Grundig M 28-C Servicehandbuch Seite 43

M 18-C ... M 48-DC
Schaltplan Front M 18-C, M 28-C, M 38-C / Circuit Diagram Front M 18-C, M 28-C, M 38-C
1 2 3 4 5
+F
A
7403
1 8
E0 Vcc
2 7 4419
D
E1 Mode
3533
3 6 I2C_CLK
B
1k
E2 SCL
3534
I2C_DATA
4 5
1k
Vss SDA
4420
D
ST24CBXX1
To 1510 AF
+F
page 4-45
page 4-49
C
D
1401
1
N.C.
NTC
NTC 2
CLIPPING
CLIPPING 3
D ______ FADER
4
FADER
STDBY
STDBY 5
AMP_ON
6
AMP_ON
PW_DN
PW_DN 7
E CD_STBY
CD_STBY 8
MUTE
MUTE 9
TpShStr
I2C_DATA
10
I2C DATA
ShStr
I2C_CLK
11
I2C CLK ShData
F
ShClk
GND D 12 D
CD_STBY
13
+5V6
5401
6401
5406
100u
-30V
2u2
-30V 14
9440 1N4148
3591
15 1E
F2 F2
G
D
F1 16
D
3592
1E
F1 6402
+F
1N4148
D
H D D
I
J
K
To 1121 AF
+F
page 4-10
24
2458
GND 1
100p
L 3551
D
TU_RDS
1k
RDS 2
3552
TU_CE
1k
ENABLE 3
3553
TU_DATA
1k
DATA 4
3554
TU_CLK
5 1k
CLOCK
M 3555
TU_STEREO
1k
STEREO 6
D D D D D
N
1 2 3 4 5
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
6 7 8 9 10 11
1400
11-BT-146GK
CD TAPE 1 SHUFFLE RECORD
FM MW FRONT
2
RECORD SW LW BACK
3
TIMER SET STEREO HSD
NR
DUBBING
+F BAND
SHUFFLE
TIMER
PRESET
7406 7407
BC847C BC847C
G10' G11' 37 36 35 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
F2
-30V -30V
D
40
I/O PORT 7 I/O PORT 8
39
Open Source w.80k pull down to VKK Open Source w.80k pull down to VKK
6416 3520
38
1k
6415 1N4148 3518
37
1k
3516 DATA MEMORY PROGR MEMORY
1N4148 6414
36 (RAM) (ROM)
1k
1024X8 BIT 48kX8 BIT
3514
6413 1N4148
35
1k
1N4148 6412 3512
34
1k
1N4148 C P U C P U
V C P U C P U
33 DD
3510
TpSolAMotA
32
1k
3509
MUTE 31
1k
3508
D TpRec 16 BIT INTERRUPT
30
1k TIMER/COUNTER CONTROLLER
3507
TpSolBMotB
29
1k
3506
TuCounter
28
1k
CLOCK/TIMING CONTROLLER
3505
TU_STEREO 27
1k (I/O PORT 2)
3525
TU_CE
26
1k
Open Drain
3503
TU_CLK
25
1k I/O PORT 3
+F
7401
TMP87CN71AF
D D
3538
IR EYE
10k
D
5410
GP1U28XP
8MHz 5402
3537
2 1
D
1k
32kHz
MT 3 7428
D D D D D D D
+F
7404 SAA6579T
3543
2443
1 16
qual clk 2k2
47p
2 15
D
dat T57
3544
2444
3 out 14
Vref 220k
47p
4 in 13
D INC.
mux
SOUND
5407
5 12
Vdd
Vda 2u2
6 11
Vsa Vsd
D
7 10
Cin test
2442
8 9
Scout mode
560p
D
6 7 8 9 10 11
M 18-C ... M 48-DC
12 13 14 15 16
PROGRAM PLAY
DBB MODE
DSC Backlight +F
RDS
PROGRAM
SET CLOCK
AM PM TIMER
SIDE
RDS
MODE
CLEAR
TUNING
7414
15 14 13 12 11 10 9 8 7 6 3 2 1
BC847C
F1
D
+F -30V
ROCK 1412
65 CLASSIC
6458 3458
I/O PORT 9 1411
P01
2419 330E
66
1N4148 1414
D
V
KK 3438 100n
KEY0 JAZZ
67
10k
3439 6457 3457
1413
68 KEY1 P02
10k 330E
PROGRAM 1N4148
4421
69 1415 1416
COUNTER D
DEMO
3460
70 FADER
10k 6456 3456
P03 DOLBY
330E
71
1N4148 1417 1418
D
3442 R1
72
10k
3465 3455
6455
P04
73 TpEOTA
100R 330E
3466
1N4148 1419 1420
74 TpEOTB
100R L1
3467
8 BIT
75 TpADC3
3454
TIMER/COUNTER 100R 6454
P07
3468 330E
76 TpADC1
1N4148 1421 1422
100R
3469 CD
77 TpADC2
100R
6 BIT A/D-
3470 6453 3453
CONVERTER TUNER
78 NTC P08
10k 330E
3473 1N4148 1424
STDBY
79 VOL_B
1k
Tri-State
3475
80 CD_TRAYSW
6450 3450
I/O PORT 1 10k 1423 TIMER
P09
330E
1N4148
+F
C3 1430
7420
BC847C 3449
6449 C4
1429
P10
330E
1N4148 1433
OPTIMAL
6448 3448
P11
330E
INC SOUND
1N4148
DBB
D D
1432
1431
6447 3447
P12
330E
1N4148 C1 C2
6446 3446 1427 1428
P13
330E
1N4148
1425 1426
TAPE
AUX
2446
3445
6445
+F
D P14
330E
100p
1N4148
7416
7417
BC847C
1 74HCT4094 16
+F
2 15
D
OE
1458
D D
3 14
EVQWEZF20
4 13
MT
VOL_B B
5 12 TpHs
VOL_A
AMP_ON
6 11 COM
A
7 10
8 9
D ROTARY ENCODER
D
12 13 14 15 16
4 - 13 GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
17 18 19 20 21
CDC KEY
A
1443 1444 1405
1 KEY1
DISC3 DISC1
2 KEY0
3
P05'
1442 1441
4
P06'
B
+F
DISC2 Open/Close 5 +F
6 CDCLED
CDC Backlight
C
D
1456
E
1
KEY1
2 KEY0
3452
6452
330E
3 P05'
1N4148
POP 3451
6451 4
P06'
330E
+F
1N4148 5
+F +F
F
6 CDCLED
3471
7415
3k3
BC847C
1455
D
R2 D 1 GND
D
+F
2
+5
TpADC1
3
AD1 G
L2
TpEOTB
4 EOTB
To 1707 Cass
TpSolBMotB
5 SOLB/MOTB page 4-25
TpADC2
6
AD2
TpEOTA
7
EOTA
TpSolAMotA
8 SOLA/MOTA H
TpADC3
9 AD3
TpHs
10
NS/HS
22
3593
TpShStr 1
10k ENABLE
3594
ShData
2 I
10k DATA
3595
ShClk
3
10k CLK
To 1706 Cass
4
GND
D
page 4-28
TpRec
5
Rec/ALC
TpRecCr
6
Cr/Fe
TpDolby
7 J
Dolby
23
1
NC
9559
CD_OE_LATCH 2
OE_LATCH
CD_SICL 3
K
SICL
9538
2438
4
D GND
100n
To 1874 CDC
CD_SILD
5
SILD
page 4-32
D
page 4-38
L
CD_DATA
6 DATA
CD_PORE
7
PORE
D
CD_SH_CLK 8 SHR_CL
CD_STR_OUTP
9 M
STR_OUTP
9400
10
SW_INFO
CD_TRAYSW
N
17 18 19 20 21
Bauteile X Y 3466 G 13
Components 3467 G 14
3468 G 13
3469 G 14
22 I 18
3470 H 13
23 J 18
3471 F 17
24 L 2
3472 F 17
25 K 2
3473 H 14
27 F 20
3475 H 13
1400 A 9
3477 I 13
1401 C 2
3478 I 13
1404 C 20
3479 I 13
1405 A 20
3480 I 12
1411 E 16
3481 I 12
1412 E 16
3482 I 12
1413 F 16
3483 I 12
1414 E 16
3484 I 12
1415 F 16
3485 I 11
1416 F 16
3486 I 11
1417 F 16
3490 I 10
1418 F 16
3491 I 14
1419 G 16
3493 I 10
1420 G 16
3494 I 9
1421 G 16
3495 I 9
1422 G 16
3496 I 9
1423 H 16
3497 I 9
1424 H 16
3498 I 9
1425 K 16
3499 I 8
1426 K 16
3500 I 8
1427 J 16
3501 I 8
1428 J 16
3503 H 7
1429 I 16
3505 H 7
1430 H 16
3506 G 7
1431 J 16
3507 G 7
1432 J 16
3508 G 7
1433 I 16
3509 G 7
1441 B 18
3510 G 7
1442 B 17
3512 F 7
1443 A 17
3513 E 5
1444 A 18
3514 F 7
1454 E 19
3515 E 5
1455 F 19
3516 F 7
1456 E 19
3517 E 6
1458 L 16
3518 F 7
1460 F 20
3519 E 6
1461 G 20
3520 E 7
2401 G 5
3521 E 6
2402 G 6
3525 H 7
2403 H 5
3527 C 3
2404 H 5
3528 L 15
2406 J 11
3529 L 15
2407 J 11
3530 A 2
2408 J 10
3531 B 4
2409 I 10
3532 B 3
2410 N 18
3533 B 3
2412 B 6
3534 B 3
2413 B 7
3536 I 6
2414 I 14
3537 I 7
2415 I 11
3538 I 7
2416 M 15
3540 K 7
2417 M 15
3541 K 8
2418 I 14
3542 K 8
2419 E 14
3543 K 9
2420 I 7
3544 L 9
2421 A 2
3545 K 7
2422 M 13
3546 I 3
2423 I 6
3547 I 3
2424 K 13
3548 J 4
2425 G 3
3549 J 4
2426 H 3
3551 L 3
2438 K 17
3552 L 3
2439 G 20
3553 M 3
2440 F 20
3554 M 3
2441 L 7
3555 M 3
2442 M 7
3556 L 4
2443 K 10
3557 L 5
2444 L 10
3558 L 5
2445 L 9
3571 C 18
2446 K 12
3572 C 19
2451 M 4
3573 C 19
2452 M 4
3574 N 17
2453 M 5
3580 C 14
2454 M 5
3581 A 14
2455 M 5
3582 A 14
2458 L 2
3583 A 14
2459 K 18
3584 A 15
3403 C 6
3591 G 2
3404 C 7
3592 G 2
3405 D 7
3593 I 17
3406 D 8
3594 I 17
3407 D 8
3595 I 17
3408 D 8
4419 B 3
3409 D 8
4420 B 3
3410 D 9
4421 F 14
3411 D 9
4423 I 4
3412 D 9
5401 F 3
3413 D 9
5402 I 11
3414 D 9
5403 L 9
3415 D 10
5406 F 5
3416 D 10
5407 L 10
3417 D 10
5410 I 10
3418 D 10
6401 F 4
3419 D 10
6402 H 4
3420 D 11
6412 F 7
3421 D 11
6413 F 6
3422 D 11
6414 F 7
3423 D 11
6415 F 6
3424 D 11
6416 E 7
3425 D 12
6417 B 14
3426 D 12
6418 B 14
3427 D 12
6419 B 14
3428 D 12
6420 B 15
3429 D 12
6421 D 18
3430 D 13
6422 D 19
3431 D 13
6423 D 19
3432 K 11
6425 L 10
3433 K 11
6445 K 15
3434 K 11
6446 J 15
3435 C 3
6447 J 15
3437 C 3
6448 I 15
3438 E 13
6449 I 15
3439 F 14
6450 H 15
3440 K 16
6451 F 17
3441 K 16
6452 F 17
3442 F 13
6453 H 15
3443 K 13
6454 G 15
3444 K 10
6455 G 15
3445 K 15
6456 F 15
3446 J 15
6457 F 15
3447 J 15
6458 E 15
3448 I 15
7401 H 8
3449 I 15
7403 A 2
3450 H 15
7404 K 8
3451 F 18
7406 B 7
3452 E 18
7407 B 8
3453 H 15
7414 B 14
3454 G 15
7415 F 18
3455 G 15
7416 K 12
3456 F 15
7417 K 14
3457 F 15
7420 I 14
3458 E 15
7428 J 7
3459 E 13
9400 M 18
3460 F 14
9440 G 3
3461 L 13
9538 K 17
3462 L 14
9559 K 18
3463 K 14
3465 G 14
4 - 14