Inhaltsverzeichnis
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Verfügbare Sprachen
Verfügbare Sprachen
Platinenabbildungen und Schaltpläne / 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 - 21
TVR 3710 ..., TVR 5100 ..., TVR 5500 ...
TV
0V
AC, 1V/Div, 5ms/Div
DC, 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
48
49
STANDBY
0V
DC, 200V/Div, 20µs/Div
AC, 500mV/Div, 10µs/Div
IC7310-(10)
T7583, Collector
52
53
GRUNDIG Service
Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Leistungs-Chassis / Power Chassis TVR 3710 ... (PLSP)
TV
1
2
3
0V
A
B
3300
4M7
TV
1000
C
0V
1
2
IN
2
1301
D
1
E
TV
F
0V
9318
3330
10k
G
52
Rref
2329
Vdem in
DEMAGNETICATION
8
MANAGEMENT
82p
0,3V
Vdem out
Iref
Vosc prot
9
Sync
2327
C
Vosc
10
OSCILLATOR
H
T
2,6V
470p
3328
R standby
15
F
Iref
33k
2,6V
3327
12
R standby
P
STANDBY
(REDUCED FREQUENCY)
6k8
2325
I
560p
0,3V
2.5V
ERROR
2,5V
14
VOLTAGE
AMP
FEEDBACK
2,3V
2324
13
E/A OUT
1n
J
FOLDBACK
3324
FOLDBACK INPUT
CURRENT SENSE INPUT
100k
5
1,3V
K
L
HOT CIRCUIT , BE CAREFUL AND USE AN
ISOLATION TRANSFORMER WHEN SERVICING
M
DO NOT OPERATE WITHOUT CASE
CAUTION : LETHAL POTENTIALS AT PRIMARY
N
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
O
THE INPUT VOLTAGE SLOWLY, WHEN TROUBLESHOOTING THIS TYPE OF POWER SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
P
1
2
3
4 - 22
4
5
6
7
8
9
3310
9314
2
3
9315
1300
1
3304
270E
3337
2E
4
OUT
VDR
3
5311
DMF-2830
1311
T2,5AH
290V
9303
51
2310
2,5V
MC44603P
2308
7310
100n
16
1
13,5V
1n
7330
Vcc
3338
18V
2,2V
Vref
Iref
39E
Vref
SUPPLY &
UVLO1
REFERENCE
enable
BLOCK
INITIALIZATION BLOCK
2309
4n7
Vc
2
13V
3
2,3V
OUTPUT
Set
Q
BUFFER
Latch
GND
4
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
9
TVR 3710 ..., TVR 5100 ..., TVR 5500 ...
10
11
12
1924
1
Degaussing Coil
2
2312
1n
3312
3313
3M9
3M9
6314
6315
1N5062
1N5062
6313
6316
1N5062
1N5062
2305
5331
2n2
7
6
5
329V
1
5350
5354
80E
80E
STP4NA60FI
2
50
8
2336
220p
3341
6334
5E6
4
BYD33D
3
10
11
12
GRUNDIG Service
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Inhaltsverzeichnis
