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Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
C.I. Ampli de têtes – Commande du moteur de tambour de têtes
Head Amplifier Board – Headwheel Motor Control
1930 I 5
2303 G 2
2308 E 6
2313 A 6
1931 I 4
2304 F 2
2309 A 4
2314 E 4
2300 G 5
2305 G 3
2310 E 4
2315 G 4
2301 H 4
2306 E 5
2311 A 5
2316 A 4
2302 H 5
2307 E 6
2312 A 6
2317 A 3
I
H
2
HMO1
1
HMO3
2
3
HMO2
3
HMO0
4
POS
5
GNDD
6
4
7
1931
GNDA
L1
1930
5
REEL
1
+5D
2
GNDM2
3
GNDD
4
6
+14M2
2320
5
0
PG/FG
6
7
3313
15k
S
I
H
6
2318 E 3
3303 G 2
3312 H 5
2319 A 4
3304 F 3
3313 H 7
2320 H 6
3305 F 5
5301 E 4
3301 G 3
3306 E 5
6300 A 3
3302 F 2
3307 H 4
7301 D 6
G
F
3303
2304
1u
100E
3302
2303
1u
100E
3304
2305
1u
100E
3301
270E
GNDD
GNDD
3305
GNDA
1k
G
F
E
D
C
1
GND1
PUSH/PULL
FLYBACK
OUTPUT
2
DRIVER
NC2
STAGE1
CAP-CPC
THERMAL
PROTECT
OUTPUT
3
MOT2
DRIVER
STAGE2
2314
4
Vp
2u2
2310
0
POSITION
5
PG_IN
DETECTOR
STAGE
6
ROTATION
PG/FG
SPEED &
OUTPUT
COMMUNICATION
STAGE
LOGIC
7
GND2
DEVIDE
BY 2
8
PG_out
7301
TDA5241
2308
9
ADAPTIVE
CAP_CDM
COMMUNICATION
DELAY
10n
E
D
C
TVR 37...FR, TVR 51...FR, TVR 55...FR
B
A
0
2317
MOT1
18
17
NC1
CAP-CPC
GNDM2
0
2316
OUTPUT
16
MOT3
DRIVER
STAGE3
2309
CAP-CPC
15
100n
2319
0
14
MOT0
13
CTL_IN
2311
12
CAP_TI
TIMING
10n
2312
11
CAP-ST
START-UP
OSCILLATOR
47n
2313
10
CAP_CDS
22n
0
NOT USED
4
ONLY FOR OHAD 4/X
DELETE FOR NEW DE-SW
S
B
A
GRUNDIG Service
2
2
3
3
4
4
5
5
6
6
7
7
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Table des Matières
