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Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Schaltplan NF-Teil M 18-C, M 28-C, M 38-C / Circuit Diagram AF Part M 18-C, M 28-C, M 38-C
1
2
3
4
5
AUX
AUX SOCKET
A
1507
1505
3593
2573
51
2
1k
3601
4u7
1
L
1
120k
1
2
2
a
a
a
3
a
a
a
3594
R
2574
3
3
1k
4
4u7
B
a
a
a
a
2587
0.47u
52
2549
TUNER_L
1
0.47u
To 1124 Tuner
2
a
2550
C
page 4-10
TUNER_R
3
0.47u
4
+12A
CD_L
TAPE_L
TO CD/3-CDC
53
1
+12M
D
SOURCE-SELECTOR
2
M
To 1873 CDC
3
+CD
page 4-32
CD_R
TAPE_R
4
CD_R
page 4-38
5
a
6
CD_L
E
2588
0.47u
F
0.47u
G
55
65
1
1
-30V
To 1703 Cass
+12M
a
page 4-26
2
2
M
56
-CMOS
H
1
-8.2V
2
TAPE_L
3
TAPE_R
To 1701 Cass
4
+12
D
D
page 4-28
5
a
I
REC_L
6
REC_R
7
1510
J
1
2
NTC
3
CLIPPING
9578
HP_SENSE
4
VOCAL_FADER
5
STANDBY
K
6
AMP_ON
7
PWR_DWN
8
To 1401 Front
CD_STBY
9
page 4-13
MUTE
page 4-19
10
I2C_DATA
L
11
I2C_CLK
12
D
4576
13
+5.6V
F2
14
-30V
15
4577
16
F1
M
1
2
3
4
5
Spannungen / Voltages
Bauteile X
Y
Components
+CD
5V
51
A
3
52
B
2
CD_STBY
0V (CD stop)
53
D
2
54
E
2
2.3V (CD play)
55
G
2
56
H
2
REF
4.2V
57
H
21
58
K
21
HPREF
6V
59
K
21
HP_SENSE
4.5V
60
A
2
+12, +12A, +12M
12V
4 - 45
M 18-C ... M 48-DC
6
7
8
9
10
4545
a
a
4501
a
2517
2501
0.47u
8n2
a
a
7553
TEA6321
4.2V
16
15
14
13
12
11
10
9
8
7
6
5
4
Front
MUTE
VOLUME1
BASS
TREBLE
LOUDN.
LEFT
LEFT
LEFT
LOGIC-CONTROL
VOLUME1
BASS
TREBLE
LOUDN.
RIGHT
RIGHT
RIGHT
Front
17
18
19
20
21
22
23
24
25
26
27
28
29
2602
3574
a
8k2
a
a
a
4.2V
a
7505
REF
BC848C
+12A
4.2V
2518
2502
a
0.47u
8n2
9558
a
a
4546
a
a
Bauteilwert
Value
Gerät / Model
M 18-C
M 28-C
M 38-C
6
7
8
9
10
61
F
1
1516
E
21
2515
D
16
2532
62
D
1
2501
A
8
2517
A
9
2533
65
G
3
2502
G
8
2518
G
9
2534
1501
D
2
2503
B
8
2521
H
4
2535
1502
H
1
2504
F
8
2522
H
5
2536
1505
I
8
2505
B
8
2523
E
13
2537
1507
I
6
2506
F
8
2524
E
12
2538
1508
E
21
2507
A
9
2525
A
7
2539
1510
J
2
2508
G
9
2526
G
7
2540
1511
G 21
2511
A
9
2527
C
17
2541
1512
A
3
2512
G
9
2528
E
17
2542
1513
K
1
2513
B
10
2529
D
18
2543
1515
I
15
2514
F
10
2531
C
17
2544
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
11
12
13
14
15
INCREDIBLE SOUND
3573
8k2
2535
150p
3577
3537
6V
6V
1k
47k
2617
3531
+12A
2577
47k
4
2
220p
100n
3539
3551
a
4.2V
1
6V
47k
33k
3533
3
2
1
47k
6
6V
3
11
Rear
7506
a
LM324N
5
2579
3541
7506
2537
22n
a
22k
LM324N
VOLUME2
470p
HPREF
LEFT
3543
2539
6V
22k
330n
2
I C
a
HPREF
2536
150p
VOLUME2
3538
6V
47k
RIGHT
2618
3532
7506
9
47k
220p
LM324N
3540
3552
8
6V
Vcc
47k
33k
3534
Rear
47k
6V
13
10
6V
30
31
32
3578
1k
12
4.2V
3542
2538
22k
7506
470p
a
LM324N
8.5V
HPREF
+9V to
3544
2540
6V
22k
7553
330n
+9V
a
HPREF
a
I2C_CLK
I2C_DATA
9514
9513
+12
+12A
4574
2507
aa
a
2508
4506
100n
M
D
220n
220n
11
12
13
14
15
E
17
2545
J
7
2558
D
20
2587
C
13
2546
J
7
2559
F
7
2588
F
13
2547
D
21
2573
I
7
2589
A
14
2548
D
21
2574
J
7
2591
E
14
2549
C
3
2575
C
20
2592
C
15
2550
C
3
2577
B
14
2593
F
15
2551
D
15
2579
C
14
2594
C
13
2552
G 15
2580
F
6
2595
F
13
2553
G 19
2581
B
7
2596
C
17
2554
G 19
2582
F
7
2601
E
17
2555
F
19
2583
G 10
2602
C
19
2556
F
19
2584
G 11
2603
F
19
2557
D
20
2585
H
4
2609
GRUNDIG Service
4 - 46
16
17
18
19
20
CD STANDBY SWITCH
7515
+CD
3575
BC327-40
2R2
5V
3548
HEADPHONE AMP.
7516
BC848C
2k2
-30V
2611
D
D
10p
3557
3563
7514
7512
HPREF
MUTE
BC858B
BC848C
27k
220k
3553
6V
2615
7
6V
5k6
a
2
1u
3595
4
3565
2543
3567
5k6
6V
1
7501
47R
68R
2541
3
47u
+12A
100n
6V
NJM4556AM
D
D
a
+12A
HPREF
3569
2558
5502
HPREF
1k
6V
22n
2u2
7503
aa
aa
BC817-40
HPREF
a
2529
2557
a
a
aa
aa
22n
3570
22n
2620
1k
7504
2542
a
5
47u
8
BC817-40
1
100n
7
6V
7501
3
6
6V
6V
NJM4556AM
2
3558
3564
3566
3568
2544
HPREF
27k
220k
47R
68R
7
3554
6V
47u
2616
14
2612
5k6
8
1u
10p
9
3530
4M7
+5.6V
3529
1M
a
HP_SENSE
3632
100R
a
3631
100R
TO POWER
L
aa
R
AMP_ON
+12M
11.5V
a
+12A
12.5V
M
+5.6V
5.6V
D
TO POWER
NTC
CLIPPING
STANDBY
F1
F2
-30V
PWR_DWN
To 1215 Power
page 4-62
To 1303 Power
page 4-66
16
17
18
19
20
B
4
2610
E
19
3501
B
3
3514
G
9
F
4
2611
B
18
3502
E
3
3515
A
9
J
6
2612
F
18
3503
C
3
3516
H
9
B
13
2613
M
4
3504
E
4
3517
A
9
E
13
2614
M
4
3505
C
4
3518
H
9
C
15
2615
C
16
3506
E
4
3519
C
16
F
15
2616
F
16
3507
A
7
3520
F
16
A
7
2617
B
15
3508
G
7
3521
A
5
G
7
2618
E
15
3509
A
7
3522
G
8
B
6
2619
G 10
3510
G
7
3523
I
4
F
5
2620
E
18
3511
A
8
3524
I
5
G 18
2621
A
4
3512
G
8
3525
J
4
D
19
2622
F
7
3513
A
9
3526
J
5
M 18-C ... M 48-DC
21
22
3540
E
15
3541
C
14
3542
F
14
3543
C
14
3544
F
14
+5.6V
3545
A
20
3546
A
20
A
3547
B
20
3548
B
21
3549
D
15
3550
G 15
3551
B
15
3552
E
15
3553
C
16
CD_STBY
3554
F
16
3555
B
16
3556
G 16
B
3557
B
17
3558
F
17
3559
B
5
3560
G
5
+5.6V
3561
C
17
3562
E
17
3586
3563
B
18
1k
3564
F
18
C
3565
C
18
MUTE
3566
F
18
3567
C
19
3568
F
19
D
3569
D
19
3570
E
19
3571
J
7
3572
J
7
2547
3573
A
11
D
3574
F
10
22n
3575
A
19
a
3576
I
14
3577
B
12
2548
3578
F
12
22n
3580
G 10
1516
3581
G 10
1508
3582
G 11
E
3583
G 12
3584
B
19
3585
C
20
HP SOCKET
3586
C
21
3587
J
3
(Dia. 3.5mm)
4
3588
J
3
3589
H
4
5
3591
L
4
3592
M
4
6
F
3593
I
7
3594
J
7
3595
C
21
3596
C
20
3597
L
4
3598
M
4
3599
L
4
3600
M
4
G
3601
A
4
3602
B
3
3611
D
16
3612
D
16
3631
G 20
3632
G 20
3635
D
18
4501
A
8
4506
J
12
57
H
4516
G
2
1
4527
J
12
2
4529
A
19
4541
A
6
To 1223 Power
3
4542
G
6
page 4-58
4543
B
6
4
4544
F
6
5
4545
A
7
To 1211 Power
I
4546
H
7
6
4547
A
8
page 4-62
4548
H
8
7
4574
J
12
4576
L
4
8
To 1301 Power
4577
M
4
page 4-66
9
4581
K
17
4582
L
17
4583
L
17
J
10
4584
L
17
4585
L
17
4586
L
17
4587
M 17
58
4588
M 17
4589
M 17
1
4590
M 17
2
59
4591
M 17
K
4592
M 17
3
1
5501
E
18
5502
D
21
4
2
5503
F
20
5
3
5504
E
20
6501
H
3
6
4
6510
I
11
6511
I
12
7
5
7501
C
18
L
7501
E
18
7503
D
19
To 1222 Power
7504
E
19
page 4-58
7505
G 10
7506
E
14
7506
F
15
7506
C
14
7506
C
15
7507
A
7
7507
H
7
M
7508
J
14
7512
B
20
7513
C
21
7514
B
20
7515
A
20
7516
B
20
7553
B
6
21
22
9513
I
12
9514
I
11
9558
H
8
3527
B
8
9578
K
4
3528
G
8
9591
D
21
3529
F
18
3530
F
18
3531
B
13
3532
E
13
3533
B
13
3534
E
13
3535
C
13
3536
F
13
3537
B
14
3538
E
14
3539
B
15
GRUNDIG Service
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