Grundig M 28-C Servicehandbuch Seite 58

Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Schaltplan CD-Wechsler CDC 3 MG / Circuit Diagram CD Changer (CDC Board) CDC 3 MG
Teil 2 / Part 2
3 4 5
A
from
7800
B
on
part 1
C
D
7871
TDA7073 A
E
MP822
16
15
14
MP823
13
OUT1-
MP825 VDD
12
4
F
10
9
MP824
G
3 4 5
Bauteile X Y 2829 F 6 2863 B 11 2878
Components 2830 B 12 2870 E 4 2879
2851 C 8 2871 F 4 2880
1805 G 14 2852 C 8 2872 G 10 2882
1876 E 3 2857 C 9 2873 F 6 3720
1878 F 3 2858 C 9 2874 E 6 3832
1880 D 8 2860 A 10 2875 F 6 3851
1881 E 8 2861 B 10 2876 E 12 3854
1882 D 8 2862 A 11 2877 G 11 3855
4 - 41
M 18-C ... M 48-DC
6 7 8
7851
Continuous Calibration DAC
TDA1311
RIGHT
FREQUENCY
Vor 8
CHANNEL
DIVIDER
REGISTER
V
7
REF
3832 470R
BCK
LEFT
CONTROL
1
3865
MP834 WS Vol 6
AND CHANNEL
2
3866
470R
TIMING REGISTER
3
DATA
470R MP819 5
4 GND VDD
4.75V
GNDA
100R MP836
+5V
3869
GNDA GNDA
MP866
1880
1882
CARR. SW
MP866
1880
TRAY SW
to
1801
MP868
on
1881
part 1
CDM-POS
MP867
10K
0V
3881
1
-
10K
0V
2
+
3851
MP871 3879
10V
3
+10V
3R3
11
5
100K
6
+ 0V
3883
7
-
100K
8
0V
3885
6 7 8
G 11 3858 A 10 3872 B 13 3882 E 7
G 11 3859 B 10 3874 B 13 3883 F
D 12 3860 A 10 3875 C 12 3884 F
D 7 3861 B 10 3876 C 11
3885 F
C 9 3865 B 6 3877 E 11 3886 F
B 6 3866 C 6 3878 D 7 3887 E 12
E 6 3869 C 8 3879 E 6 3888 E 12
B 9 3870 E 12 3880 E 6
3896 G 10
C 8 3871 E 11 3881 E 6 3898 D 12
GRUNDIG Service
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
CDC 3 MG bei allen Geräte ab Ser.-Nr. 001048
CDC 3 MG at all sets from serial no. 001048 onwards
9 10 11
2860 470R
3860
10u
2861 GNDA 470R GNDA
10u 3861
GNDA
GNDA
3855 MP880
15K
MP863
GNDA GNDA
to
only
1805
for TDA1545 IREF
8
6873
VSS 7873
10
HEF4094BP
9
1N4148
Os
6871
11
O7
12
1N4148
6872
O6
13
O5
14
1N4148
6874 O4
7
O3
6
1N4148
O2
5
O1
4
DATA
D
2
O0
SHR_CL
3
STR_OUT
STR
1
5V
15
16 VDD
5V
9 10 11
3899 D 12 7874 C 11 MP802 D 13
7 6871 D 8 7875 D 12 MP803 F 10
6 6872 E 8 9800 D 12 MP804 G 13
6873 D 8 9806 B 14 MP805 F 13
7
7 6874 E 8 9808 A 10 MP806 F 13
6875 F 12 9809 A 10 MP807 G 13
7851 A 6 9810 B 10 MP808 F 13
7871 E 5 9811 B 10 MP809 G 13
7873 D 10 MP801 E 12 MP810 G 13
4 - 42
12 13 14
MP854
MP857
2830
100n
GNDA
7874 BC547B
3875
+4V
MP869
10K
+5V
@
9800
MP865 MP802
+4V
7875 BC547B
3898 3899
560R 180R
+10V
MP801
MP856
GNDA
MP899
D S
MP808
MP805
MP806
MP811
MP810
MP809
MP807
to 7800 on part 1
MP804
@... for provision only
12 13 14
MP811 F 13 MP836 C 8 MP869 C 11
MP819 C 6 MP854 A 12 MP871 E 6
MP822 E 4 MP856 E 13 MP880 C 9
MP823 E 4 MP857 B 12 MP899 F 14
MP824 F 4 MP863 C 11
MP825 F 4 MP865 D 12
MP833 C 5 MP866 D 8
MP834 B 5 MP867 E 8
MP835 B 5 MP868 E 8
M 18-C ... M 48-DC
15
A
B
C
D
E
15
14
13
12
11
10
F
9
8
7
6
5
4
3
G
2
1
1805
To 1806 CDC
page 4-38
15
GRUNDIG Service