UMS 1 / UMS 2
3 - 16
Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of PCBs
GRUNDIG Service
UMS 1 / UMS 2
3 - 15
Schaltpläne und Platinenabbildungen / Circuit Diagrams and Layout of PCBs
GRUNDIG Service
47
R631
+
1U/50V
C604
3.3K
+
100U/10V
C613
-
1N4148
D605
150K
R234
1K
R232
+
4.7U
C331
1K
R231
BC338-25
T203
BC328-25
T205
BC338-25
T204
1K
R206
-
-
+
+
10145
2
1
6
7
9
12
13
16
IC05
R191
4.7
M
0.1U
C165
C
C224
680P
R230
4.7
1.5N
C130
R163
4.7
M
C203
0.1U
C
12P
C221
C
C225
680P
+
33U/16V
C191
4.7K
R221
560P
C131
12K
R223
M
C192
0.1U
5
8
7
6
4
3
2
1
GND
DATA
WS
BCK
VOL
N.C.
VOR
VDD
TDA1311A
(DAC-S08)
IC07
C
12P
C220
4.7K
R228
4.7K
R220
M
C202
0.22U
12K
R222
+
100U/25V
C229
6
5
4
3
2
1
CN502
5
4
3
2
1
CN506
10K
R147
10K
R141
10K
R142
15P
C163
+
100U/25V
C228
10K
R143
22K
R103
2.2N
C107
4.7K
R229
1K
R102
VSSA VSSD VDD1 VDD2
SL
RA
VRL
FO
LDON
R2
R1
D4
D3
D2
D1
XIN
uP INTERFACE
OUTPUT STAGE
CONTROL PART
CL CL
CL
FUNCTION
CONTROL
PREPROCESSING
A/D
GENERATOR
VREF
XR
CLDIVIDER
XTAL
OSCILLATOR
5
6
7
9
10
11
8
2
23
22
24
2820211514312
25
26
27
1
16
19
13
TDA1301T
(SERVO)
IC02
1N
C111
47N
C109
12K
R113
22OP
C124
22N
C110
10K
R124
10K
R125
10K
R126
10K
R127
10K
R128
10K
R129
1N
C106
220P
C127
220P
C128
220P
C129
220P
C126
220P
C125
47N
C113
+
4.7U/50V
C226
22N
C105
100K
R104
12K
R114
1N
C112
430
R111
+
4.7U/50V
C227
47N
C115
47N
C114
430
R112
1N
C119
430
R117
390
R118
1K
R227
12K
R115
47N
C133
+
33U/16V
C102
10K
R225
1K
R226
10K
R224
+
4.7U/50V
C103
M
0.1U
C116
M
0.1U
C137
5.6K
R105
1K
R120
1N
C118
+
47U/16V
C117
+
10U/25V
C120
LDON
A4 A3 A2 A1
FILTERS
6 LP
AND
A1-A6
6 AMP
NC
+
I/IV
+
LP
AMP
uP
12
9
4
3
1
6
2
5
7
13 14
16
20
23
19
24
22
21
15
18178
TDA1302T
(DATA.LASER)
IC01
-
-
+
+
10145
2
1
6
7
9
12
13
16
IC04
1K
R119
47P
C108
470
R146
16.9344M
Q162
BC517
T202
4.7
R205
1K
R203
10K
R204
M
C330
0.1U
+
220U/16V
C201
78L05
GND
OUTIN
1
2
IC12
-
+
LM833
+
33U/16V
C135
M
0.1U
C138
BC548B
T201
12K
R132
12K
R133
100
R161
-
+
1K
R235
M
0.1U
C104
22N
C101
+
33U/16V
C139
M
0.1U
C164
47K
R202
47K
R201
+
1U/50V
C223
R121
4.7
8
2
192021
15
44
16
14 13 17 27 32 31 30 28 4 23 22 3 34 35 36 37 38 39 40 41 42 43 6 5
10
9
7
24
12
11
SAA7345GP
IC03
10K
R653
R101
4.7
+
1U/50V
C222
100K
R162
10K
R145
15P
C162
5
4
3
2
1
CN503
M
0.1U
C122
R139
4.7
4
1
2
3
5
6
8
11
12
10
9
7
CN501
10K
R652
47N
C134
M
0.1U
C136
3v9
D606
+
4.7U/50V
C166
MOT+
MOT-
TRAY+
FOC+
FOC-
STBY
RAB
SIDA
SICL
HOME
RAD+
RAD-
SILD
R-OUT
TRAY-DOOR.CLOSE
GND
GND
+5VUP
+5VUP
+5VUP
L-OUT
+12VI
+12VI
+12V
+12V
+12V
+10VM
+10VM
MUTE
(IC601/51)
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
CD.STOP
TRAY-
B
TRAY-DOOR.OPEN
C
N=L
5
3
8
4
7
1
6
2
AUDIO BUFFER
MOTOR DRV.
MOTOR DRV.
DALAS
SERVO
DECODER
DA CONVERTER
CD SUPPLY
TO CD MECH. (2) PAGE 3-17
.
PAGE 3-22
TO CD MECH. (3)
PAGE 3-17
LM833
IC09
1/2
IC09
1/2
TO AUDIO BD TC506 PAGE 3-3
TDA7073A
(M.DRV)
TDA7073A
(M.DRV)
TO CD MECH. (1) PAGE 3-17
CD
VOLTAGE MEASURED RELATIVE TO GND ON CD PLAYBACK
+2.5V
+2.5V
+2.5V
-0.1V
-0.1V
-0.1V
+0.3V
+4.3V
-0.1V
-0.1V
0V
+5V
+2.5V
+2.5V
+2.5V
+1.8V
+1.2V
+1.6V
+5V
+5V
+1.4V
+5V
0V
+2.5V
+1.3V
+5V
+2.4V
+2.4V
+2.4V
+3.5V
+3.5V
+5V
+5V
+5V
0V
-1V
-1.2V
+5V
4V
-1V
0V
+5.5V
+5.5V
+5.5V+5.5V+5.5V
+5.5V
+11V
+5V
+10V
+11V
+11V
0V
(IC508)
V
0V
+
.
3
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