Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
Circuits imprimés et schémas électriques / Layout of PCBs and Circuit Diagrams
4 - 11
GRUNDIG Service
4 - 12
GRUNDIG Service
Alimentation / Power Supply (OSM…)
4
3
2
1
Add for OSM41
OSM43: Not used
OSM42: 4E7
OSM41: 22E
Only used for OSM
Add for OSM41
Delete for OSM41
Not used
BD438
OSM
OSM
OSM
HOT GND
COLD GND
220-240V 50/60 Hz
4
5
6
1
7
8
9
10
11
12
13
14
15
16
17
2
3
H
G
F
K
E
D
C
B
A
J
I
4
5
6
1
7
8
9
10
11
12
13
14
15
16
17
2
3
3212
47E
3201
22E
3209
15E
3138
18k
3122
680E
3468
470E
3475
47k
3467
680E
3466
1k
3465
470E
3121
220k
3123
10E
3211
270E
3208
1k
3205
3206
330E
3k3
3207
3k3
3203
2M2
3106
3M9
3102
3M9
3103
3129
100k
3130
100k
100k
3210
1%
30k
3128
1%
1E1
3135
4k7
3136
100E
3134
15E
3133
47E
3132
1%
5k6
3127
TOL:1%
10k
3139
22k
3124
10k
3125
2k2
3126
3104
470E
3216
10k
1k
347
10k
3479
180E
3480
180E
3481
2131
470n
470p
2105
470p
2107
2124
1n
22n
2211
100n
2217
1n
2113
100n
2101
100n
2108
2116
4n7
2121
22n
1n
2212
22n
2210
2130
100n
2128
680p
2122
1n
33n
2103
2120
2n2
100n
2109
100n
2203
7406
BC558C
7411
9014
9024
BZX79-C27
6105
BZX79-C27
6101
BZX79-C33
6207
BZX79-C27
6106
BZX79-C27
6102
BAV21
6211
1N5062
6114
SB340
6210
BAV21
6115
BYT52M
6206
BYW98-200
6204
BYW98-200
6203
BYT52M
6201
BYV10-20
6116
BYT52M
6103
BYT52M
6104
BYT52M
6135
BYT52M
6136
1201
8
9
7
TQ2-5V
1202
10
1
TQ2
1201
1
10
TQ2
22u
5209
22u
5203
22u
5210
22u
5207
22u
5204
7210
SOC1012T
1
2
3
4
5
6
1101
T1,25AH
680u
2205
2114
100u
680u
2214
47u
2209
220u
2206
680u
2204
res
2201
2112
68u
5114
9
6
12
17
16
14
15
10
11
18
13
3
4
7
3101
6110
DF08M
BC548B
7407
7105
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
MC44603P
(REDUCED FREQUENCY)
AMP
ERROR
FOLDBACK
MANAGEMENT
OSCILLATOR
Iref
DEMAGNETICATION
Vdem out
STANDBY
2.5V
P
F
T
FOLDBACK INPUT
E/A OUT
R standby
Sync
R standby
VOLTAGE
C
FEEDBACK
Vdem in
CURRENT SENSE INPUT
Vosc
REFERENCE
Vref
BLOCK
Iref
enable
Vref
CURRENT
SENSE
Vosc prot
Iref
Dmax & SOFT-START
INITIALIZATION BLOCK
Set
Latch
Reset
SHUTDOWN
THERMAL
CONTROL
SUPPLY &
Q
Rref
Soft Start & Dmax
Iref
Vovp out
Vref
BUFFER
OVERVOLTAGE
MANAGEMENT
UVLO1
Vref
OVERVOLTAGE
PROTECTION
UVLO1
Vcc
Vcc
OUTPUT
GND
18V
Vc
STP3NA60
7135
2
1
7253
TL431CLP
R
A
K
CAUTION : LETHAL POTENTIALS AT PRIMARY
DO NOT OPERATE WITHOUT CASE
ISOLATION TRANSFORMER WHEN SERVICING
HOT CIRCUIT , BE CAREFUL AND USE AN
2k2
3204
5103
UF1922A4