Grundig Fine Arts M 100-A Servicehandbuch Seite 20

Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Lautstärkereglerplatte, Klangreglerplatte, RC-Platte / Volume Control Board, Tone Control Board, RC-Board
MOT+
FROM
MOTOR M
PAGE 3-15
MOT-
LOUDNESS
+18V
BC558B
T483
T481
BC548B
T482
R483
BC548B
100K
-18V
R488
4K7
R489
4K7
C407
F
+18V
R400
100N
59713-019.00
14
6
9 8
12
ST401
10 11
13
2 1 LINEAR ON +18V
B3B-XHA LINEAR OFF –18V
IC401
LC4966
5
LOUDNESS ON +18V
3 4
LOUDNESS OFF –18V
7
C408
F
R400
59713-019.00
100N
-18V
120n
F
C406
BU303
RC5
RC
P1R P1V
10
R300
WERT WERT
RC BOARD
59451-461.94
3 - 12
M 100-A / M 100-R
C506
F
6N8
R550
R590
100K 100K
10K
10K
R502
R506
68N
F
C502
1
4U7/25V
+
C411
10K
-V
U1 R435
-17,7V
F
IC405 C441
4
5
+
1/2 LM833N
0V
7
0V
6
- 8305-204-834
0V 8
R431
220K
C431
K
47P
C442
+V
F
+17,7V
U1
C432
K
47P
220K
IC405
R432
2
- 1/2 LM833N
0V
1
4U7/25V 0V
R412
3
+ 8305-204-834
+ 0V
1K
C412 C436
+
4U7/63V
+V (+17,7V) R471
+18V
33R
R472
-V (-17,7V)
-18V
33R
TO INPUT
BOARD
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
C505
F
6N8
R590 R550
100K 100K
R501
10K
10K
R505
68N
F
C501
TONE CONTROL BOARD
59451-462.94
R451 R457
1K 1K
R452 R458
1K 1K
T451 T452
BC550B BC550B
+18V
14
6
9 8
12
10 11
TONE ON +18V
13 TONE OFF –18V
2 1
IC450
LC4966 DIRECT ON +18V
5
DIRECT OFF –18V
+18V
10K
3 4
R436
7 BC558B
T493
R499
-18V
4K7
R498
4K7
R493
T491
BC548B 100K
-18V
3 - 13
T453 T454
BC550B BC550B
MUTING
BC558B
R461
T461
47K
R464
T462
BC548B 3K3
+12V
RC
MOT+
T492
MOT-
BC548B
R495
DEFEAT
47K LOUDNESS
MUTE
VOLUME BOARD
59451-460.94
M 100-A / M 100-R
P5V
AF-OUT-L
TO P01
POWER AMP
LEFT
PAGE 3-22
B3B-XHA
P6V
AF-OUT-R
TO P01
POWER AMP
RIGHT
PAGE 3-22
B3B-XHA
ST402
1
2
3
4
5
6
7
8
W-D0608
GND
03.06.96
GRUNDIG Service