Inhaltsverzeichnis
Werbung
M 18-C ... M 48-DC
Schaltplan CD-Wechsler CDC 3 MG / Circuit Diagram CD Changer (CDC Board) CDC 3 MG
Teil 1 / Part 1
1
2
3
MP814
A
MP813
MP812
B
MP816
C
1800
3810
MP818
12
D5
+5V
11
D
D3
D4
10
D2
9
D1
8
MP860
7
MP815
+5V
5V
6
5
MP848
4
MP851
E
FOCUS
3
MP850
2
MP849
1
TRACK
5597-NAPB
1801
MP853
1
SLIDE
MP852
2
F
MP847
3
DISC
MP846
4
S
5
Focus search
INNER SWITCH
Service mode
6
- + 0.2V
2.1V
EH-B
0.3s
G
S
H
MP845
MP859
1
2
3
Bauteile X Y
2807
C 4
2822
E
8
2839
Components
2808
C 5
2823
F
9
2840
2809
F
5
2824
G 9
2841
1800
D 1
2810
C 4
2825
F
9
2842
1801
F
1
2811
C 5
2826
B 11
2843
1810
G 11
2812
C 3
2827
C 14
2844
2800
B 4
2813
C 3
2828
G 13
2845
2801
B 5
2814
C 3
2831
G 10
2846
2802
B 4
2815
D 3
2832
B 10
2847
2803
B 5
2817
D 4
2835
G 7
2849
2804
A 4
2819
D 5
2836
G 7
2850
2805
A 5
2820
D 6
2837
F
5
2856
2806
A 5
2821
D 8
2838
E
5
2859
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
4
5
6
3804
3805
56K
10K
3806
10K
3803
3802
120K
10K
3801
3800
120K
10K
3807
10K
MP817
3808
10K
3818
3813
+4V
560R
7801-F
10K
10K
1V
3897
PC74HCU04D
7801-E
7801-D
2819
2820
12
11
10
9
8
13
1V
1K
47p
47p
1V
3891
3822
3893
330K
22K
22K
7801-A
7801-B
1V
3812
2817
3817
3823
1
2
3
4
47K
150p
6K8
1V
3K3
4V
7807
0V
TDA7073
A
0V
TURNTABLE
3840
150K
MP839
16
1
-
15
3839
2
+
14
3852
MP873
10V
MP838
150K
3
+10V
13
4
3R3
OUT1-
S
S
5
VDD
12
S
SLIDE
3849
3848
6
+
1.9V
11
8K2
8K2
7
MP842
10
-
1.9V
9
8
7806
TDA7073
A
FOCUS
1.9V
16
1
-
15
3846
3845
MP841
2
1.9V
+
14
3853
10V
8K2
10K
3
MP872
+10V
13
OUT1-
4
3R3
5
VDD
12
S
TRACK
3843
3842
MP840
6
+
1.9V
11
8K2
10K
7
10
-
9
8
1.9V
4
5
6
E
5
2866
E 3
3808
C 4
3825
E
5
2867
D 7
3810
D 4
3826
H 6
2869
E 3
3812
D 4
3827
H 5
2884
D 7
3813
C 6
3830
G 5
2887
G 10
3816
D 8
3833
G 6
3800
B 4
3817
D 5
3834
G 5
3801
B 4
3818
C 5
3837
F
6
3802
A 4
3819
B 12
3838
F
5
3803
A 4
3820
D 6
3839
E
3
3804
A 4
3821
D 8
3840
B 12
3805
A 4
3822
D 5
3841
B 13
3806
A 4
3823
D 6
3842
B 11
3807
B 4
3824
D 7
3843
M 18-C ... M 48-DC
CDC 3 MG bei allen Geräte ab Ser.-Nr. 001048
CDC 3 MG at all sets from serial no. 001048 onwards
7
8
9
10
MP837
0V
7808
MP858
BC337-40
+4V
2832
4u7
64
1
VSSA1
2
3.8V
VDDA1
3
MP870
VCC
of 7801
D1
2.1V
4
3816
D2
3K3
5
D3
MP861
2821
MP855
6
15p
VRL
7801-C
3824
3821
5
6
7
D4
3K3
3K3
1V
8
R1
9
R2
390K
3827
10
IREFT
11
7800
Vref
VRH
SAA7378
12
4V
VSSA2
SelPLL
13
SELPLL
0V
2825
14
ISLICE
100n
15
MP893
HFIN
+4servo
VSSA3
16
17
18
3867
100K
MP843
+4V
D
D
EYE-PATTERN
3.8V
800mVpp
TB=0,5 µs/DIV
7
8
9
10
E 8
3844
H 5
3864
C 14
7801C
D 8
F 10
3845
G 6
3867
G 10
7801D
D 6
E 10
3846
G 6
3873
B 13
7801E
D 5
G 11
3847
G 5
3889
B 13
7801F
D 4
G 11
3848
F
6
3890
B 12
7806
G 5
B 10
3849
F
6
3891
D 4
7807
E 4
3850
F
6
3893
D 7
7808
B 10
F
8
G 8
3852
E
6
3894
B 10
MP812
B 2
E 6
3853
G 5
3895
B 11
MP813
A 2
E 6
3856
G 11
3897
D 7
MP814
A 2
E 6
3857
D 3
7800
E 9
MP815
E 2
G 6
3862
G 10
7801A
D 5
MP816
B 2
3863
G 13
7801B
D 7
MP817
C 4
G 6
4 - 39
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
11
12
13
MP821
PORE
+4V
SILD
SCL
SDA
3.8V
MP826
47p
2856
MP828
MP875
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
SCLK
MICROPROCESSOR
VDD2P
47
INTERFACE
WCLK
46
DATA
45
VERSATILE
CONTROL PART
MISC
44
PINS
KILL
43
V1...VV5
PRE-
FUNCTION
V3
42
PROC.
CONTROL
KILL
V4
41
V5
ERROR
EBU
40
FLAGS
CORRECTION
INT.
PEAK
VSS2
39
DETECT
EFM
RAM
SUB
38
SRAM
DEMOD.
ADDR.
RCK
37
DIGITAL
MOTOR
SFSY
36
PLL
CONTROL
SBSY
35
OUTPUT
TIMING
MOTO2
34
STAGES
MOTO1
33
19
20
21
22
23
24
25
26
27
28
29
30
31
32
100n
MP829
+4V
2828
EBUGND
MP830
3830
1M
MP831
3.8V
+4servo
to servo drivers
1810
(7806,7807)
at 3837
11
12
13
MP818
D 3
MP840
G 7
MP853
F
2
MP820
D 8
MP841
G 7
MP855
D 10
MP821
B 12
MP842
F
7
MP858
B 10
MP826
B 11
MP843
G 7
MP859
H 3
MP827
G 10
MP844
C 10
MP860
D 3
MP828
B 11
MP845
H 3
MP861
D 7
MP829
G 11
MP846
F
2
MP870
C 7
MP830
G 11
MP847
F
2
MP872
G 5
MP831
G 13
MP848
E 2
MP873
E
5
MP832
C 14
MP849
E 2
MP875
C 11
MP837
B 10
MP850
E 2
MP893
F
9
MP838
E
6
MP851
E 2
MP839
E
6
MP852
F
2
14
15
A
to
1805
on
part 2
(uP-interface)
B
8.46MHz
to 7876 on part 2
+4V
to
C
7851
2827
on
3.8V
part 2
MP832
100n
(DAC)
352KHz
D
E
F
G
V
EVM
H
to
DC voltages
measured in
7873
on
play mode
part 2
14
15
4 - 40
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Inhaltsverzeichnis
