Audioaccess MA-361 Service, Service Manual

Page: 86 / 110

+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
-12V
-12V
-12V
-12V
-12V
-12V
-12V
-12V
-12V
-12V
-12V
-12V
-12V
-12V
-12V
+5V
+5V
3
5V-MAIN
IN-
IN+
V+
V-
OUT
+
-
+
+
IN-
IN+
V+
V-
OUT
+
-
+
3
5V-MAIN
IN-
IN+
V+
V-
OUT
+
-
IN-
IN+
V+
V-
OUT
+
-
IN-
IN+
V+
V-
OUT
+
-
+
IN-
IN+
V+
V-
OUT
+
-
IN-
IN+
V+
V-
OUT
+
-
5V-MAIN
-5V
+
IN-
IN+
V+
V-
OUT
+
-
IN-
IN+
V+
V-
OUT
+
-
IN-
IN+
V+
V-
OUT
+
-
No.
ISSUE REVISION DATE
CH.
DR. BY DATE
DATE
SCALE:
NAME
USED IN
C D E R
MATERIAL
A B
OF SHEET SIZE
MADRIGAL
audio laboratories, inc.
2081 south main street middletown connecticut 06457 u.s.a.
SOT-23
-5V
-5V
GND
ON_OFF
VCC
X Y
X
ON_OFF
Y
ORIGINAL IN RED
Part #
Print #
Release date:
Types of
release:
Comments:
Drafting approval:
Issued by:
SIGNATURE
DATE:
Eng approval:
1st production
Prototype
Revision
Pilot
11/30/01
11/30/01
CHANGE GROUND SS AND VALUES.
C
B
CHANGED VALUES OPAMPS 10/3/01
8/3/01
A
ADDED S1,2 THERMOSTATS, MOVED TRACES.
L
SIGNAL SENSE
L
15
ZONE 3
5
R
R
5
D
CHANGE GROUND SS AND VALUES.
580643B
943310D
10K0
R525
10K0
R521
VREF_4
R541
1K00
PRE_Z3_R
PRE_Z3_L
14
P15
12
P15
13
P15
11
P15
C533
NOT
USED
SENSE_3
R539
1K00
1
13
2
U503
CD4016BCM
14
5
7
4 3
U503
CD4016BCM
VI+_R_3
VI-_R_3
VI+_L_3
VI-_L_3
EQ3_LO
VOL_L_IN_3
VOL_R_IN_3
EQ3_RO
3
1
2
Q503
MMBT3906
CAD ID.=361AUDIO
C
MA361 AUDIO
MA361
943310D
D.C. 3-13-01
2
3
8
4
1
U502
TL072CD
MONO_ZN_3
1
3
2
Q502
MMBD3904LT1
R516
NU
7
4
8
5
6
U505
TL072CD
2
3
8
4
1
U505
TL072CD
47U
C518
16V
R515
10K0
R517
1K00
1K00
R518
R526
20K0
R522
20K0
100N
C521
25V 20K0
R519
R511
20K0
6
5
8
4
7
U502
TL072CD
20K0
R507
50V
18P0
C516
20K0
R512
20K0
R510
C515
18P0
50V
C511
18P0
50V
C513
100N
25V
R509
20K0
C509
100N
25V
100N
C510
25V
R508
20K0
20K0
R506
R505
20K0
20K0
R513
R514
20K0
6
5
8
4
7
U504
TL072CD
50V
18P0
C514
100N
C512
25V
100N
C517
25V
25V
C519
100N
16V
C520
47U
2
3
8
4
1
U504
TL072CD
50V
18P0
C525
C524
18P0
50V
R520
20K0
20K0
R523
C522
100N
25V
100N
C523
25V
2
3
8
4
1
U506
TL072CD
6
5
8
4
7
U506
TL072CD
50V
18P0
C529
C528
18P0
50V
R524
20K0
20K0
R527
C526
100N
25V
100N
C527
25V
R534
1M50
R535
10K0
3 1
CR503
MMBD914
R530
NU
C537
4U7
16V
16V
C535
47U
C539
100N
25V
R533
221R
R540
10K0
33K2
R529
33K2
R528
R538
22K1
7
4
8
5
6
TL072CD
U507
R532
10M0
R531
10M0
C534
NOT
USED
C532
1U0
50V
1 3
MMBD914
CR504
2
3
8
4
1
U507
TL072CD
100N
C538
25V
3
1
CR505
MMBD914
PRE_Z3_R
PRE_Z3_L
C531
100N
25V
100N
C530
25V