Laufwerksteuerung / Deck-Elektronik (De) - Grundig GV 27 Servicehandbuch

Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Chassisplatte – Laufwerksteuerung / Deck-Elektronik (DE)
Chassis Board – Drive Control / Deck Electronic (DE)
1 2 3 4 5
56
A 3300
2300
1u 50V
100E
1930
3301 2301
1
MOT1
1
1u GND1
100E 50V 55
PUSH/PULL
2 3302
2302
MOT3 FLYBACK
B
OUTPUT
1u 50V 3,7V DRIVER
3 100E 2 NC2
MOT2 STAGE1
CAP-CPC
THERMAL
4 PROTECT
MOT0
3 OUTPUT
MOT2
3303
DRIVER
5
STAGE2
POS
470E
6 58
4 Vp
GNDD
C
0V POSITION
5
PG_IN DETECTOR
STAGE
14VM1
2,6V
ROTATION
6 PG/FG
5300 SPEED &
330n OUTPUT
COMMUNICATION
STAGE
D 20% LOGIC
7
GND2
5VD
DEVIDE
BY 2
8 PG_out
7300
TDA5241
2311
9 ADAPTIVE
CAP_CDM
COMMUNICATION
E
1,1V DELAY
10n
50V
(HEAD-DRUM-Driver)
PG/FG
CSYNC2
57
5VD
to OSD 5VASW 5VASW
F
3313
REEL
47k
4,4V
50
3456
0,3V
7457
BC847B
10k 7455 5VD2
CSYNC
G MMUN2112LT1
from VS 0,5V
3458 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
chip components to Capstan Motor
...
1 2 3 4 5
4 - 33
GV 27 ..., GV 47 ..., GV 7...
6 7 8 9 10
to Threading Motor
14VM1
TMO2 NC TMO1
MOT1 18 3,7V
NC1 17
14,1V
CAP-CPC
3,7V
OUTPUT 16
MOT3
DRIVER 7440
STAGE3
L2722 -2A
7 0V
(OP-Amp) 2
2314
CAP-CPC 7,9V
15 0,2V
1
100n
8 2,1V
25V
4
3,7V
MOT0 14
2,1V
CTL_IN 13
0,1V 2315
12
CAP_TI
TIMING
10n
50V
7440
0,1V 2316
CAP-ST 11 -2B 3,6V
START-UP L2722 6
OSCILLATOR
(OP-Amp)
47n
0,2V
3
50V
5 4V
2317
10 1V
CAP_CDS
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
2.5V 5V
1 18
CTL_FB CAP_REV
- AMPLIFIER
- FILTER 0V
- DETECTOR
3490
2.5V 0.1V
2 CTL_IN/OUT PO/F_OUT 17
WRITE
AMPLIFIER
2473
220E
+ Vref
50V
100p
2.5V -
3 16
VREF CTL_DATA
POWER-ON AND
+
POWER-FAIL
-
DETECTOR
2467
2V 0V
4 PO/FC Vref COMP1_OUT 15
33n
50V
3474
0.1V -
5 14
COMP1_IN COMP2_OUT
+
10k
-
6 COMP2_IN COMP3_OUT 13
+
+
7 12
COMP3_IN GND
-
43
2.5V + 2.5V
8 COMP4_IN COMP4_OUT 11
-
5VD
7460
5.2V 0V
(Control-Interface)
9 10
VCC W/R
SAA1310
5.2V
5VD
3497
only < 100s
3494
4k7
100k
3495
100k
43
5VD
5VD 5VD
1,1V WTL
7465
TCRT5000L
only < 100s
6 7 8 9 10
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
11 12 13 14 15
5VD2
5400
10u
5VD 5VD 5VD 5VD
5.2V 5.2V
15 58 56
TEST VCC1 VREF
3402
IWIND 5.1V
3448 3
TMO
P30
1k
10k
3416
ISWS
4
P31
51
22k
THIO
5.1V
10
P37 PWM8
TPG0-10/TPG1-10
SYNC
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
3407
CKDET
48
P57 AN07
22k
7400
3404
AGC 2.8V
49
P56 AN06
TMP91C642AF/QTDP2-3U
10k
3406 2.8V
TRIV 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
59
7301
P40 SCLK0
MMUN2112LT1
(Inverter) IRAF
38
IPOR
P13 TPG0-11/TPG1-11
5.1V
CSYNC1 0.5V
6
P33 C-SYNC
ENVC
7
VISS P34 EXT
CSI
5402 61
5VD
P42 RXD0
10u
only for SECAM
SDA2 60
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
27 0.3V PBV
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
DATD2
1k
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
63 DATD2
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 ..., GV 47 ..., GV 7...
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