Grundig GV 27 EURO Instructions De Service page 42

Circuits imprimés et des schémas électriques / Layout of PCBs and Circuit Diagrams
Circuit principal – Procédure servo / Gestion mécanique (DE)
Chassis Board – Drive Control / Deck Electronic (DE)
1 2 3 4 5
56
3300
A 2300
50V
1u
100E
1930
3301
2301
1
MOT1
1 GND1
100E 1u 50V
55
PUSH/PULL
2
3302 2302
FLYBACK
MOT3
B OUTPUT
1u 3,7V
3 100E 50V 2 DRIVER
NC2
MOT2 STAGE1
CAP-CPC THERMAL
4
PROTECT
MOT0
OUTPUT
3 MOT2
3303 DRIVER
5
STAGE2
POS
470E
6
58 4
GNDD Vp
C
0V POSITION
5 PG_IN
DETECTOR
STAGE
14VM1
2,6V
6 ROTATION
PG/FG
5300 SPEED &
330n OUTPUT
COMMUNICATION
D STAGE LOGIC
20%
7 GND2
5VD
DEVIDE
BY 2
8
PG_out
7300
TDA5241
2311
ADAPTIVE
9 CAP_CDM
COMMUNICATION
E
10n 1,1V DELAY
50V
(HEAD-DRUM-Driver)
PG/FG
CSYNC2
57
5VD
to OSD 5VASW 5VASW
F
3313
REEL
4,4V 47k
50
3456
0,3V
7457
BC847B
10k 7455 5VD2
CSYNC
G
MMUN2112LT1
from VS
3458 0,5V GNDA
1V CSYNC1
7468
7456
BC847B
22k BC847B
(Buffer)
4,3V
TAE
7461
6460
GNDA GNDA GNDA
H
(CSYNC-Integration)
7469
BC847B
2.5V
(SWITCH)
3.2V
IWIND
I 2.5V
CTL1
CTL1
from/to AL
CTL2
CTL2
from/to AL
5VD 5VD
J
1,1V FTA
44
7466
K
TCST1030L
5VD 5VD
1,1V WTR
L
7464
TCRT5000L
M
48
N
5VD
47
3481
2k2
2461
O
46
9/14VM2
4n7
50V 5VD
..
OSCILLOGRAMS
...V MEASURED IN PLAYBACK MODE
P
...V MEASURED IN RECORD MODE
to Capstan Motor
chip components
...
1 2 3 4 5
4 - 33
GV 27 EURO, GV 7... EURO
6 7 8 9 10
to Threading Motor
14VM1
TMO2 NC TMO1
MOT1 3,7V
18
17
NC1
14,1V
CAP-CPC
3,7V
OUTPUT
MOT3 16
DRIVER 7440
STAGE3
L2722 -2A
0V
7
(OP-Amp) 2
CAP-CPC 2314
15 7,9V
0,2V
1
100n 8 2,1V
25V
4
3,7V
MOT0 14
CTL_IN 13 2,1V
0,1V 2315
CAP_TI 12
TIMING
10n
50V
7440
0,1V 2316
11
START-UP CAP-ST L2722 -2B 6 3,6V
OSCILLATOR (OP-Amp)
47n 0,2V
3
50V
5 4V
2317
1V
CAP_CDS 10
3442
22n
50V
82k
2442
5VD2 5VD2
10n
50V
7467
BC847B
4,5V (Buffer)
3,9V
TAS
7462
7461
5VD2
5VD 5VD
3,7V
1461 1460
RECP INIT
49
2463
47u
6,3V 5V
2.5V
1 CTL_FB CAP_REV 18
- AMPLIFIER
- FILTER 0V
- DETECTOR
3490
2.5V 0.1V
2 17
CTL_IN/OUT WRITE PO/F_OUT
AMPLIFIER
2473
220E
+ Vref
100p 50V
2.5V -
3 VREF CTL_DATA 16
POWER-ON AND
+
POWER-FAIL
-
DETECTOR
2467 2V 0V
4 15
PO/FC Vref COMP1_OUT
33n
50V
3474
0.1V -
5 COMP1_IN COMP2_OUT 14
+
10k
-
6 13
COMP2_IN COMP3_OUT
+
+
7 COMP3_IN GND 12
-
43
2.5V + 2.5V
8 11
COMP4_IN COMP4_OUT
-
5VD
7460
5.2V 0V
(Control-Interface)
9 VCC W/R 10
SAA1310
5.2V
5VD
3497
only < 100s
3494
4k7
100k
3495
100k
43
5VD
5VD 5VD
WTL
1,1V
7465
TCRT5000L
only < 100s
6 7 8 9 10
GRUNDIG Service
Circuits imprimés et des schémas électriques / Layout of PCBs and Circuit Diagrams
11 12 13 14 15
5VD2
5400
10u
5VD 5VD 5VD 5VD
5.2V 5.2V
56
15 58
TEST VCC1 VREF
IWIND 3402 5.1V
3448
TMO 3
P30
1k
10k
ISWS 3416
4
P31
51
22k
THIO
5.1V
10
P37 PWM8
SYNC TPG0-10/TPG1-10
11
P64 CAP0
WTRD
0V 9
5VD
P36 INT1
57
PG/FG 2.8V
12
P65 CAP1
TPG0-9/TPG1-9
FGD 2.5V
13
P66 CAP2
TPG0-8/TPG1-8
FTAD
46
P61 AN11
47
P60 AN10
3447
10k
CKDET 3407
48
22k P57 AN07
7400
3404
AGC
2.8V 49
P56 AN06
TMP91C642AF/QTDP2-3U
10k
3406
TRIV 2.8V T V C
50
P55 AN05
10k
(DECK-Controller)
TAS 3,9V
51
P54 AN04
I/R 1.5V
52
P53 AN03
8SC2 0V
53
P52 AN02
TRIA/ALI
54
P51 AN01
5VD
TAE 3,7V
55
P50 AN00
5.2V
SCL2
7301 59
P40 SCLK0
MMUN2112LT1
(Inverter) IRAF
38
IPOR
P13 TPG0-11/TPG1-11
5.1V
CSYNC1 0.5V
6
P33 C-SYNC
ENVC
7
P34 EXT
VISS
CSI 61
5402
5VD
P42 RXD0
10u
only for SECAM
60
SDA2
P41 TXD0
50
SYNC
REEL 2.6V
24
PW0
47
FTAD
CAP 0.9V
25
PW1
3410
IPOR 5.1V
40
WTRD
RESET
4k7
SYNC
14
P67 CAP3
WTLD
FOME
1
5VD
P46 INT2
WTLD
8
P35 INT0
3420
VISS
FGD 0.5V 2
P47 TI1
10k
XTAL2 XTAL1 CLK VSS1
3499
W/R
42 41 39 26
4k7
1400
2,1V 2,1V
10MHz
11 12 13 14 15
4 - 34
Reference AL ....................4-25 FV....................4-21 IO.....................4-27
Oscillograms ....4-38 DC ...................4-35 FM ...................4-24 OS ...................4-24
AF....................4-29 DE ...................4-33 HA ...................4-30 PS....................4-31
16 17 18 19 20 21
5VD
3415 3414
14VM1
10E 10E
NFR25 NFR25
14V
14VM1
7463
5.2V
BC337-40
(SWITCH)
42 7458
BC847B
for (Buffer)
45
AN12 P62
TAS/TAE
44
AN13 P63
3411
5.1V CSCP
37
P12
10k
5VD 5VD 5VD
3466
3,1V ILED
36
P11
10k
0V TMO
35
P10
0V 8SC1
34
TPG1-0 P20
3418
5.1V IREV
33
TPG1-1 P21
1k
0V CSW
32
TPG1-2 P22
5VD 5VD
31
TPG1-3 P23
30
TPG1-4 P24
MMUN2212LT1
3412
0V MTA (Inverter)
29
TPG1-5 P25
1k8
IPOR 2231 0V
28
TPG1-6 P26
47n
50V
3408
0.3V PBV
27
TPG1-7 P27
5VD 5VD 5VD 2k2
3434
0V CROT
23
TPG0-7 P07
22k
5V OFP
22
TPG0-6 P06
3571
3437
0V FFP
21
TPG0-5 P05
12k
6k8
2.6V delete for OSD 3435
SWIN
20
TPG0-4 P04
10k
2.6V 3436
HP2 DATD1
19
TPG0-3 P03
1k DATD2
3438
0V
18
TPG0-2 P02
4k7
0V only for 3HD & 4HD W/R CLKD1
17
TPG0-1 P01
SYNC
16
TPG0-0 P00
0V
CREV
5
P32
DATD1
64
RXD1 P45
DATD2
63
TXD1 P44
5VD
CLKD1
62
SCLK1 P43
VSS2 AGND
43 57
5VD 5VD
5VD 5VD
GNDD GNDD
-28V 14VM1 9/14VM2 5VD 5VASW
5VD GNDD
ST24C08
for GEMSTAR
7890
ST24C04B1
(EEPROM)
GNDD
GNDD GNDD
GNDD GNDD
from/to PS
16 17 18 19 20 21
GV 27 EURO, GV 7... EURO
QMB ................4-15 VS....................4-25
QNIC ...............4-36 VS-S ................4-28
VP....................4-24
22 23 24
5VD 5VD
7203
TFMS5360
(IR-Receiver)
5,2V 5,1V
2 3
1
5VD1
7231
4,9V
3240
68k
3241
68k
3242
68k
3243
68k
5VD
Shuttle
22 23 24
GRUNDIG Service