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Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams GV44…, GV45…, GV46… Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams GV44…, GV45…, GV46…
4 - 26 GRUNDIG Service
4 - 26 GRUNDIG Service
Chassisplatte – FM-Ton / Family Board – FM-Sound (AF)
24K
3400
68K
3382
470
Y 3430
470
Y
3423
390
Y
3427
390
Y
3425
10K
3375
390
Y
3365
390
Y
3362
6,8K
3370
6,8K
3372
470
3367
470
3363
100K
3410
100K
3412
3,3M
3415
1K
3397
5,6K
3442
2,2K
3440
1%
19,1K
3452
47K
Y
3420
47K
Y
3421
47K
3437
100K
3392
1K
3389
68K
3387
33K
3403
470K
3374
5,6K
3398
1K
X3395
120
3369
120
3368
470P
Y
2329
470P
Y
2328
470P
Y 2265
470P
Y 2262
220P
2290
0,1U
2312
0,22U
2333
0,22U
2332
0,22U
2318
0,1U
2302
5%4,7N
2316
0,22U
2317
22N
2298
22N
2295
10N
2288
0,1U
Y
2323
0,1U
Y 2324
0,1U
Y2321
0,22U
2280
5%4,7N
2278
0,1U
Y2320
0,22U
Y 2327
0,22U
Y 2334
10N
2309
10N
2308
+
47U/25V
2305
+
47U/25V
2307
+
10U/50V
2310
+
2,2U/100V
2270
+
2,2U/100V
2272
+
10U/50V
2313
+
22U/25V
2315
+
100U/16V
2300
+
100U/16V
2296
+
2,2U/100V
2292
+
X
2,2U/100V
2287
+
22U/25V
2277
+
10U/50V
2275
SUPPLY & Vref
ONE
SHOT
MUTE
IIC-BUS
LEVEL
DETECT
HF
HF
LIMITER
LIMITER
HF
HF
LPF
LPF
+
1,3MHz
1,4MHz
CCO
CCO
1,7MHz
1,8MHz
LOOP
FILTER
LOOP
FILTER
AUDIO
AUDIO
CLIPPER
CLIPPER
S&H
S&H
GAIN
ADJUST
AUDIO
AUDIO
LPF
LPF
+
+
-
-
+
+
+
+
NOISE REDUCTION
NOISE REDUCTION
LLLL
L
L
L
RRRR
R
R
R
TDA 9610
SCL
SDA
12504925243536373839
31
32
22
23
27
28
30
29
18 34 33 42 43 44 45 46 47 52 48 4 3 6 5 8 10 9 53 5826
63
62
54
56
60
13575920192141406451111214171615
7
61
55
7320
BC858C
7335
F
0,22U
Y 2331
F
0,22U
Y 2326
22K
3402
10K
3435
47K
3385
47K
3380
2,2K
3390
4,7U/50V
2282
4,7U/50V
2285
AUDIO-L
AUDIO-R
AUDIO
AUDIO-R
AUDIO-R
AUDIO-R
AUDIO-L
AUDIO-L
AUDIO-L
SDA
SCL
AUDIO-L
AUDIO-R
AUDIO
AUDIO-L
AUDIO-R
AUDIO
AUDIO
100UH
5302
100UH
5295
RLS4148
6265
RLS4148
6262
BC858C
7263
1910
1910
Y
1910
Y
1910
6
5
4
3
2
1
11
10
9
8
7
Y
1518
BC818-40
7262
BC818-40
7265
1
1
MUTE
U
MUTE
U
+12VD
+12VD
+5VD
J
I
H
G
F
E
D
C
B
A
15
15
14
14
13
13
12
12
11
11
10
10
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
25
9518
95189518
(BEDIENEINHEIT IIB/KEYBOARD UNIT)
(BEDIENEINHEIT IIB/KEYBOARD UNIT)
(BEDIENEINHEIT IIB/KEYBOARD UNIT)
PCB DISPLAY CONTROL IIB,DC
PCB DISPLAY CONTROL IIB,DC
PCB DISPLAY CONTROL IIB,DC
HEAD PHONE
HEAD PHONE
A
A
AL 3290
REC
PB
A
B
A
A
AV
AV
IO 2375
REC
REC
IO 2377
MOD.
IO 2372
IO 2370
1518
1518
E3
E3
E3
E3
MICRO
MICRO
MICRO
EE/PB
EE/PB
FE 2795
IO 2373
AL 2247
IO 3474
IO 3484
AL 3292
DE 7020/13
MICRO
NC
IO 3463
IO 3462
CFR
AER
AEL
PBL
CFL
TDK
GND
LINE OUT R
LINE OUT L
LINE IN R
LINE IN L
HIFI
...V Voltages measured in record
...V Voltages measured in playback
0,6V
5V
1,2V
0V
5V
0V
0V
0,1V
0V
0,1V
0V
2,6V
1,2V
0V
3,8V
2,5V
3,8V3,8V3,8V
3,7V
6,5V
3,8V
3,8V
3,8V
3,8V
2,4V
3,8V
2,4V
3,8V
3,8V
3,8V 3,8V
3,8V
2,8V
2,8V
3,4V
3,1V
6V
6V
2V
0,5V
5,5V
5,5V
11,6V
2,5V
0V
0V
0V
3,2V
2,5V
4,9V
4,9V
3,7V
3,7V
3,7V
3,7V
3,7V
3,7V
3,7V
3,8V
3,8V
6061
66
62
26
65