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Platinenabbildungen und Schaltpläne / Layout of the PCBs and Circuit Diagrams
+B
11
KH335
3
R
CC328
M
2
L
3
0,1u
C331
CC381
10
1
+
7233
470u/10V
100n
5
KH
320
R203
CC382
KH
1
4
6
M
KH
M
1
M
100n
R2203
KH
M
M
M
KH
1
VIDEO-COLOR
CUC7305
VIDEO-COLOR
21" EFS83X191
21" SN PHI
20"
21" SAMSUNG
14" ORION
14" PHILIPS
17"
20" SAMSUNG
20" SAMSUNG
155X01/27,5kV
EAX93X02
SN / 27,5kV
47p
47p
47p
390
360/2%
360/2%
360/2%
360/2%
0
0
100k
100k
100k
100k
100k
LS4148
LS4148
LS4148
LS4148
LS4148
0
0
15k
15k
100k
100k
100k
100k
100k
1,8
1,8
1,8
1,8
1,8
1,8
1,5
1,5
0,33
0,33
0,33
0,33
0,33
1,5
1
1
0,51
0,51
0,51
0,51
0,51
7,3n
7,8n
6,8n
8,3n
8,3n
7,5n
9n
3,9k
1,5k
2,2k
2,2k
2,2k
2,2k
270
0,42u/MKP4
0,42u/MKP4
0,26u/MKP4
0,33u/MKP4
0,33u/MKP4
0,33u/MKP4
0,33u/MKP4
-115.95
-114.95
-114.95
-114.95
-114.95
820
820
820
820
820
0,68u
0,68u
0,68u
0,68u
0,68u
1,2u
1,2u
-850.51
-838.51
-838.51
-850.51
838.51
1,5k/4W
820 OHM/2W
820 OHM/2W
1,5k/4W
820/2W
13k
13k
10k
12k
10k
10k
10k
-653.01
-653.02
-031.54C
-031.54C
-031.54C
-031.54C
-031.57
7,5/1W
3,3/1W
4,7/1W
2,7/2W
2,7/2W
2,2/2W
1,5/1W
0,22u
0,22u
0,15u
0,15u
0,15u
0,15u
0,15u
29201-512.97
29201-514.97
29201-513.97
29201-513.97
29201-513.97
29201-513.97
29201-519.97
29201-519.97
8311-200-020
8311-200-020
8311-200-010
8311-200-010
8311-200-010
8311-200-016
8311-200-010
8311-200-012
47u
47u
47u
100u
100u
100u
150u
10k
10k
10k
10k
10k
10k
6,8k
1,1k
1,1k
1k
1k
1k
1k
1,1k
2,2u/100V
2,2u/100V
2,2u/100V
2,2u/100V
2,2u/100V
2,2u/100V
0,47u/100V
110k
110k
100k
100k
100k
100k
100k
1
1
0,91
0,91
0,91
0,91
0,56
15k
12k
15k
15k
15k
15k
15k
BYV37
BYV37
BYV37
BYV37
BYV37
BYV37
BYT56M
0
0
0
270
270
270
270
TR550
*
29201-
HS
HS
L
KP2
U
F
UF
U
G2
+A
UG2
R542
CR541
A
*
GND
M
I
M
M
R543
L543
D543
ca. 130V/14"
+C
G
ca. 200V/17-21"
220u
10/1W
BYV16
37cm
G'
M
*
R546
C
M
1,2k
BR546
0" SAMSUNG
37cm
H 20" SAMSUNG
F
F
UR 20" SAMSUNG
N 20" SAMSUNG
ON 20" SAMSUNG
390p
M
H
+D
/25V
C444
27
R442
D444
B
*
1N4936
0,75W
M
Die Hochspannung fuer die Bildroehre
und die damit auftretende Roentgenstrahlung
ist abhaengig von der exakten Einstellung
der Netzteilspannung +A.
Schutzschaltungen im Geraet
duerfen nur kurzzeitig ausser Betrieb
gesetzt werden, um Folgeschaeden
am Chassis oder an der Bildroehre zu vermeiden.
The high tension for the picture tube
and thus the developing X-radiation depends on
the precise adjustment of the +A power supply.
To avoid consequential damages to the chassis
or the picture tube the integrated protective
circuits are allowed to be put out of operation
only for a short time.
4 - 15
Oszillogramme Chassis
M
8
3
7
2
6
1
5
4
3
3
2
2
1
1
ST-KH/CH
LS
M
1
1
500mV/cm, 5µs/cm
w.w.
2
11
KH3335
V2BK003
3
R
2
L
10
1
360/2%
CC3381
100k
100n
LS4148
100k
1,5
M
KH
KH
1,5
CC3382
0,51
M
KH
9n
100n
6
100mV/cm, 20µs/cm
270
0,33u/MKP4
-114.95
820
1,2u
838.51
820/2W
10k
-031.57
0,22/2W
0,15u
0,1u
150u
6,8k
11
200mV/cm, 1µs/cm
1,1k
0,47u/100V
100k
0,56
15k
BYT56M
270
16
1V/cm, 20µs/cm
+B
1k
ST-BR-HZ
+C
1
M
R553
2
M
1,5k
3
R554
21
1V/cm, 5ms/cm
F
4
X
*
M
5
SEITE / PAGE 4 - 17
26
2V/cm, 20µs/cm
21754-907.0100
090300
CUC 7305
Platinenabbildungen und Schaltpläne / Layout of the PCBs and Circuit Diagrams
0V
0V
5V/cm, 500ms/cm
2
6V
1,5V
7
100mV/cm, 20µs/cm
2V
0V
12
500mV/cm, 250ns/cm
0V
0V
17
1V/cm, 20µs/cm
0V
0V
5V/cm, 20µs/cm
22
0V
0V
27
50V/cm, 20µs/cm
GRUNDIG Service
4 - 16
0V
0V
3
5V/cm, 5µs/cm
4
100V/cm, 5µs/cm
in Betrieb
in operation
4V
1,5V
9
500mV/cm, 20µs/cm
8
100mV/cm, 20µs/cm
0V
0V
13
2V/cm, 20µs/cm
14
1V/cm, 10ms/cm
0V
0V
18
1V/cm, 50µs/cm
19
1V/cm, 20µs/cm
0V
0V
23
200V/cm, 20µs/cm
24
10V/cm, 5ms/cm
0V
0V
28
1V/cm, 10µs/cm
29
500mV/cm, 10µs/cm
CUC 7305
0V
5
500mV/cm, 5µs/cm
4V
10
500mV/cm, 20µs/cm
0V
15
1V/cm, 20µs/cm
0V
20
1V/cm, 5ms/cm
0V
25
2V/cm, 5ms/cm
0V
0V
30
2V/cm, 200µs/cm
GRUNDIG Service
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