Inhaltsverzeichnis
Werbung
PA 2 / PA 3
23
24
25
A
A
72
1311A
T043
2769
8
+3.5V
4u7
7
6
+3.5V
2770
5
4u7
T042
+4.9V
867
00n
866
7u
A
A
+5
MUTE
3.5V
3.6V
6857
6858
1N4002
1N4002
+10
3899
3V
4R7
T041
3841
39k
3854
STBY=H
470k
For software V76
T040
3895
33k
+5u
3760
1k
+5u
D
V
V
V
V
T044
3791
5V
10k
5V
5V
5V
5V
V
V
0V
+5u
23
24
25
GRUNDIG Service
26
27
3817
220
D
T038
7853
TDA7073A
D
+2.5V
16
+
1
-
15
2
+
14
+2.5V
3
D
13
-
4
+9.8V
5
VDD
12
-
6
+2.5V
+
11
7
-
10
+2.5V
D
8
9
+
T037
MOTOR CHANGE-OVER CIRCUIT
D
D
Pull-up's on mechanism
Pull-up's on mechanism
+5u
NOTES
Gleichspannungen bei "PLAY" gegen Masse gemessen.
+5u :
+4.8V - +5V
Bei den in den Schaltplänen angegeben Meßwerten handelt es sich
um Näherungswerte!
+5 :
+5V
+10 :
+10V - +12V
DC-voltages measured against minus terminal (GND) on "PLAY".
The measured values given in the circuit diagrams are approximates!
26
27
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
28
29
30
3879
4k7
0V
3881
7884
1k
BC337
-0.7V
A
A
MUTE
T012
-0.8V
T011
+2.8V
BC558
7883
T010
3889
+2.8V
10k
3878
4k7
0V
3880
7885
1k
BC337
-0.7V
MUTE
A
A
T031
7886
+5
+10
MC7805
T013
O
I
G
D
D
D
D
1802
T028
1
+4.7V
FRONT
(OPEN)
T027
2
+4.7V
REAR
(CLOSE)
T026
TO CN1
+4.7V
3
DOWN
T025
4
+4.7V
UP
1807
T024
1
H POS'
(HOME SW)
T023
2
SW1
T022
TO CN3
3
SW2
T021
4
SW3
(DISK LOCK)
1808
T020
1
STORE'
T019
2
EJECT'
T018
3
DISC
DETECT'
T017
4
DISC
TO CN2
COUNT'
T016
5
CENTRE
POS OVER'
T015
6
0V (GND)
T014
D
7
+5V
28
29
30
31
32
A
B
+10
P 407
CONTROL
SECTION
C
1804
T009
LO
7
T008
GNDA
6
A
A
T007
RO
5
T006
D
RESET
4
T005
ACKN
3
T004
STROBE
2
T003
DATA
1
E
REGULATOR
BOARD
P 409
1805
F
T002
2
+10
D
1
T001
G
+5
H
I
J
K
L
M
N
O
P
31
32
1801 I 2
3846 N10
1802 H29
3847 J10
1804 C32
3848 I11
1805 F32
3849 O 9
1806 N 2
3850 J 9
1807 J29
3851 F10
1808 L29
3852 O10
1830 L 6
3853 N10
1850 P14
3855 J19
1850 D14
3856 D16
1852 P13
3857 J 8
1852 D13
3858 J 9
1880 B15
3860 E17
2752 C20
3862 E17
2762 D21
3863 O16
2763 D21
3864 O16
2764 D22
3865 N16
2769 C24
3866 H10
2770 D24
3868 E23
2802 B 3
3869 B25
2803 C 3
3870 D25
2804 C 3
3871 A17
2805 C 3
3872 G23
2806 D 3
3873 C25
2807 B 5
3874 E26
2808 B 6
3875 B26
2809 D 9
3876 E24
2810 C10
3877 B24
2811 B 4
3878 D29
2814 C11
3879 B29
2817 G 3
3880 D29
2818 H 2
3881 B29
2820 G 5
3882 B25
2821 G 4
3885 F21
2822 G 4
3886 F22
2823 G 5
3887 H21
2824 G 4
3889 C29
2825 G 6
3890 C30
2826 G 6
3891 M15
2827 G 6
3892 H31
2828 G 6
3893 H31
2829 G 7
3894 H32
2830 G 7
3895 I24
2831 H11
3896 I25
2832 D 7
3898 A27
2833 H 7
3899 G25
2834 H 7
5860 F17
2836 F11
5861 I19
2837 K 9
5890 G10
2838 G11
6857 F24
2839 F11
6858 F24
2840 L 9
6881 H22
2841 F21
6883 C30
2843 F19
7800 C 6
2844 M 9
7800 C 8
2847 J 9
7800 C10
2848 B17
7800 B 7
2849 O 8
7800 B 5
2850 J 9
7800 D 4
2851 O 9
7820 E 6
2852 E18
7830 M18
2853 F12
7850 E 8
2854 F31
7851 J 8
2855 B17
7852 M 8
2856 C17
7853 G26
2857 D16
7856 F23
2858 D16
7860 B20
2859 E17
7872 C23
2860 E16
7880 D26
2861 F18
7880 A26
2862 F17
7881 G22
2866 E23
7883 C30
2867 D23
7884 B30
2870 C25
7885 D30
2872 E26
7886 F29
2873 C26
9852 D24
2874 D27
9853 C24
2875 B27
9861 C16
2876 E24
9886 D15
2877 B24
2878 D30
2879 B30
2881 G28
2882 G30
2883 G28
2885 A27
2886 F26
2890 J20
2891 M16
2892 M16
2893 O16
2894 O16
2895 O17
2896 J26
2897 I25
2898 H25
2899 G25
3751 D20
3752 C20
3755 H10
3760 I25
3761 J25
3762 E21
3763 E21
3764 E22
3770 G21
3780 E10
3781 J16
3782 E11
3783 H16
3784 I16
3785 I16
3786 I16
3787 J16
3788 K16
3789 N23
3790 N24
3791 L24
3792 L24
3793 N25
3794 N25
3795 N25
3796 K24
3797 K24
3798 K25
3799 K25
3801 B 3
3802 C 3
3803 B 4
3804 C 6
3805 C 6
3806 A 6
3807 A 7
3808 B 4
3809 C 7
3810 B 7
3811 C 8
3812 C 8
3813 C 9
3814 B10
3815 D15
3816 C28
3817 F26
3818 E 7
3819 D 8
3820 G 3
3821 F 3
3822 F 3
3823 E10
3824 F 3
3825 G 5
3826 G 5
3827 F 6
3828 F 6
3829 F 6
3830 F 6
3831 G10
3832 H 7
3833 H 7
3834 E11
3835 F10
3836 K10
3837 K10
3838 F11
3839 L10
3840 L10
3841 H24
3842 H25
3843 F19
3844 N10
3845 F19
3 - 16
Werbung
Inhaltsverzeichnis
