Bedienplatte - Grundig UMS 25 Service Manual

Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
Bedienplatte / Operating Board
8V 10,3V
8,8V
Cassette
Play, 12,1V
12,2V
3 - 5
4,9V
12,2V
11,5V
0,2V
Cass.
Play,
4,7V
5,1V
KEY IN1
AUTO REVS 0,0V
REC PAUSE 0,5V
REVS PLAY 1,0V
PLAY/PAUSE 1,5V
REWIND 2,1V
TUNER/BAND 2,6V
FUNCTION 3,1V
POWER 3,7V
KEY IN2
STOP 0,0V
FF 0,5V
PLAY 1,0V
SOUND PRESET 1,5V
Q SOUND 2,1V
BASS XPANDER 2,6V
FM MODE 3,1V
MEMORY 3,7V
CLOCK/TIMER 4,2V
UMS 25 Platinenabbildungen und Schaltpläne / Layout of PCBs and Circuit Diagrams
TO PAGE 3-11
A
T1
F I K B
J
T2
G H
S1
M
E L C
N
D
4,9V
0V 2,3V
GRUNDIG Service 3 - 6
1 2 3 4 5 6 7 8
COL
P
S7
S2
S4
S6
S3 S5
T3
*1
V1 V2 V3 V4 V5 V6 V7
2,5V
1,8V
5V
2,4V
UMS 25
LCD101
SEG COM1 COM2 COM3 COM4
1 COM1 – – –
2 – COM2 – –
3 – – COM3 –
4 – – – COM4
5 1F 1G 1E OFF
6 1A 1I 1M 1L
7 1K 1J 1N 1D
8 1B 1H 1C REC
9 2F 2G 2E SLEEP
10 2A 2I 2M 2L
11 2K 2J 2N 2D
12 2B 2H 2C S2
13 3F 3G 3E S3
14 3A 3I 3M 3L
15 3K 3J 3N 3D
16 3B 3H 3C S4
17 4F 4G 4E S5
18 4A 4I 4M 4L
19 4K 4J 4N 4D
20 4B 4H 4C S6
21 5F 5G 5E S7
22 5A 5I 5M 5L
23 5K 5J 5N 5D
24 5B 5H 5C COL
25 6F 6G 6E P
26 6A 6I 6M 6L
27 6K 6J 6N 6D
28 6B 6H 6C RANDOM
29 7F 7G 7E SURR.
30 7A 7I 7M 7L
31 7K 7J 7N 7D
32 7B 7H 7C REPEAT
33 8F 8G 8E MHz
34 8A 8I 8M 8L
35 8K 8J 8N 8D
36 8B 8H 8C KHz
37 T1 T2 ON S1
38 ST MONO RDS T3
39 2 10 1 9
40 4 12 3 11
41 6 14 5 13
42 8 16 7 15
43 *1 V1 V2 V3
44 V4 V5 V6 V7
GRUNDIG Service