Grundig M 18-C, Руководство по обслуживанию

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Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs M 18-C … M 48-DC Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs M 18-C … M 48-DC
GRUNDIG Service GRUNDIG Service 4 - 53 4 - 54
3
1
Surround
Center
220n
VREF
55
4
54
7
µ
53
4
µ
7
52
220n
51
220n
50
220n
DUAL-TIME
CONSTANST
TRESHOLD
AND
SWITCH
2 x
100n 100n 100n 100n
56 1 2 3
VREF VREF VREF VREF
47n
11
22n
5
47n
8
22n
4
DIFFERENCE
AMPLIFIER
2 x
LOG-
FULL WAVE
RECTIFIER
4 x L R
L R
1
1
15k
15k
47k
680p
15k
100n 100n
18 7
6
1
20
BALANCE
VCA
AUTO-
16
15
SERVO
AUTO-
BALANCE
13
14
BALANCE
AUTO-
VCA
21
22
17
1
VREF
100n
19
47k
100n
15k
680p
10
15k
15k
9
INPUT
BUFF.
INPUT
BUFF. SPLITTER
POLRITY
2 x
VCA
8 x
NETWORKS
COMBINING
4 x
OPERATION AND CENTER MODE CONTROL
39
10
µ
32
0E 0E 0E
4
µ
7
7 4
µ
0E 0E 0E 0E
33
7
5
3
1
470E
470n
VREF
22k
470E
470n
VREF
22k
NOISE
SEQUENCER
SEQUENCER
NOISE
VREF
100k
4n7
µ
10 22
µ
25
24
23
26
27
28
10
VREF
µ
10M
VREF
MODIFIED DOLBY B-TYPE NR DECODER
VREF
48
47
46
LPF
7kHz
42
470p
15k 15k
2n2
15k
10
µ
49
330k
680n 47n
45
5n6
41
VREF
43 44
VREF
220
µ
IREF
40
100k
12
+12
37
VCC
M69032
4k7
MOD
15E
68n
20 21
15E
18
100n
RESET
AUTO
22
18k
15k
470p
15k
23
5n6
5k6
8k2
8
ADM
MODULATOR
DATA IN
DATA OUT 1
4
5
6
DELAY
TIME
CONTROL
MODE
CONTROL
MODE
CLK
16k
SRAM
1M
2
D
3
2MHz
9 10
D
D D D
11
DIG. GND
12
ANG. GND
330k
DEM
47
µ
100n
17 19
D
4k7
16
68n
15k
3n3
15
14
18k
470p
13
15k
DATA OUT 2
VCC
+5
24 1
VDD
+5
VSS
8
CONTROL
I C-BUS
AUTO
RESET
16
VDD
+5
2
Read
Write
INPUT
FILTER
REGISTER
SHIFT
8 Bit
1
2
3
13 4
5
6
11
10
7
12
P4
9
I/O
PORTS
PCF8574P
M65843P
1
3
2
47k
+5 +5 +5
47k 4k7
+5
4k7
BC848B
2k2
+5
47k
1N4148 1N4148
10k
VREF VREF
10k
220n
BC558B
36
30
NGB
NGA
NG
31
P7
P3
P5
P6
P2
P1
P0
L t
R t
L
R
4
+12
6
100
µ 4E7
BC548B
470E
100
µ
BZX79/
B10
1k5
100
µ
BZX79/
5V6
BC548B
68E
100
µ
100
µ
47
µ
D
47n 100n
+5
+9
+12
D
I C
LOUDN.
CENTER
VOLUME 1
CENTER
BASS TREBLE
CENTER
2
VOLUME 2
CENTER
SURR.
BASS
SURR.
TREBLE
SURR.
VOLUME 2
MUTE
CONTROL
LOGIC
SELECTOR
SOURCE
0
µ
9
8
2k2
22k
8n2
100p
0E
47
22
µ
0
VOLUME 1
SURR.
LOUDN.
0E
µ
µ
0
100p
8n2
22k
2k2
0
25
22
24
47
7
6 5 3 4 12 16 15 13 11 14
470n
220n
µ
0 47
4k7
4k7
4k7
220n
µ
0 47
26
4k7
470n
27
10n
28 30 29 1 32 17 18 20 22
5n6
5n6
10
23
100
µ
47
µ
21
19
Ripple in
Ripple in
Rear Front
DA CL
Input
A
Center Input
B
Center Input
C
Center Input
D
Center Input
Mono
Input Input Input Input
C
Surr.
Surr.
A B
Surr.
Surr.
D
Out C
Linear
Linear
Out S
TEA6321T/V1
1k
1k
CLK
DA1
15 14
CL
DA1
22n
D
1
µ
470E
100p
22k
9703
BC848B
1k
470E
µ
1
22k
100p
MUTE
BC848B
1k
VCC
31
+9
2
29 38
0E 0E
7
MS
C/S
MUTE
4
MUTE
L/R
CM2 (norm.)
CM1 (on/off)
NGB
NGA
NG
2
A
REQ
CLK
DAD
Surround
Right channel
Center channel
Left channel
Off
Noise
NOISE SEQUENCER OPERATION CONTROL
pin 23 pin 24 pin 25
IC 7501
L
H
L
L
L H
H
L
L
X
H
L
H
L
X
Mode
Headphone
3 Channel
4 Channel
2 Channel
L
pin 7
H
L
H
OPERATION MODE CONTROL
IC 7555
L
H
H
L
pin 12
IC 7501
L
Z
H
L
pin 31
L - R
L - R - C
Prologic
Phanton
Wide L
H
H
H
H
H
Normal
Center mode
Off
IC 7555
pin 10 pin 9
X
H
X
L
pin 11
L
H
CENTER CHANNEL OPERATION MODE CONTROL
(1)
(2)
(1)
= Only in versions with Center "on/off" mode option
(2)
= Only in versions with "Wide" option
DC LEVELS
H
L
X
Z
=
=
=
=
min
open input (typecal 2....3V)
max
don’t care
≤
≥
3,9V max 5,5V
0,8V
In
R
L
BPF
BPF
S C
35 34
L R L R
S’
OP1
LPF1
LPF2
OP1
RESET
MAIN
CONTROL
LOGIC
Front Rear
A
2
Left total
Right total
Left out
Right out
Center mode "on/off" Center mode "normal"
Mode select
5n6
Center
Surround
BC858B
10k
+5
4
10V 7
µ
0E
+5
0E
A
EXPANDER
DECODER DELAY
SOFAC
3553 3554
2554 5510
2541
2517
2518
2519
2520
2521
2522
2513 2514 2512 2511 2510 2515 2509 2516
3509
3511
3505
2507
3507
2505 2503
2504
3508
3506 2506
2508
3512
3510
2530
3613 3600 3665 2609
3599 2610 3664 3612 3619
9505
1502
3502 2502
3504
3501 2501
3503
5903
5904
3525
2535
2536 2534
2537
3526
2524
3517 3516
2526
3515 2525
3513
2523 2527 2529
2528
3520
7501
3546
2544
3547
2546
3544
2543
3543
3542
2542
3545
3541
3551
3559
2545
2547
2549
3548
2548
3549
2550
3550
7555
7541
1504
3632 3633 3631 3634
7506
3637
3560
6555 6556
3522
3521
2532
7502
2531
3589
7585
3586
2586 6567
2588
3588
6568
7586
3587
2585 2564
2587
2555 2553
2567
2569
3563
3561 2565
2631
3662
3663
3564
2568
2570
2630
2566 3562
2575
2571
2573
3567
3565
3566 2572
2574
3568 2576
2561 2577
2578
2563
2562
7561
3615
3616
2615
2580 3647
2614
3648
7510
3649
3645
2579 3644
2613
7509
3646
3611 3610
7513
3514
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
A A
B B
C C
D D
E E
F F
G G
H H
I I
J J
K K
L L
M M
N N
O O
1503
+11,5V
+5,1V +5,1V
+5,1V
+5,1V +5,1V +5,1V +5,1V
+5,1V
+5,1V
+9,3V
+11,5V
+9,3V
+11,2V +10V
+5,7V
+5,6V
+2,7V
+4,1V
+4,1V
+4,1V
+4,1V +4,1V
+4,1V
+4,1V +4,1V
+4,1V
+4,1V
+4,1V
+4,1V +4,1V +4,1V +4,1V
+4,1V
+4,1V +4,1V +4,1V +4,1V +4,1V +4,1V +4,1V
+4,1V
+3,7V
+3,7V
+3,7V
+4,1V
+4,1V +4,1V 0V +4,1V +1,5V +4,1V
+4,1V
+2,6V +2,6V
+0,9V
+2,6V
+2,6V
+2,6V +2,2V +0,9V +2,2V
+2,6V
+2,6V
+2,6V
Left signal path
Center signal path
Surround path
Surround delay path
+4,7V
+4,7V
+4,7V
+4,7V
+4,7V
+4,7V
+4,7V
+4,7V
+4,1V
+4,1V
+4,1V
+4,1V
+4,1V
+4,1V
+5,1V
+5,1V
To 54 AF
page 4-49
To 21 Front
page 4-19
To 1351 Power
page 4-73
Bauteile X Y
Components
1502 A 1
1503 I 30
1504 J 1
1505 J 28
1507 H 5
2501 D 4
2502 F 4
2503 D 12
2504 E 12
2505 D 12
2506 E 12
2507 D 13
2508 E 13
2509 B 15
2510 B 15
2511 B 17
2512 B 17
2513 B 17
2514 B 18
2515 B 16
2516 B 16
2517 C 19
2518 D 19
2519 D 19
2520 D 19
2521 E 19
2522 E 19
2523 J 12
2524 J 9
2525 J 11
2526 K 8
2527 J 12
2528 J 17
2529 J 11
2530 H 19
2531 B 2
2532 H 8
2534 B 7
2535 B 8
2536 B 8
2537 E 8
2541 H 19
2542 H 20
2543 D 21
2544 B 22
2545 H 22
2546 C 21
2547 H 25
2548 F 28
2549 F 27
2550 D 27
2553 C 4
2554 H 23
2555 C 4
2561 J 24
2562 J 22
2563 O 22
2564 B 4
2565 L 20
2566 M 20
2567 L 21
2568 M 21
2569 L 21
2570 M 21
2571 K 21
2572 N 21
2573 K 21
2574 N 21
2575 J 21
2576 O 21
2577 J 23
2578 O 23
2579 J 26
2580 O 26
2585 B 4
2586 C 3
2587 C 4
2588 D 3
2609 G 3
2610 G 3
2613 J 27
2614 O 27
2615 M 2
2630 M 20
2631 L 20
3501 D 4
3502 F 4
3503 E 5
3504 F 5
3505 D 13
3506 E 13
3507 D 13
3508 E 13
3509 C 13
3510 F 13
3511 C 13
3512 F 13
3513 J 11
3514 K 2
3515 J 10
3516 J 8
Schaltplan DPL-Platte M 48-DC / Circuit Diagram DPL Board M 48-DC
3517 J 10
3520 J 15
3521 H 7
3522 I 8
3525 B 7
3526 E 8
3541 H 19
3542 H 20
3543 H 20
3544 D 20
3545 D 20
3546 B 23
3547 B 22
3548 E 27
3549 E 27
3550 E 28
3551 G 23
3553 F 21
3554 F 21
3559 H 22
3560 L 12
3561 L 20
3562 M 20
3563 L 21
3564 M 21
3565 K 20
3566 N 20
3567 J 20
3568 O 20
3586 B 2
3587 D 3
3588 C 2
3589 B 2
3599 G 3
3600 G 3
3610 J 18
3611 J 18
3612 G 4
3613 G 4
3615 O 2
3616 N 2
3619 G 5
3631 N 7
3632 N 7
3633 N 7
3634 N 8
3635 L 16
3636 L 16
3637 K 12
3644 J 26
3645 J 27
3646 J 27
3647 O 26
3648 O 27
3649 N 27
3662 L 19
3663 M 19
3664 G 4
3665 G 4
5510 H 23
5903 G 2
5904 G 2
6555 L 12
6556 L 12
6557 L 17
6567 C 3
6568 D 3
7501 A 11
7502 H 8
7504 L 15
7505 K 16
7506 K 12
7509 K 28
7510 N 28
7513 J 2
7541 C 21
7555 K 3
7561 L 24
7585 B 3
7586 C 3
9505 G 5