Werbung
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Leistungs-Chassis / Power Chassis TVR 55... (GSPD)
1013 D 2
1572 J31
1925 C19
2312 C12
1013 E 2
1921 C15
1926 J33
2314 D10
1300 C 7
1922 P20
2305 E11
2315 F 8
1311 E 5
1923 M33
2308 H 7
2316 D 7
1924 C10
2320 L 5
1371 H13
2309 H 8
1
2
3
SWITCH PCB
B
C
3302
4M7
1003
1
D
1
IN
2
1301
E
2
F
G
H
DEMAGNETICATION
2329
Vdem in
8
MANAGEMENT
330p
0,3V
52
Vdem out
Iref
9
Sync
2327
C
OSCILLATOR
10
T
I
2,6V
470p
3328
R standby
15
F
33k
2,6V
3327
R standby
12
P
(REDUCED FREQUENCY)
5k1
2325
J
560p
0,5V
2.5V
ERROR
14
2,5V
VOLTAGE
AMP
FEEDBACK
2,5V
2324
13
E/A OUT
1n
K
FOLDBACK
3324
FOLDBACK INPUT
100k
L
M
HOT CIRCUIT , BE CAREFUL AND USE AN
ISOLATION TRANSFORMER WHEN SERVICING
DO NOT OPERATE WITHOUT CASE
N
CAUTION : LETHAL POTENTIALS AT PRIMARY
BECAUSE A HOT GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT, AN ISOLATION
O
TRANSFORMER MUST BE USED. ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE
THE INPUT VOLTAGE SLOWLY, WHEN TROUBLESHOOTING THIS TYPE OF POWER SUPPLY
P
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
Q
1
2
3
4 - 22
2323 K 2
2329 H 2
2336 J10
2337 L 9
2324 K 2
2330 I 8
2325 J 2
2331 F10
2338 M 9
2327 I 2
2332 G10
2341 L 4
2328 H10
2335 L10
2351 K14
4
5
3304
270E
1013
1013
4
9310
OUT
3
1311
9311
1013
1013
T4AH
7310
3330
2,5V
MC44603P
10k
16
Rref
Vref
Iref
Vref
SUPPLY &
REFERENCE
enable
INITIALIZATION BLOCK
BLOCK
Vosc prot
Vosc
Set
Q
Latch
Iref
Reset
STANDBY
THERMAL
SHUTDOWN
CURRENT
SENSE
Dmax & SOFT-START
CONTROL
Iref
CURRENT SENSE INPUT
Soft Start & Dmax
5
7
2,4V
11
1,3V
0,1V
9308
COLD GND
HOT GND
HOT PART
4
5
2352 L15
2374 H14
2381 H14
2515 N19
2375 M14
2392 I14
2353 J18
2516 M24
2362 F14
2377 I13
2512 K27
2517 N20
2371 G14
2378 L14
2513 M22
2519 O25
2373 G15
2379 J14
2514 L20
2520 N26
6
7
8
1300
5312
UF2327
2308
14,5V
1
1n
Vcc
3338
18V
39E
UVLO1
2309
4n7
Vc
2
13,5V
3V
3
OUTPUT
BUFFER
4
GND
Vovp out
Vref
Vcc
OVERVOLTAGE
MANAGEMENT
OVERVOLTAGE
PROTECTION
6
UVLO1
Vref
Ubat
6
7
8
TVR 37..., TVR 51..., TVR 55...
2551 K30
2575 F26
2587 E24
2552 G22
2581 H21
2589 C27
2553 M30
2582 M32
2592 I33
2555 N28
2583 H22
2593 D26
2574 E25
2586 F25
2594 F21
9
10
3310
2
3
1924
1
Degaussing Coil
2
1
3337
2E
6314
6315
1N4006GP
1N4006GP
6313
6316
1N4006GP
1N4006GP
2305
1n
290V
9303
51
7330
315V
5350
5354
80E
80E
2,7V
STP4NA60FI
0,1V
50
2336
220p
3341
6334
5E6
BAV21
BAV21
6335
9
10
GRUNDIG Service
3304 C 6
3324 K 2
3310 B 9
3327 J 2
3312 D11
3328 I 2
3313 D12
3330 H 4
3322 L 3
3331 G
11
2312
1n
3312
33
3M9
3M
5330
7
6
5
1
2
8
4
3
11
Werbung
