Table des Matières
Publicité
Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
TV
TV
0V
DC, 500mV/Div, 20µs/Div
DC, 1V/Div, 20µs/Div
IC7200-(37), Connector 1922-(4)
IC7200-(38), Connector 1922-(5)
33
34
TV
TV
0V
DC, 10V/Div, 5ms/Div
DC, 200mV/Div, 20µs/Div
IC7510-(5)
T7584 – Basis
46
47
PB
PB
0V
DC, 10V/Div, 5µs/Div
DC, 2V/Div, 5µs/Div
Trafo 5330-(4), 5331-(4)
T7330 – Gate
50
51
4 - 25
TVR 3710 FR, TVR 5100 FR, TVR 5500 FR
TV
0V
DC, 1V/Div, 5ms/Div
AC, 1V/Div, 5ms/Div
IC7200-(43), Connector 1922-(1)
IC7510-(1)
43
45
TV
0V
0V
DC, 5V/Div, 5ms/Div
DC, 5V/Div, 20µs/Div
IC7510-(8)
T7583 – Basis
49
48
STANDBY
0V
AC, 500mV/Div, 10µs/Div
DC, 200V/Div, 20µs/Div
IC7310-(10)
T7583, Collector
52
53
GRUNDIG Service
Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
Châssis étage de puissance / Power Chassis TVR 5100 ... (PLS)
TV
1
2
3
A
0V
SWITCH PCB
B
3302
4M7
TV
C
1003
1
4
0V
1
IN
2
3
D
1301
2
E
TV
F
G
9318
3330
0V
10k
52
DEMAGNETICATION
2329
8
Vdem in
MANAGEMENT
82p
0,3V
H
Vdem out
Iref
9
Sync
2327
C
Vosc
10
OSCILLATOR
T
2,6V
470p
3328
R standby
15
F
33k
2,6V
I
3327
12
R standby
P
STANDBY
(REDUCED FREQUENCY)
5k1
2325
560p
0,3V
2.5V
ERROR
14
2,5V
VOLTAGE
AMP
J
FEEDBACK
2,3V
2324
13
E/A OUT
1n
FOLDBACK
3324
FOLDBACK INPUT
CURRENT SENSE INPUT
K
100k
5
1,3V
L
HOT CIRCUIT , BE CAREFUL AND USE AN
M
ISOLATION TRANSFORMER WHEN SERVICING
DO NOT OPERATE WITHOUT CASE
CAUTION : LETHAL POTENTIALS AT PRIMARY
N
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 - 26
4
5
6
7
8
3310
2
3
1300
1
3304
270E
3337
1013
1013
2E
9310
OUT
VDR
5311
DMF-2830
1311
9311
1013
1013
T2,5AH
290V
9303
2310
2,5V
MC44603P
7310
2308
100n
16
13,5V
1
1n
7330
Rref
Vcc
3338
18V
2,2V
Vref
Iref
39E
Vref
SUPPLY &
UVLO1
REFERENCE
enable
INITIALIZATION BLOCK
BLOCK
2309
4n7
Vosc prot
Vc
2
13V
3
2,3V
OUTPUT
Set
Q
BUFFER
Latch
Iref
4
GND
Reset
Vovp out
THERMAL
Vref
Vcc
SHUTDOWN
OVERVOLTAGE
MANAGEMENT
CURRENT
SENSE
OVERVOLTAGE
PROTECTION
6
UVLO1
Dmax & SOFT-START
CONTROL
Vref
Iref
Soft Start & Dmax
2,4V
7
11
BAV21
6335
COLD GND
HOT GND
Ubat
HOT PART
4
5
6
7
8
TVR 3710 FR, TVR 5100 FR, TVR 5500 FR
9
10
11
12
9314
1924
1
Degaussing Coil
2
9315
2312
1n
3312
3313
3M9
3M9
6314
6315
1N5062
1N5062
6313
6316
5330
1N5062
1N5062
2305
2n2
7
6
5
51
329V
1
5350
5354
80E
80E
STP4NA60FI
2
50
8
2336
220p
3341
6334
5E6
BYD33D
4
3
9
10
11
12
GRUNDIG Service
Publicité
Table des Matières
