Circuits imprimés et des schémas électriques / Layout of PCBs and Circuit Diagrams
GV 27 EURO, GV 7… EURO
Circuits imprimés et des schémas électriques / Layout of PCBs and Circuit Diagrams
GV 27 EURO, GV 7… EURO
4 - 33
GRUNDIG Service
4 - 34
GRUNDIG Service
Circuit principal – Procédure servo / Gestion mécanique (DE)
Chassis Board – Drive Control / Deck Electronic (DE)
46
OSCILLOGRAMS
..
42
51
56
55
58
57
50
47
43
48
44
43
49
...V MEASURED IN RECORD MODE
...V MEASURED IN PLAYBACK MODE
0V
5.1V
0V
0.3V
0V
0V
2.6V
2.6V
0V
0V
0V
5.1V
5.2V
0.5V
0.9V
2.6V
0.5V
1.5V
0V
2.8V
2.8V
2.5V
2.8V
0V
5.1V
0V
5V
5.1V
5.1V
5.1V
5.2V
5.2V
5.2V
2.5V
5.2V
0.1V
2V
2.5V
2.5V
2.5V
2.5V
3.2V
2.5V
0V
chip components
...
WTRD
WTRD
FTAD
FTAD
FTAD
SYNC
SYNC
SYNC
SYNC
FFP
FFP
FG
CREV
CREV
SCL2
SCL2
SDA2
SDA2
WTL
DATD1
DATD1
DATD2
DATD2
CLKD1
CLKD1
FGD
FGD
FGD
PG/FG
PG/FG
IREV
IREV
CSW
CSW
PBV
PBV
ISWS
ISWS
CTL2
CTL1
WTLD
WTLD
IPOR
IPOR
IPOR
OFP
OFP
TAS
CSI
CSI
TMO
TMO
CAP
CAP
POR
IRAF
IRAF
ENVC
ENVC
FOME
FOME
CSYNC1
CSYNC1
CKDET
CKDET
AGC
AGC
8SC1
8SC1
SWIN
SWIN
CSCP
CSCP
HP2
HP2
CROT
CROT
MTA
MTA
TRIA/ALI
TRIA/ALI
8SC2
8SC2
W/R
W/R
REEL
REEL
THIO
IWIND
IWIND
VISS
VISS
TRIV
TRIV
not used
not used
5,1V
5,2V
4,9V
0V
3,1V
ILED
2,1V
2,1V
0V
2,1V
4V
3,6V
0,2V
0,2V
14,1V
3,9V
I/R
1,1V
1,1V
1,1V
3,9V
4,5V
3,7V
3,7V
4,3V
4,4V
0,5V
0,3V
1V
1V
0,1V
0,1V
2,1V
7,9V
3,7V
3,7V
3,7V
1,1V
2,6V
0V
3,7V
not used
to VS
for GEMSTAR
ST24C08
not used
(HEAD-DRUM-Driver)
(Control-Interface)
(Buffer)
(Buffer)
(SWITCH)
(Inverter)
(Inverter)
(SWITCH)
(Buffer)
(DECK-Controller)
TAE
SHUTTLE b2
SHUTTLE b3
SHUTTLE b1
SHUTTLE b4
to VS,VH
from OSD
from VS
delete for OSD
GNDD
POS
MOT3
MOT2
MOT1
MOT0
to Capstan Motor
0V
5V
14V
-2B
-2A
5.2V
0V
2.5V
0V
0.1V
TMO2
TMO1
CREV
9/14VM2
CAP
+5D
FG
GNDD
from/to AL
from/to AL
from HA
NC
GNDD
GNDM
(IR-Receiver)
to AL
to AF/HA
to OSD
to VS
to HA
to VS
from IO
from AF
to VS
from/to FV,VP,VS,AF,IO
to FV,VP,VS,AF,IO
only for 3HD & 4HD
to IO
to HA
to VS-S
from/to PS
to VS-S
from FV
only < 100s
only < 100s
from VS
from/to VS
to VS
from HA
not used
not used
NFR25
NFR25
(OP-Amp)
(OP-Amp)
(CSYNC-Integration)
(EEPROM)
to OSD
Shuttle
to Threading Motor
to Scanner Motor
WTL
4
5
1
6
7
8
9
10
11
12
13
14
15
2
16
17
18
19
20
21
22
23
24
3
M
L
K
J
P
I
H
G
F
E
D
C
B
A
O
N
4
5
1
6
7
8
9
10
11
12
13
14
15
2
16
17
18
19
20
21
22
23
24
3
220u
2459
25V
220u
2318
25V
100u
2440
25V
47u
2417
16V
47u
2463
6,3V
22u
2401
16V
47u
2466
6,3V
2462
16V
22u
2220
2460
3419
3245
22k
3410
4k7
3571
12k
3229
10k
3456
10k
3458
22k
3462
56k
3495
100k
3449
10k
3493
2M2
3498
4k7
3488
470E
3478
100k
3492
47k
3496
4k7
3438
4k7
3494
100k
3497
4k7
3461
4k7
3241
68k
3242
68k
3243
68k
3420
10k
3408
2k2
3228
220E
3448
10k
3240
68k
3418
1k
3570
10k
3303
470E
3484
4k7
3473
390E
3411
10k
3471
390E
3476
390E
3479
4k7
3433
2k2
3457
1k
3472
27k
3423
270E
3459
270E
3455
4k7
3454
4k7
3453
4k7
3452
2k7
3451
10k
3312
1k8
3313
47k
3305
4k7
3300
100E
3301
100E
3304
1k
3302
100E
3470
27k
3475
5k6
3460
47k
3435
10k
3481
2k2
3402
1k
3431
3k9
3430
1k8
3412
1k8
3232
100E
3231
100E
3432
10k
3499
4k7
3482
22k
3474
10k
3491
47k
3446
22k
3442
82k
3447
22k
3489
4k7
3490
220E
3445
10k
3464
2k2
3480
47k
3444
3k9
3443
22k
3413
1k
3450
2k2
3441
1E
3469
270E
3406
10k
3440
2E2
3400
10k
3401
10k
3483
10k
3436
1k
3424
2k2
3421
10k
3466
10k
3316
3235
10k
3407
10k
3434
22k
3437
6k8
3403
2k2
3404
10k
3405
270E
3477
4k7
3463
4k7
3414
10E
3415
10E
3416
22k
3417
4k7
3244
1k
5VD
5VD
5VD
5VD
5VASW
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
5VD
-28V
5VD
5VD
5VASW
5VD1
5VD2
5VD2
5VD2
5VD
5VD2
5VD2
14VM1
9/14VM2 5VD
5VASW
14VM1
5VD
14VM1
14VM1
IREV
TRIV
CSW
ISWS
FOME
5VASW
CSYNC
CTL2
CTL1
8SC2
TRIA/ALI
MTA
HP2
OFP
FFP
SWIN
CROT
CSCP
SDA
SCL
8SC1
IRAF
CSI
-28V
14VM1
9/14VM2
PBV
AGC
5VD
CKDET
SDA2
SCL2
ENVC
CSYNC2
TCST1030L
7466
TCRT5000L
7464
TCRT5000L
7465
50V
2n2
2455
10n
2470
50V
22n
2319
50V
100n
2310
25V
22n
2317
50V
47n
2316
50V
10n
2315
50V
100n
2314
25V
10n
2311
50V
100p
2308
50V
220p
2313
50V
2214
2213
100n
2402
25V
4n7
2461
50V
22p
2404
50V
22p
2403
50V
10n
2442
50V
100n
2416
25V
100n
2468
25V
33n
2467
50V
4n7
2464
2n2
2465
50V
100n
2441
25V
10n
2400
50V
220n
2212
25V
50V
10n
2230
10n
2471
50V
47n
2231
50V
50V
22n
2320
100p
2474
50V
100p
2473
50V
100p
2472
50V
MMUN2212LT1
7231
MMUN2112LT1
7455
MMUN2112LT1
7301
BC847B
7457
BC847B
7456
BC847B
7469
BC847B
7458
BC847B
7468
BC847B
7467
10u
only for SECAM
5402
20%
330n
5300
10u
5400
TFMS5360
7203
1
3
2
1945
1
2
3
4
5
6
7
8
1946
1
2
3
4
5
6
7
8
GNDA
GNDA
GNDA
GNDA
1944
1
2
3
14VM1
9/14VM2
BC337-40
7463
10MHz
1400
TDA5241
7300
9
10
15
11
12
13
1
7
14
18
3
16
17
2
6
5
8
4
PROTECT
THERMAL
DEVIDE
BY 2
STAGE2
DRIVER
OUTPUT
STAGE1
DRIVER
OUTPUT
FLYBACK
PUSH/PULL
ROTATION
SPEED &
OUTPUT
STAGE
STAGE
POSITION
DETECTOR
PG/FG
GND2
PG_out
CAP_CDM
Vp
MOT2
NC2
GND1
PG_IN
ADAPTIVE
COMMUNICATION
DELAY
COMMUNICATION
LOGIC
START-UP
OSCILLATOR
TIMING
STAGE3
DRIVER
OUTPUT
CAP_CDS
CAP-CPC
CAP-ST
CTL_IN
CAP_TI
MOT0
MOT3
NC1
MOT1
+
-
CAP-CPC
CAP-CPC
DECK
1460
DECK
1461
1930
1
2
3
4
5
6
TMP91C642AF/QTDP2-3U
7400
61
60
59
57
39
16
17
18
19
20
21
22
23
35
36
37
38
34
33
32
31
30
29
28
27
3
4
5
6
7
8
9
10
62
63
64
1
2
55
54
53
52
51
50
49
48
47
46
45
44
11
12
13
14
24
25
40
15
58
56
26
43
41
42
VCC1
TI1
C-SYNC
EXT
RXD0
TXD0
TPG0-11/TPG1-11
CAP3
AN00
CAP2
CAP1
CAP0
PWM8
TEST
AN01
AN02
AN03
SCLK0
AN04
AN05
AN06
AN07
AN10
AN11
INT2
INT0
INT1
XTAL2
P66
P33
P34
P42
P41
PW0
PW1
P13
P67
P50
P65
P36
P64
P37
P31
P51
P52
P53
P40
P54
P55
P56
P57
P60
P61
P46
P35
P47
RESET
P30
XTAL1
TPG0-10/TPG1-10
VSS1
VREF
TPG0-8/TPG1-8
TPG0-9/TPG1-9
VSS2
TPG0-6
TPG0-5
TPG0-7
TPG0-4
TPG0-3
TPG0-2
TPG0-1
TPG0-0
TPG1-7
TPG1-6
TPG1-5
TPG1-4
TPG1-3
TPG1-2
TPG1-1
TPG1-0
SCLK1
AN13
AN12
RXD1
TXD1
AGND
P43
P06
P05
P04
P00
P32
P45
P44
P10
P11
P12
P63
P62
P27
P26
P25
P24
P23
P22
P21
P20
P07
CLK
P03
P02
P01
T V C
1u
2300
50V
1u
2301
50V
1u
2302
50V
50V
6460
6460
7461
7461
7462
GNDD
GNDD
GNDD
GNDD
GNDD
GNDD
GNDD
GNDD
ST24C04B1
7890
1
2
3
45
6
7
8
L2722
3
6
5
7440
L2722
1
7
8
2
4
7440
7460
18
5
15
6
14
7
13
8
11
16
1
2
12
4
17
9
3
10
AMPLIFIER
WRITE
- DETECTOR
- FILTER
- AMPLIFIER
Vref
COMP2_IN
COMP3_IN
COMP4_IN
VCC
PO/FC
VREF
CTL_IN/OUT
CTL_FB
COMP1_IN
DETECTOR
POWER-FAIL
POWER-ON AND
Vref
COMP3_OUT
COMP4_OUT
COMP1_OUT
COMP2_OUT
CTL_DATA
PO/F_OUT
CAP_REV
GND
W/R
-
+
-
+
+
-
+
-
+
-
-
+
SAA1310
57
50
47
INIT
RECP
FTA
WTR
TAS
TAE
for
TAS/TAE
Reference
Oscillograms ....4-38
AF....................4-29
AL ....................4-25
DC ...................4-35
DE ...................4-33
FV....................4-21
FM ...................4-24
HA ...................4-30
IO.....................4-27
OS ...................4-24
PS....................4-31
QMB ................4-15
QNIC ...............4-36
VP....................4-24
VS....................4-25
VS-S ................4-28