Werbung
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Leistungs-Chassis / Power Chassis TVR 51... (GSPD)
1013 D 2
1921 C15
1926 K33
2314 D10
2324 K 2
2330 I 8
2337 L 9
2331 F10
2338 M 9
1013 E 2
1922 P20
2305 E11
2315 F 8
2325 J 2
1300 C 7
1923 M33
2308 H 7
2316 E 7
2327 I 2
2332 G11
2341 L 4
1311 E 5
1924 C10
2309 I 8
2320 L 6
2328 I10
2335 L10
2351 K14
1371 H13
1925 C19
2312 C12
2323 K 2
2329 H 2
2336 J10
2352 L15
1
2
3
4
5
B
SWITCH PCB
C
3302
4M7
1003
1013
1013
D
1
4
9310
1
IN
OUT
2
3
1301
1311
E
9311
2
1013
1013
T4AH
F
G
7310
3330
2,5V
MC44603P
10k
16
H
Rref
Vref
Iref
2329
Vdem in
DEMAGNETICATION
8
Vref
SUPPLY &
REFERENCE
MANAGEMENT
BLOCK
enable
INITIALIZATION BLOCK
330p
0,3V
52
Vdem out
Iref
Vosc prot
9
Sync
2327
C
OSCILLATOR
Vosc
I
10
T
2,6V
470p
Set
Q
3328
R standby
15
F
Latch
Iref
33k
2,6V
Reset
3327
12
R standby
P
STANDBY
(REDUCED FREQUENCY)
THERMAL
5k1
2325
SHUTDOWN
J
560p
0,5V
2.5V
ERROR
2,5V
14
VOLTAGE
AMP
CURRENT
SENSE
FEEDBACK
2,5V
2324
13
E/A OUT
1n
K
Dmax & SOFT-START
FOLDBACK
CONTROL
3324
Iref
FOLDBACK INPUT
CURRENT SENSE INPUT
100k
2,4V
5
7
1,3V
0,1V
L
9308
M
HOT CIRCUIT , BE CAREFUL AND USE AN
ISOLATION TRANSFORMER WHEN SERVICING
COLD GND
N
DO NOT OPERATE WITHOUT CASE
HOT GND
CAUTION : LETHAL POTENTIALS AT PRIMARY
O
BECAUSE A HOT GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION
TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE
P
THE INPUT VOLTAGE SLOWLY, WHEN TROUBLESHOOTING THIS TYPE OF POWER SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
HOT PART
Q
1
2
3
4
5
4 - 19
TVR 37..., TVR 51..., TVR 55...
2353 K18
2375 M14
2392 J14
2516 M24
2552 G22
2581 H21
2592 J33
2362 F14
2377 I13
2512 K27
2517 N20
2553 M30
2582 M32
2593 D27
2371 G14
2378 L14
2513 M22
2519 O25
2555 N28
2583 H22
2594 G21
2373 G15
2379 K14
2514 L20
2520 N26
2573 E24
2586 F25
3304 C 6
2374 H15
2381 H14
2515 N19
2551 K30
2575 F26
2587 E24
3310 B 9
6
7
8
9
10
3310
2
3
1924
1
Degaussing Coil
2
1
1300
3304
270E
3337
2E
6314
6315
1N4006GP
1N4006GP
5312
6313
6316
UF2327
1N4006GP
1N4006GP
2305
1n
290V
9303
51
2308
14,5V
1
1n
7330
315V
5350
5354
Vcc
3338
80E
80E
18V
2,7V
STP4NA60FI
39E
UVLO1
0,1V
2309
4n7
Vc
2
13,5V
3
3V
OUTPUT
BUFFER
4
GND
Vovp out
Vref
Vcc
50
OVERVOLTAGE
2336
MANAGEMENT
220p
3341
6334
OVERVOLTAGE
5E6
PROTECTION
6
BAV21
UVLO1
Vref
Soft Start & Dmax
11
BAV21
6335
Ubat
6
7
8
9
10
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
3312 D11
3328 I 2
3335 I 9
3341 K11
3350 L18
3356 M 8
3362 O 8
3313 D12
3330 H 4
3336 F11
3342 H 2
3351 L16
3357 N 8
3363 N 8
3358 N 8
3322 L 3
3331 G 9
3337 D 9
3343 N16
3352 K17
3364 I15
3324 K 2
3333 H 7
3338 H 8
3347 K 9
3353 K18
3359 L 4
3375 M14
3327 J 2
3334 I 9
3339 I 9
3348 L 3
3354 J18
3360 I14
3391 E14
11
12
13
14
15
to Signal-Chassis (TV) 1909
2312
1n
3312
3313
3M9
3M9
5361
33u
3391
3393
32V
5330
5362
6k8
6k8
7331
9
80E
TL431CLP
K
5363
R
80E
12
A
6361
7
BYW36
15
6371
6
5370
13
80E
BYV27-100
2371
5
470p
6372
BYV27-100
9304
14
1371
2381
T2,5A
1
470p
15
16
3360
3364
390E
390E
2
15
8
6351
11
BYW98-200
2351
4
470p
10
6374
3
BYD33D
2378
1n
GNDAU
11
12
13
14
15
4 - 20
3393 E14
3514 N24
3522 P26
3529 N27
3537 H31
3555 M30
3578 L26
3394 E16
3517 N24
3523 P26
3530 M20
3538 I28
3556 P27
3579 M26
3395 E16
3518 M26
3524 M28
3531 J28
3551 K30
3558 N30
3580 H19
3512 M22
3519 N27
3525 P25
3532 H31
3553 N29
3559 P24
3582 L32
3513 M22
3521 O27
3527 D22
3536 M19
3554 M29
3577 G21
3584 M33
16
17
18
19
20
HORIZONTAL
VERTICAL
DEFLECTION
STBY
33A
33V-REG
8
14H
4,9V
14H
1,5V
7587
BC547B
47
5364
-7V
80E
TDA3653C/N2
5V-SWITCH
5,4V
9A
6352
Output
Thermal
BZX79-C15
3354
Stage
7352
15V
Protection
Protection
14H
MTP3055E
220k
7350
2
3
LM317T
8,5V
5,4V
Driver
4,1V
1
45
5V-REG
GND
15V
2,3V
4
1
2
3
0V
2,3V
0V
7351
BC547B
81mV
5V-STBY
2514
1n
3536
3530
5k6
1k8
STBY
33
43
to Signal-Chassis (TV) 1911
16
17
18
19
20
TVR 37..., TVR 51..., TVR 55...
3585 H22
3595 I26
5312 D 8
5353 H17
5364
3587 E23
3596 F22
5330 E11
5354 H11
5370
3588 H21
3597 G25
5361 D14
537
5350 H10
3591 C28
3598 F22
5362 E13
5372
5351 D17
3592 I31
3599 I24
5352 H17
5363 E13
5373
21
22
23
5510
3527
1k
Ubat
82,7V
2587
1u
8V
49
8
7583
BU1508DX
9523
LINE
H-DRIVE AMP
0,95V
TRA
18V
0,47V
7584
MPSA43
7510
VER. STAGE
Voltage Stab.
Guard
&
Circuit
Current Source
Flyback
Output Stage
Generator
5
7
8
6
9
15V
28V
30mV
8V
28V
6513
BAV21
2513
100u
48
46
34
21
22
23
GRUNDIG Service
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