Inhaltsverzeichnis
Werbung
M 37-DC
DPL-Platte / DPL Board
1
2
3
4
5
6
7
A
1502
4
+12
+12
+11,5V
2531
100µ
7585
3589
BC548B
+9
B
+9,3V
3586
2534
2585
2564
+11,2V
470E
+10V
22µ
100µ
100µ
2586
6567
100µ
BZX79/
B10
NG
+5
C
+5,1V
NGA
2587
2555
2553
3588
7586
NGB
47µ
47n
100n
1k5
BC548B
+5,7V
D
D
3587
2588
+5,6V
100µ
6568
D
BZX79/
5V6
Left total
2501
3501
1
L t
470E
470n
3503
2
E
A
VREF
+4,1V
2502
3502
3
Right total
R t
470E
470n
3504
F
6
VREF
A
+4,1V
2609
3600
3665
3613
Left out
5903
9505
7
G
L
0E
0E
0E
4 µ7
2610
3599
3664
3612
3619
5904
5
Right out
R
0E
0E
0E
0E
4 µ
7
to 54 NF
H
page 4 - 25
I
1504
J
7513
4
BC858B
MUTE
MUTE
EXPANDER
+5,1V
+5
3514
K
16
7555
VDD
PCF8574P
13
AUTO
4
NG
P0
RESET
5
NGA
P1
6
NGB
L
1
P2
Read
11
CM1 (on/off)
2
P6
2
INPUT
I C-BUS
I/O
FILTER
CONTROL
Write
PORTS
10
CM2 (norm.)
P5
3
7
L/R
P3
2
12
C/S
D
P7
M
8 Bit
2615
9
SHIFT
22n
P4
REGISTER
3632
3631
VSS
15
14
8
+5
+5
+5,1V
+5,1V
N
3616
3
DA1
DA1
1k
3615
1
CL
CLK
1k
O
to 21 Front
page 4 - 7
1
2
3
4
5
6
7
1502 A1
2510 B15
2524 J9
2542 H20
1503 I30
2511 B17
2525 J11
2543 D21
1504 J1
2512 B17
2526 K8
2544 B22
1505 J30
2513 B17
2527 J12
2545 H22
1507 H5
2514 B18
2528 J17
2546 C21
2501 D4
2515 B16
2529 J11
2547 H25
2502 F4
2516 B16
2530 H19
2548 F28
2503 D12
2517 C19
2531 B2
2549 F27
2504 E12
2518 D19
2532 H8
2550 D27
2505 D12
2519 D19
2534 B7
2553 C4
2506 E12
2520 D19
2535 B8
2554 H23
2507 D13
2521 E19
2536 B8
2555 C4
2508 E13
2522 E19
2537 E8
2561 J26
2509 B15
2523 J12
2541 H19
2562 J24
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
8
9
10
11
12
13
+11,5V
+12
37
DECODER
VCC
7501
+2,7V
28
M69032
+4,1V
27
NOISE
SEQUENCER
+4,1V
26
2535
2536
3525
4n7
10
µ
VREF
3509
+4,1V
23
15k
6
3511
24
NOISE
15k
SEQUENCER
25
BPF
2503
2505
3505
17
18
7
1
47k
1
100n
100n
2507
16
INPUT
3507
BUFF.
680p
AUTO-
BALANCE
15
VCA
VREF
+4,1V
BPF
2504
2506
3506
+4,1V
14
19
10
AUTO-
47k
1
2537
100n
100n
BALANCE
3526
2508
µ
13
10
SERVO
3508
680p
VREF
VREF
VREF
+4,1V
+4,1V
22
+4,1V
3510
AUTO-
15k
BALANCE
9
21
3512
VCA
INPUT
15k
BUFF.
+4,1V
20
1
L
32
R
33
30
OPERATION AND CENTER MODE CONTROL
+4,1V
7502
2532
BC558B
36
3521
10k
220n
3522
48
+4,1V
MODIFIED DOLBY B-TYPE NR DECODER
VREF
VREF
VREF
47
+4,1V
+4,1V
LPF
+4,1V
7kHz
In
L R
+4,1V
46
42
+4,1V
41
0V
49
+4,1V
45
31
35
2524
2529
2523
2527
3513
470p
5n6
680n
47n
3516
3517
3515
2525
15k
2526
10µ
2n2
+5,1V
+5
3637
7506
BC848B
3560
47k
MS
6555
6556
1N4148
1N4148
3633
3634
+5
+5
+5,1V
+5,1V
8
9
10
11
12
13
2563 O24
2577 J25
2631 L22
3514 K2
2564 B4
2578 O25
3501 D4
3515 J10
2565 L22
2579 J28
3502 F4
3516 J8
2566 M22
2580 O28
3503 E5
3517 J10
2567 L23
2585 B4
3504 F5
3520 J15
2568 M23
2586 C3
3505 D13
3521 H7
2569 L23
2587 C4
3506 E13
3522 I8
2570 M23
2588 D3
3507 D13
3525 B7
2571 K23
2609 G3
3508 E13
3526 E8
2572 N23
2610 G3
3509 C13
3541 H19
2573 K23
2613 J29
3510 F13
3542 H20
2574 N23
2614 O29
3511 C13
3543 H20
2575 J23
2615 M2
3512 F13
3544 D20
2576 O23
2630 M22
3513 J11
3545 D20
M 37-DC
14
15
16
17
18
19
20
+4,1V
+4,1V
+4,1V
+4,1V
VREF
VREF
VREF
VREF
2510
2509
2516
2515
2511
2512
2513
2514
47n
47n
22n
22n
100n
100n
100n
100n
+4,1V
+4,1V
+4,1V
+4,1V
+4,1V
+4,1V
+4,1V
+4,1V
11
8
5
4
3
2
1
56
2517
55
+4,1V
220n
D
2518
54
+4,1V
3544
4
µ
7
18k
2 x
2519
53
2 x
DUAL-TIME
+3,7V
4 µ7
L R
4 x
LOG-
CONSTANST
3545
L R
FULL WAVE
DIFFERENCE
AND
2520
52
RECTIFIER
AMPLIFIER
TRESHOLD
5k6
SWITCH
+3,7V
220n
2521
51
+3,7V
220n
2522
50
+4,1V
220n
3553
2 x
POLRITY
+5
+5,1V
SPLITTER
8 x
VCA
3542
4 x
2530
3541
15k
COMBINING
8k2
3543
S'
39
NETWORKS
10µ
15k
2541
2542
5n6
5n6
IREF
VREF
L R
S
C
34
+1,5V
40
12
43
+4,1V
44
29
38
2528
3520
3611
3610
VREF
220µ
+4,1V
Center
Surround
14
15
16
17
18
19
20
3546 B23
3565 K22
3615 O2
3648 O29
3547 B22
3566 N22
3616 N2
3649 N29
3548 E27
3567 J22
3619 G5
3662 L21
3549 E27
3568 O22
3631 N7
3663 M21
3550 E28
3586 B2
3632 N7
3664 G4
3551 G23
3587 D3
3633 N7
3665 G4
3553 F21
3588 C2
3634 N8
5510 H23
3554 F21
3589 B2
3635 L16
5903 G2
3559 H22
3599 G3
3636 L16
5904 G2
3560 L12
3600 G3
3637 K12
6555 L12
3561 L22
3610 J18
3644 J28
6556 L12
3562 M22
3611 J18
3645 J29
6557 L17
3563 L23
3612 G4
3646 J29
6567 C3
3564 M23
3613 G4
3647 O28
6568 D3
4 - 29
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
21
22
23
24
25
26
27
DELAY
3547
15E
2544
+5,1V
+5,1V
3546
+5
+5
68n
+2,6V
20
+2,6V
21
24
1
7541
VCC
VDD
4k7
M65843P
ADM
MODULATOR
+0,9V
18
AUTO
16k
MOD
RESET
RESET
SRAM
2546
100n
OP1
DATA OUT 1
23
DATA IN
+2,6V
LPF2
2543
470p
LPF1
13
22
MAIN
2550
CONTROL
+2,6V
8
470p
LOGIC
14
18k
4
REQ
+2,6V
3549
5
CLK
DELAY
OP1
3548
15
6
DAD
TIME
15k
CONTROL
+2,6V
DATA OUT 2
DEM
2549
3554
68n
16
CLK
+2,6V
MODE
MODE
CONTROL
DIG. GND
ANG. GND
+2,6V
19
7
+2,2V
2
+2,2V
3
9
10
+0,9V
17
11
12
3551
D
D
D
1M
2545
2554
5510
2547
3559
µ
47µ
4
7
100n
10V
2MHz
D
D
+5
+5,1V
SOFAC
3567
2575
+4,7V
+4,7V
4k7
+9,3V
2562
2577
2561
470n
+9
47µ
5n6
10n
2573
31
6
19
+4,7V
5
3
4
12
16
15
13
µ
0 47
VCC
Ripple in
Rear
Front
Input
Input
Input
A
B
C
Center
Center
Center
3565
2571
7
BASS
TREBLE
VOLUME 2
4k7
MUTE
CENTER
CENTER
CENTER
220n
+4,7V
3662
2565
3561
2567
9
0E
22k
0 µ
8n2
47
2631
VOLUME 1
3563
100p
LOUDN.
7561
CENTER
2569
TEA6321T/V1
8
µ
0
22
LOGIC
SOURCE
CONTROL
SELECTOR
3663
2566
3562
2568
24
0E
22k
µ
8n2
0
47
2630
VOLUME 1
3564
100p
LOUDN.
SURR.
2570
25
µ
0
22
3566
2572
26
BASS
TREBLE
VOLUME 2
2
4k7
I C
SURR.
SURR.
SURR.
220n
Input
Input
Input
+4,7V
A
B
C
2574
Ripple in
Rear
Front
DA
CL
Surr.
Surr.
Surr.
µ
0 47
2
27
21
+4,7V
28
30
29
1
32
17
18
20
3568
2576
2563
2578
+4,7V
4k7
100µ
5n6
470n
+4,7V
21
22
23
24
25
26
27
7501 A11
7502 H8
7504 L15
7505 K16
7506 K12
7509 K30
7510 N30
7513 J2
7541 C21
7555 K3
7561 L26
7585 B3
7586 C3
9505 G5
28
29
30
31
A
NOISE SEQUENCER OPERATION CONTROL
IC 7501
Noise
pin 23
pin 24
pin 25
Off
H
X
X
Left channel
L
L
L
B
Center channel
L
L
H
Right channel
L
H
L
Surround
L
H
H
OPERATION MODE CONTROL
C
IC 7555
IC 7501
Connector 1503
Mode
pin 7
pin 12
pin 31
pin 4
pin 5
2 Channel
≤200mV
≥3,5V
H
L
L
L - R
3 Channel
≥3,5V
≥
L
H
Z
3,5V
L - R - C
4 Channel
≥3,5V
≥
H
H
H
3,5V
D
Prologic
≤200mV
≤
Headphone
L
L
L
200mV
3550
CENTER CHANNEL OPERATION MODE CONTROL
IC 7555
Center mode
pin 9
pin 10
pin 11
E
(1)
Off
X
X
L
Normal
H
L
H
Wide
(2)
L
H
H
2548
3n3
Phanton
H
H
H
(1)
= Only in versions with Center "on/off" mode option
(2)
= Only in versions with "Wide" option
F
DC LEVELS
≤
H
=
min
3,9V max 5,5V
≥
L
=
max
0,8V
X
=
don't care
Z
=
open input (typecal 2....3V)
G
Left signal path
Center signal path
Surround path
H
Surround delay path
I
1503
2579
3644
1
470E
Center
µ
1
J
2613
3645
100p
3646
1k
11
14
7509
Input
Input
BC848B
D
Mono
Center
K
Linear
Out C
10
L
2
MUTE
A
Linear
Out S
M
23
Input
N
3649
D
1k
Surr.
7510
22
BC848B
2580
3647
3
470E
Surround
1µ
2614
3648
100p
to 1351 Amp
O
page 4 - 36
9703
28
29
30
31
4 - 30
Werbung
Inhaltsverzeichnis
