Inhaltsverzeichnis
Werbung
GV 27 ..., GV 47 ..., GV 7...
Chassisplatte – Netzteil / Chassis Board – Power Supply (PS)
0075 H 1
1356 I15
2355 G 4
2361 D 9
2367 G13
2373 G16
2379 E 9
3350 C 4
1350 C14
1370 J 7
2356 G 6
2362 H 9
2368 E13
2374 I12
2380 E 8
3351 E 2
1351 H15
2350 D 2
2357 H 9
2363 C13
2369 G14
2375 G10
2381 D 7
3352 E 2
2352 F 2
2383 H21
1352 J15
2358 G19
2364 E13
2370 G15
2376 C15
3353 F 1
1353 J 5
2353 G 2
2359 E15
2365 F13
2371 I13
2377 C13
2385 H22
3354 G 1
1355 H13
2354 H19
2360 I 6
2366 F10
2372 A14
2378 C14
2386 E 2
3355 G 3
1
2
3
4
5
A
B
7354
MC44603P
C
3350
2,5V
(Power-Supply-Controller)
10k
1%
16
Rref
Vref
Iref
Vdem in
DEMAGNETICATION
8
Vref
SUPPLY &
REFERENCE
MANAGEMENT
enable
BLOCK
INITIALIZATION BLOCK
Vdem out
4
D
Iref
Vosc prot
9
Sync
2350
C
OSCILLATOR
Vosc
10
T
470p
50V
Set
Q
3351
R standby
2%
2,5V
15
F
Latch
Iref
22k
Reset
3352
R standby
0,7V
12
E
P
STANDBY
(REDUCED FREQUENCY)
5k6
THERMAL
SHUTDOWN
2386
470p
2.5V
50V
ERROR
14
VOLTAGE
AMP
CURRENT
SENSE
FEEDBACK
not used
F
2352
2,2V
13
E/A OUT
1n
NP0
50V
Dmax & SOFT-START
FOLDBACK
3356
CONTROL
22k
Iref
FOLDBACK INPUT
CURRENT SENSE INPUT
0,1V
5
0V
7
G
H
0075
GND
1
1
...
I
OSCILLOGRAMS
220-240V 50/60 Hz
...V
MEASURED IN PLAYBACK MODE
...V
MEASURED IN RECORD MODE
1353
... chip components
2
T1,25A
L
J
COLD GND
HOT GND
K
* Discharge C2362 before repairing !!!
1
2
3
4
5
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
3356 G 2
3362 G 4
3373 J 6
3379 A14
3385 B14
3391 G20
3998 F17
5354 J14
3357 E 9
3363 F 9
3374 A12
3380 H21
3386 B15
3392 J11
3999 H17
5355 F15
3358 G 3
3365 G 9
3375 A13
3381 G20
3387 E14
3393 J12
5350 F15
5358 E13
3382 H22
3359 G 5
3367 C10
3376 A14
3388 E15
3394 F15
5351 H14
5361 C10
3360 D 8
3369 J 6
3377 A15
3383 G10
3389 E14
3395 A15
5352 I 7
5368 E10
3361 D 8
3370 J 7
3378 B15
3384 B13
3390 I20
3396 B15
5353 J11
6350 C10
6
7
8
9
10
SOC1012T
(Optocoupler)
5361
22u
10,6V
6350
3367
not used
BAV21
not used
1
Vcc
18V
UVLO1
10,1V
3360
Vc
2
1
68E
7350
3361
OUTPUT
3
STP3NA60FI
BUFFER
(Switching-Transistor)
47E
4
GND
qpsblech
Vovp out
not used
Vref
Vcc
OVERVOLTAGE
MANAGEMENT
2
OVERVOLTAGE
PROTECTION
6
UVLO1
Vref
Soft Start & Dmax
2,4V
11
*
2362
22u
400V
6360
DF06M
5352
UF1922V4
1370
3373
220E
HOT CIRCUIT , BE CAREFUL AND USE AN
optional
optional
ISOLATION TRANSFORMER WHEN SERVICING
3369
3370
39k
39k
DO NOT OPERATE WITHOUT CASE
CAUTION : LETHAL POTENTIALS AT PRIMARY
6
7
8
9
10
GV 27 ..., GV 47 ..., GV 7...
6351 E 7
6357 F13
7350 D 9
7357 F19
9997 I15
6352 F 8
6358 G13
7351 A10
7358 D15
9998 I15
6353 G 8
6359 H13
7352 B12
7359 F14
6354 F10
7353 I19
6360 I 9
7420 F15
6355 C13
6371 B13
7354 C 5
9995 H13
6356 D13
6372 C16
7356 I21
9996 H15
11
12
13
14
15
4
1
7351
6
3
3376
0E
3374
3,8V
5
2
K
270E
7352
R
2,4V
TL431CLP
(REF-Regulator)
A
6371
3384
3385
BYD33D
100E
3k3
3
6355
1350
4
14
BYD33D
T100mA
2377
500V
470p
10%
16
not used
6
(9/14VM2-SWITCH)
14,3V
12
6356
Wind 14,4V
7358
play 8,2V
1
BYD33D
BD438
14,3V
0,1V
2359
11
2368
5358
220n
25V
FB
1n
0V
7359
500V
15
BC847B
0,7V
6357
(Buffer)
SBYV27-200
(12V-Regulator)
7420
L78M12CV
10
6358
14,3V
L4812CV
BYV27-200
for Stereo
7
for Stereo
9995
9996
13
for Mono
6359
1355
5351
1351
18
22u
SB340
T1A
T500mA
BYW98-200
for Mono
for Mono
9997
for Mono
1356
17
T1A
9998
for Mono
5354
1352
10u
T500mA
for Stereo
5353
3392
3393
3M3
3M3
11
12
13
14
15
4 - 31
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
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
3395
22k
3386
330E
< 6W Standby
3394
12SW
2k2
5350
33V
10u
5355
7357
330n
20%
STD17N06
(SWITCH)
;
12V
GNDD
for Stereo
7353
for Stereo
STD17N06
(SWITCH)
16
17
18
19
20
QMB ................4-15
VS....................4-25
QNIC ...............4-36
VS-S ................4-28
VP....................4-24
21
22
23
A
B
33V
to FV
C
-28V
to I/O,DE/DC
HEHI
HELO
D
CSW
14VM1
9/14VM2
12VA
to AL,AF
E
5VA
to VPS/PDC,
I/O,FV,AF
12SW
to AL,FV
F
G
5VASW
to VS_S,HA,DE/DC
OS,VS,FV
5VD
H
I
7356
ISTBY
BC847B
from DE/DC
(Buffer)
5VD
to DE/DC
J
K
PS(40393)
21
22
23
4 - 32
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