4580M 4580M
C408 C410 C412 C22
100n 100n 100n 100n
Titel
CONTROL ROOM STAGE
Size Model No: Revision
A2 ALTO PM12
VER031030
Date: 8-Mar-2005 Sheet 5 of 7
File: PM12MN2.S05 Drawn By: Bao.
7 8
D
C
B
A