Family Board (Mfb); Sequence Control / Deckelectronic (De) - Grundig GV400 Servicehandbuch

www.freeservicemanuals.info
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Chassisplatte – Ablaufsteuerung/Deck-Elektronik (DE)
Family Board – Sequence Control/Deck Electronic (DE)
1 2 3
A
B
C
D
F2
145
1 TMO1
TMO1
2
NC
3 TMO2
E TMO2
+5D
F F4
3441
REEL
REEL
10k
6
+5D
5
+14M1
GNDM2
4
GNDM1
GNDD
G
3
GNDD
+14M2
2
PG/FG
3442
PG/FG
1k
1
144
41
H
45
42 43 44
F3
SVHS
16
3443
TAS
1k
TAS
15 3444
I
INIT 10k
14
LED
LED
13
WTR
WTR
12
FTA
FTA
11 3445
I/R
J
22k
RECP
10
WTL
WTL
+5D
9
+5D
8 3446
TAE
TAE 1k
7
+5D
+8M2
K
GNDD
6
GNDD
+14/9
5
6402 CREV
CREV
4 1N4148 3448
CAP
CAP 22k
3
FG
L
FG
2
GNDM1
1
143
GNDM2 GNDM2 GNDD
M
47
46
N
O
F6
P
1 2 3
4 - 8
4 5 6 7 8 9
+5D
7401
LM393
7
5.1V
+14M1
14.65V
14.5V
+14M1
2407
100n
GNDM1
7402
14V 2 7 5.3V
13.9V
1
8 2.2V
4 +5D
11.6V
L2722
0V
GNDM1
7402
GNDM1
3.6V
L2722 6
3
2.8V
5
14V
13.9V
3435
39k GNDD
2409
22n
THIO
TMO
LED
7403
2.5V 2410
BC848B
47u
WIND
2.5V
1
CTL_FB
3.2V
- AMPLIFIER
- FILTER
2.5V - DETECTOR
CTL1
3455
2.5V
2
CTL_IN/OUT WRITE
220E
AMPLIFIER
48
+ Vref
CTL2 2.5V -
3 VREF
POWER-ON AND
+
POWER-FAIL
-
DETECTOR
2414 2.1V
4
PO/FC Vref
33n
GNDD
GNDD
3451
FTA 0.1V -
5
COMP1_IN
10k +
WTR -
6 COMP2_IN
+
WTL +
7
COMP3_IN
-
FG 2415 2.5V +
8
COMP4_IN
-
100n
+5D
7411
5.3V
9
VCC
SAA1310
FTAD
GNDD GNDFV
FGD
DECK INTERFACE
+5D
GNDD
-28V +5D
GNDD
to DC 1 Operating Panel to SM 1 Power supply
4 5 6 7 8 9
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
10 11 12 13 14
+5D +5D
FRAME INTEGRATOR
5.3V
0.5V 3402 3403 CSYNC
6
10k 10k
5 GNDD
28
0.8V
EA
GNDD GNDD GNDD
CROT1
3404 13
P3-1
1M
PG/FG 2.8V
4
P1-6
FGD 2.6V 5
P1-5
SYNC 6
P1-4
GNDD
5.1V
V/H-SYNC 5.2V
7
P1-3
3.2V
WIND 9
LM393 P1-2
0.8V
7401 2
W/R 5.3V 64
1 5.3V
P4-4
I8SC1
0V
3
5V
CLKD1 5.2V
49
SCK
I8SC112
POR 0.1V
15
RST
FGD 2.6V
16
P3-4 (INTEL-VIDEO-CONTROLLER)
21
P2-3
22
P2-4
only for
3463
4HEAD
23
100E P2-5
+14M1
GNDD
24
P2-6
PAL I
3464
5.3V
26
P2-7
100E
GNDD
+5D
TMO 5.3V
27
PSEN
29
49 ALE
13.5V
7404
0.5V ILED
CAP 1V 30
PWM0
0.6V
BC848B
2.8V
REEL 2.7V
31
PWM1
THIO
32
PWM2
GNDD
CREV
18
CAP_REV
51 50 34
INTE
0.1V
0.11V
POR WTLD
17 37
PO/F_OUT INTC
2418
FTAD
39
GNDD
10n INTA
CTL_DATA 16 SYNC
53
ACH0
2.6V
15 FTAD
COMP1_OUT
3431 0.3V
TRIV 54
ACH1
1k
TAE 5.2V
14 WTRD 55
COMP2_OUT ACH2
+5D
3456
3459
AGC 2.9V
56
4k7
10k ACH3
WTLD
COMP3_OUT 13
+5D I/R 1.6V 57
+5D
ACH4
12
GND
TAS 5.2V
58
ACH5
GNDD
XTAL2
2.6V FGD
11
COMP4_OUT 10
3V
1401
5.3V
10 W/R
W/R
12MHz
GNDD
GNDD
-28V
GNDM1
GNDM2
+8M2 +14M1 +14A
5VA +33V
AFC
STROBE
to FV
F1
10 11 12 13 14
GRUNDIG Service-Technik 4 - 8
15 16 17 18 19
+5D
5.2V 5.3V
5401
22u
GNDD GNDD
8 36 52
VCC1 VCC2 AVCC
3427
0.1V
48
P0-0
1k
47
P0-1
0.1V
5V 3415
46
P0-2
1k
45
P0-3 3465
4k7
44
P0-4
43
P0-5
42 delete for
P0-6
4 HEAD
3472
41
P0-7
1k DATD1
I8SC1
40
I V C P5-0/SIN
+5D
50
SOUT
7410 3413
4k7
3425
60 5.3V
P4-0
10k
62
P4-2 +5D
3414
61
P4-1 4k7
0.1V 3426
63
P4-3 6k8
+5D delete for
3419
LONGPLAY
3420
0.1V
1
P4-5
470E
3417 GNDD
2
P4-6 4k7
3416
3 5V
P4-7
100k
38
INTB
3432
4.6V
35
INTD
1k
only for
33 +5D 4HEAD
PWM3
12
P3-0
3430
14
P3-2 470E
3428
17 5.3V
P3-5
4k7
18
P2-0
19 CREV
P2-1
20
P2-2
XTAL1 VSS1 VSS2 AVSS
11 59 25 51 +5D
2.3V
EEPROM 7412
1 8
GNDD GNDD GNDD 5.3V
2 7
GNDD
3461
3 6
100E
5.3V
4 5
3462
GNDD GNDD 100E
NM 24C02N 5.3V
In case of replacement make adjustments
for gap position and tuning limits.
(see Family Board adjustments)
+14A +33V 5VA -28V1
PWM AGC +14A +33V 5VA -28V1
MEASURED IN PLAYBACK MODE
...V
to VS/IO
...V MEASURED IN RECORD MODE
.. O
OSCILLOGRAMS
15 16 17 18 19
It`s Free
20 21 22 23
1400 O 9
1401 L15
1402 N11
141 P 8
142 P 4
A 143 L 1
144 H 1
145 D 2
2400 B11
2401 B10
2402 B16
2403 B14
2404 H12
2405 L15
2406 L14
B 2407 D 6
2408 E 5
2409 F 6
2410 H 7
2411 I 5
2412 J 5
2413 J 6
MODON
2414 J 7
MODON to VS/IO
2415 L 5
C
2416 L11
2417 L 7
2418 I11
IPBV 2419 L 3
IPBV to VS/IO
2420 L 3
2421 L 7
2422 I 6
IPALAL
IPALAL to AL 2423 B16
D
3400 B 9
3401 B10
3402 B11
3403 B11
3404 C10
DO 3405 D10
DO to VS/IO
3406 O 6
3407 O 6
E 3408 M21
3410 G11
3411 G11
3412 H11
3413 F18
3414 G17
CTL1 to AL
3415 C17
CTL2 to AL 3416 H17
3417 H17
F
TRIV to VS/IO 3418 G21
3419 G19
HP1
HP1 to VS/IO
3420 H19
3421 H18
FFP to VS/IO
3422 G18
3423 F17
3424 F18
3425 F19
3418
CROT1 G 3426 G19
33k
3427 C17
3428 J17
CROT to VS/IO
3429 J17
3430 J17
LP 3431 J13
to AL/VS
3432 I18
3433 G 7
MTA to AL
3434 G 7
H
3435 F 6
3436 F 7
IREC to AL
3437 E 7
3438 E 7
3439 D 7
3440 E 5
WTRD
3441 F 3
3442 G 3
I 3443 I 3
ENVC from VS/IO
3444 I 3
3445 J 3
SDA
3446 K 3
SDA to VS/IO
3447 K 3
SCL 3448 L 3
SCL
to VS/IO 3449 L 5
3450 L 6
3451 J 5
J
HSC to VS/IO
3452 J 6
3453 I 6
ESPBH to VS/IO 3454 I 6
3455 I 7
3456 K11
3457 K11
CSYNC
CSYNC to VS/IO 3458 K12
3459 K13
K
I8SC112
3461 L19
ILED I8SC112
to VS/IO
3462 M19
3463 F13
3464 G13
3465 D17
3466 M22
3467 M22
+8M2 +14M1
3468 M22
L 3469 L23
3470 M23
8.8V 14.6V 3471 G17
SCL
CAPSTAN
3472 E17
5401 B15
SUPPLY
14.6V
5402 C 6
SDA
SWITCH 6401 F17
6402 L 3
+5D
7401 D10
M
7401 B 9
14.6V
7402 D 6
7407
3466 7402 E 6
+5D
2k2 7403 H 5
2.8V
7404 H11
7406 BC848B
WIND 7406 N21
5.3V
DTC124EK 7407 M22
7408 L22
N
7410 F15
GNDD
7411 L 8
7412 L18
O
P
Deckelectronic 9314
A.N. 9318
20 21 22 23
GRUNDIG Service-Technik