LTO L-12, Service Manual

Page: 21 / 77

1 2 3 4 5 6 7 8
A
B
C
D
8 7 6 5 4 3 2 1
D
C
B
A
3
2
1
U59A
4580M
R560
20K
C381
22P
C383
47u/25V
TR15
J112
R554
5K1
SW43A
PS-22E85L
SW44A
PS-22E85L
SW46A
PS-22E85L
MAIN MIX
SUB 1-2
2TK
R547
12K
R549
10K
R546
12K
R562
100K
R563
47K
R556
12K
R558
62K
LOGIC
R536
100K
R537
15K
R540
10K
+VCC
3
2
1
U58A
4580M
R538
220K
R539
15K
+VCC
R541
10K
C379
100N
D14
BAS316
R542
5K1
LD10
GR
LD11
RED
2
1
3
SW42A
PS-42E85L
PFL
SOLO
5
6
7
U57B
4580M
R531
30K
C374
22P
C377
47u/25V
AFL-L
R534
20K
5
4
6
SW42B
PS-42E85L
5
6
7
U58B
4580M
R532
30K
C375
22P
C378
47u/25V
AFL-R
R535
20K
8
7
9
SW42C
PS-42E85L
D15
BAS316
SOLO(PFL)
11
10
12
SW42D
PS-42E85L
R543
5K1
R544
20K
C380
2.2u/50V
SW-FET
PFL-IN-L
PFL-IN-L
PFL-IN-R
L-METER
TR16
J112
SW-FET
5
6
7
U59B
4580M
R561
20K
C382
22P
C384
47u/25V
TR17
J112
R555
5K1
SW43B
PS-22E85L
SW44B
PS-22E85L
SW46B
PS-22E85L
MAIN MIX
SUB 1-2
2TK
R551
12K
R553
10K
R550
12K
R564
100K
R565
47K
R557
12K
R559
62K
SW-FET
PFL-IN-R
R-METER
TR18
J112 SW-FET
TR19
J112
R545
100K
CTRL ROOM SOURCE
CTRMETER.Sch
Titel
Size
File:
Date:
Drawn By:
Sheet
Revision Model No:
12-Jul-2003
BOW.
CONTROL ROOM STAGE
8 7 of
ALTO L-12
VER030710
A3
8 9
14
U63C
LM339
1
6 7
U63B
LM339
1
6 7
U62B
LM339
8 9
14
U62C
LM339
8 9
14
U65C
LM339
1
6 7
U65B
LM339
1
6 7
U64B
LM339
8 9
14
U64C
LM339
LD24
GR
LD25
GR
LD26
GR
LD27
GR
LD28
GR
LD29
GR
LD30
GR
LD31
GR
R597
120R 1/4W
R600
120R R601
470R R602
330R R603
470R R604
330R R605
470R R606
510R R607
620R
+VCC
R599
56R
-VCC
PGND
10 11
13
U63D
LM339
5
4
2
U63A
LM339
5
4
2
U62A
LM339
10 11
13
U62D
LM339
10 11
13
U65D
LM339
5
4
2
U65A
LM339
5
4
2
U64A
LM339
10 11
13
U64D
LM339
LD12
GR LD13
GR LD14
GR LD15
GR LD16
GR LD17
GR LD18
GR LD19
GR
-VCC
LEFT METER
(-30) (-20) (-10) (-7) (-4) (-2) (0) (+2)
3
2
1
U68A
LM4580
R584
36K
R586
100K
C397
47u/25V
PGND
10 11
13
U67D
LM339
5
4
2
U67A
LM339
5
4
2
U66A
LM339
10 11
13
U66D
LM339
LD20
GR LD21
GR LD22
YEL LD23
RED
8 9
14
U67C
LM339
1
6 7
U67B
LM339
1
6 7
U66B
LM339
8 9
14
U66C
LM339
LD32
GR
LD33
GR
LD34
YEL
LD35
RED
R608
1K3 R609
2K R610
5K6 R611
8K2
TR13
HR
+VCC
D16A
DA204K
D16B
DA204K
TR14
HR
R598
120R 1/4W
R595
510R
R596
510R
R594
10K
PGND
5
6
7
U68B
LM458
R585
36K
R589
100K
C398
47u/25V
PGND
L-METER
R-METER
3
12
U66E
LM339
3
12
U65E
LM339
3
12
U67E
LM339
3
12
U64E
LM339
3
12
U63E
LM339
8
4
U68C
4580M
C399
100N
C400
100N
R592
47R
R593
47R
C401
47u/25V
C402
47u/25V
+VCC
-VCC
PGND
LD37
RED
LD36
GR
R583
4K7
R582
2K
PGND
PGND
PH PWR
(+4) (+7) (+10) (+18)
PWR ON
PHANTOM
+VCC
3
12
U62E
LM339
R591
10K
R588
10K
PGND PGND
8
4
U59C
4580M
8
4
U58C
4580M
8
4
U57C
4580M
8
4
U60C
4580M
C403
100N
C404
100N
C405
100N
C406
100N
C407
100N
C408
100N
C409
100N
C410
100N
+VCC
-VCC
3
2
1
U57A
4580M
R530
10K
C373
22P
C376
47u/25V
CTRL-R-L
CTRL-R-R
LOGIC
SW-FET
SW-FET
SW-FET
SW-FET
SW-FET
PFL-IN-R
PFL-IN-L
PFL-IN-R
PFL-IN-L
R533
20K
MAIN-L-2
MAIN-R-2
SUB1-L
SUB2-R
2TK TO CR-R
2TK TO CR-L
SOLO(PFL)
AFL-L
AFL-R
ACTIVE
**SW23:SOLO MODE
CTR VU-METER
SW45A
PS-22E85L
SUB 3-4
R548
12K
SUB3-L
SW45B
PS-22E85L
SUB 3-4
R552
12K
SUB4-R
R566
5K6
3
2
1
U60A
NJM4580M
VR68B
W50K
R568
20K
C385
22P
C393
47u/25V
R569
10K
R570
5K6
5
6
7
U60B
NJM4580M
VR68A
W50K
R572
20K
C386
22P
C394
47u/25V
R573
10K
ROOM
CONTROL
PHONES
PHONE-L
PHONE-R
R574
5K6
3
2
1
U61A
NJM4580M
VR67B
W50K
R576
20K
C387
22P
C395
47u/25V
R577
10K
R578
5K6
5
6
7
U61B
NJM4580M
VR67A
W50K
R580
20K
C388
22P
C396
47u/25V
R581
10K
CTRL/L
CTRL/R
8
4
U61C
4580M
C411
100N
C412
100N
D30
4148
D31
4148
3
2
1
U79A
4580M
R743
10K
C472
22P
R741
10K
5
6
7
U79B
4580M
R744
10K
C473
22P
C475
47u/25V R742
10K
C470
47u/25V
C471
47u/25V
C474
47u/25V
D32
4148
D33
4148
8
4
U4C
4580M
C476
100N
C478
100N
+VCC
-VCC
R746
47R
R745
47R
8
4
U5C
LM393
C477
100N
C479
47u/25V
C480
47u/25V
C481
100N
8
4
U9C
LM393
C484
100N
8
4
U19C
LM393
8
4
U20C
4580M
C483
100N
C482
100N
8
4
U18C
LM393
C485
100N
C486
47u/25V
C487
47u/25V
PGND
+RVCC
-RVCC
8
4
U79C
4580M
C51
100N
C52
100N