Grundig UMS 1 Serviceanleitung Seite 40

Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of PCBs
12 13 14
F7
i
441.0290.00
4 6
K 1
3
C96
K
+12V
22N
R104
3K6
2.5V 2.5V 2.5V 12V 12V 12V
18 13 4 1 2 3 5
6 7
I F I F
12 3.3V
FM - IF
Q.D. POST
BUFFER BUFFER
AMP
9 4V
15 1.5V
RF
MIX AM-ZF DET
IC3
LA1266
8
OSC LED
OSC
NARROW
AGC S-METER
BUFFER DRIVER
S-METER
23 24 14 19 17 16
4V 3.2V 1.5V 1.5V
R103 R106
10K 10K
+5V L21
22U
R116 D29
10K 1N4148
12V
V 13 12
AMP
RIVER
IGGER 22U/50V
+
TEREO 11.9V C89
WITCH
11.9V
T19
IC2
BC548B
0V
LA3401
-0.3V
R98
T21
BC548B
10K
0V
MUTING
T18
OUTPUT
R99
11.8V
BC548B
T22
R94
0V BC548B
10K
100K
10 11
C77
4U7/50V
R86
+
3K3
C78
R87
+
3K3
4U7/50V
12 13 14
3 - 13
15 16
IC5
1
3
GL7812
+12V
2
for UMS2 only
CN2A
4
1U/100V +12V
3
+18V
+
C104
2
+5V
+5V
R118A 1
3.4V
T23
BC548B
1.8K
2.7V
C
CN4A
R118 CE
11
D
DATAOUT
1.8K 10
CL
9
G
DATA-IN
8
SEARCHLV
7
S
6
STEREO
5
D43
MUTE
R115 4
1N4151
3
4K7
RDS CLK
2
RDS DATA
1
RDS DEMODULATOR
C99 C108
C +
2.5V 2.5V 2.5V 2.5V
560P 2.2U/100V
5 12 8 7 4 3
CLK
16
IC4
SAA6579T
DATA
2
9 10 11 6 13 14
Q3
R.D.S CCT.
4M332
for UMS2 only
F9
441.0287.00
4 12
J G
R112
2 6
100
CN1A
1 9 8
L 1
2
F11
441.0287.00
R 3
4 12
K H
R111
2 6
100
1 9 8
VOLTAGE MEASURED RELATIVE TO GND ON FM.
15 16
GRUNDIG Service
UMS 1 / UMS 2 Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of PCBs
Schaltplan / Circuit Diagram
Control, CD
CONTROL
A
(IC601/21)
KEYB1
B
11
10
9
8
7
6
5
C
4
3
2
1
15
14
13
12
11
D
10
9
8
7
6
5
4
3
E 2
1
15
14
13
12
11
10
9
F
8
7
6
5
4
VUP
3
2
R645
1
22K
G
+5V
8
7
1
G
H
F
E
D
3 - 14
TO AUDIO BD
FC 606 TC605
B
PAGE 3-3 PAGE 3-4
C
+5VUP
WT604
1 GND
2
+5V
3
PDOWN
+5V
4
+5V
5 HP-IN
6 STDBY
-36V
R648
1.5K
SUPP. SMOOTH.
+5VUP
PWR-KEY
MODE-B
KEYB1
SOL-DRV
MOT-DRV
XOUT
MEMORY
E2P-DATA
XIN R148
E2P-CLK
220K
XCOUT
5 6
+5V +5V
IC602
XCIN
X24C04
D E
2 3 4
CN602
TO TUNER BD 4A
PAGE 3-13
UMS 1 / UMS 2
R651
470
+5V
R650
470
+4.7V
0V
+4.7V C
B
0V
+ C612
100U/10V
VUP +5VUP +5VUP
C603
D605
+
1N4148
22U/25V
R631
47
0V
0V
+5V
R654
C604
R630
22K
+
+5VUP
100K 1U/50V
G
1
REC
2
HEAD.SW
LINE.MUTE 3
REC.MUTE 4
DOLBY.ON/OFF 5
6
DOLBY.R/P
7
ANALOG-I/P
REC.R 8
REC.F 9
F
PWR-KEY 10
11
MODE-B
HALL-B 12
CN611/11
GND 13
14
15
C606
27P
C
C605
27P
C
(22P)
C608
(3/10P)
MUTE (T205)
GRUNDIG Service