CD 21 / CD 22
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
CD 21 / CD 22
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
GRUNDIG Service
GRUNDIG Service
2 - 9
2 - 10
Decoderteil / Decoder Part
NOT USED
ON SERVO CIRCUIT
TO IC 7000
CIRCUIT
TO POWER SUPPLY
SERVO CIRCUIT
FROM R3048 ON
CIRCUIT
DAC
TO
ON DISPLAY CIRCUIT
CONN.1403 TO CONN. 1001
-
-
-
-
-
-
-
ERR
DIG OUT
-
-
GND
RC5
-
-
GND
-
-
GND
TRAY
-
SLEDGE SW
-
ACK
TCA0372
TURNTABLE
DISRES
SDIS
SDAT0
SCK
-
-
-
TRAY MOTOR
SAA7345
SWITCH
MOTOR
CD6RES
SERVO CIRCUIT
FROM R3015 ON
+5
GND
GND
GND
MC68HC11ER20B3
5k6
3117
1k
3726
1k
3727
4k7
3147
10k 3715
100R
3116
22k
3703
22k
3706
22k
3701
1k
3725
22k
3709
22K
3710
330R
3107
22k
3502
1k 3501
560R
3500
22k
3101
220k
3700
220R
3108
100R
3112
220R
3111
220R
3110
220R
3109
33k
3140
100k
3143
33k
3141
2k2
3100
1M
3114
12k
3607
12k
3606
8k2
3604
12k
3602
12k
3601
33k
3142
100k
3144
100R
3146
22k
3712
22k
3713
22k
3503
1k
3716
1k
3717
1k
3719
1k
3720
1k
3718
22k
3723
4
5
1
6
7
8
9
10
11
12
13
14
15
16
2
17
18
19
20
3
L
K
O
J
I
H
G
F
E
D
C
B
A
N
M
L
K
O
J
I
H
G
F
E
D
C
B
A
N
M
4
5
1
6
7
8
9
10
11
12
13
14
15
16
2
17
18
19
20
3
+5
+5
+5
+5
+5
+5
+5
+5
+5
-10
+10
+5
+5
+5
+5
+5
+5
+5
+5
+5
SDAT1
DACDA
DACWC
DACCL
CL11
KILLL
KILLR
SICL
SIDA
NRST
SILD
DISENA
KILLI
KILLR
OTD
HF
7100
33
1
17
29
31
13
14
19
30
2
8
9
10
7
27
18
22
23
28
32
21
6
5
3
4
26
25
24
44
11
15
43
12
16
20
VDDA
WCLK
DATA
SCLK
MISC
CL16
KILL
CL11
CFLG
VSSA
DA
CL
CLA
CR
OUT
ISLICE
VSS
VDD
VDD2
VSS2
M
OTO
2
HFIN
HFREF
IREF
V1
V2
V5
V4
TEST1
V3
TEST2
PORE
DOBM
M
OTO
1
RAB
CRIN
Q-CHANNEL
CRC CHECK
Q-CHANNEL
REGISTER
DETECT
PEAK
PLL FRONT-END
DIGITAL PLL
INTERFACE
NC
SERIAL
DATA
TIMING
KILL
ADDRESSER
RAM
VERSATILE PINS
INTERFACE
CORRECTOR
ERROR
FLAGS
DEMODULATOR
SRAM
EFM
TEST
CONTROL
INTERFACE
EBU
MOTOR
PROCESSOR
AUDIO
MICROPROCESSOR
INTERFACE
OSCILLATOR
16.93MHz
1101
12 MHz
1050
1073
2
1073
1
1403
8
1071
2
1070
1
1071
1
1070
2
1070
4
1403
5
1071
3
1403
7
1071
4
1070
3
1403
6
1403
4
1403
3
1403
2
1403
1
2u2H
5100
47pF
2118
22nF
2703
22nF
2701
47pF
2101
22nF
2115
100nF
2103
100pF
2105
22pF
2109
22n
2102
1n
2114
47p
2112
47p
2113
100n
2600
22nF
2602
22n
2601
47n
2140
100n
2141
100n
2111
2n2
2100
47pF
2142
3R3
3115
22R
3145
3R3
3113
22R
3603
22uF/40V
2116
2110
22uF/40V
7700
29
21
56
7
5
3
2
37
36
35
34
33
32
31
30
45
44
43
42
41
40
39
38
9
10
11
12
13
14
15
16
20
22
23
24
25
26
46
48
50
52
47
49
51
53
17
4
6
55
54
27
1
28
18
8
19
RAM
PA4
PC3
PC4
PC5
PC1
PC6
PA1
PA2
PA0
PB2
PE0
PB1
PB0
PA3
PD4
PA5
PD0
PD2
PD5
PD3
PD1
PA6
PB7
ROM
I/O PORT
TIMING
PB3
PB6
PB4
PC2
PC0
PC7
PE7
Xtal
STRA
E
STRB
VRH
VRL
EVdd
PB5
Vdd
PA
7
Vss1
MOD
A
Vss2
EVss1
MODB
EVss2
PE1
PE2
irq
PE3
Xirq
PE4
RESET
PE5
EXtal
PE6
CPU
7500
BC558B
3V9
6500
4
2
1
8
7
7600 A
TCA0372(B)
7600
3
5
6
0V WHEN OPENING OR CLOSING
+5V IN REST
LOW WHEN READING TOC
0V REST
-5V CLOSING
+5V OPENING
85
84
82
LSB
LSB
MSB
0.5uS/DIV
24
RIGHT CHANNEL
WS
DA
CL
LEFT CHANNEL
72
71
73
12
PULSE DENSITY CONTROL
5V
5V
PLAY
START
STOP
1uS/DIV
2.5V REST
0V OPENING
5V CLOSING
83
85
84
82
WITH IR COMMANDS
LOW PULSES
IN PLAY MODE
ACTIVITY
43
42
41
40
eyepattern
2.5V
0,5us/DIV
65
43
40
42
41
65
HIGH PULSES PAUSE,NEXT,PREVIOUS
0V PLAY MODE
+5V STOP MODE
67
81
1uS/DIV
72
71
73
12
2.5V
2.7V
2.7V
0.6V
page 2-11
Bauteil
X
Y
Component
1050
H 12
1070
N 19
1070
N 19
1070
E 19
1070
E 19
1071
G 19
1071
G 19
1071
F 19
1071
F 19
1073
M 19
1073
M 19
1101
M
6
1403
C 19
1403
D 19
1403
D 19
1403
D 19
1403
C 19
1403
D 19
1403
C 19
1403
C 19
2100
G
2
2101
G
4
2102
H
5
2103
H
3
2105
H
7
2109
K
9
2110
M
8
2111
M
8
2112
M
7
2113
M
6
2114
M
6
2115
I
3
2116
I
2
2118
M
5
2140
O 13
2141
O 16
2142
M
4
2600
H 19
2601
H 19
2602
G 19
2701
B 13
2703
B 14
2730
I
16
3100
G
3
3101
G
3
3107
H
6
3108
H
7
3109
J
9
3110
J
9
3111
K
9
3112
K
9
3113
L
8
3114
L
6
3115
H
2
3116
L
6
3117
L
7
3140
O 12
3141
N 12
3142
N 13
3143
N 14
3144
N 15
3145
O 16
3146
L
4
3147
N 14
3500
H 10
3501
H 11
3502
I
11
3503
G 11
3601
H 18
3602
H 17
3603
H 19
3604
G 16
3606
F 18
3607
F 17
3700
G 12
3701
B 18
3702
A 10
3703
A 10
3706
B 15
3709
B 18
3710
B 19
3711
B 10
3712
A 11
3713
B 11
3714
A 11
3715
H
6
3716
D
8
3717
C
8
3718
F
9
3719
E
9
3720
F
9
3721
I
13
3722
I
15
3723
B 16
3725
D 16
3726
D 18
3727
C 16
5100
M
6
6500
I
10
7100
H
8
7500
H 11
7600
N 15
7600
G 18
7700
B 14
7730
I
17
9010
B
9
9011
B 10
