Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
CD 23
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
CD 23
GRUNDIG Service
GRUNDIG Service
2 - 11
2 - 12
DAC-Teil / DAC Part
HPL
HPR
+10
-10
56pF
2305
220pF
2309
220pF
2308
56pF
2304
100nF
2336
22n
2117
1301- 5
1301- 3
1301- 2
1301- 1
1300
5
4
3
2
1
4
5
1
6
7
8
9
10
11
12
13
2
3
G
F
J
E
D
C
B
A
I
H
G
F
J
E
D
C
B
A
I
H
4
5
1
6
7
8
9
10
11
12
13
14
14
2
3
+5
+5
-10
-10
+10
-10
+10
-10
KILLR
KILL
KILL
KILLL
DACCL
DACWS
DACDA
TDA1545
7300
1
16
4
7
8
9
6
2
REFERENCE
SOURCE
VOR
VOL
L
R
VREF
BCC
DAC
DATA
BCK
3
TEST
WS
FILTCL
FILTCR
VSSO
(opamp)
2k2
3364
2k2
3365
15k
3305
22k
3307
1k
3309
22k
3306
1k
3308
15k
3304
10k
3302
47k
3361
220k
3363
47k
3360
220k
3362
2k2
3367
1k
3377
2k2
3366
1k
3367
47uF/25V
2339
47uF/25V
2337
10u/25V
2307
47u/50V
2302
10k
3303
47u/50V
2303
10u/25V
2306
10u/16V
2251
5250
1
3
6
4
47uF/16V
2310
BC337-40
7362
BC337-40
7363
BC337-40
7365
BC337-40
7367
7361
BC557B
7360
BC557B
6361
1N4148
6360
1N4148
4R7
3334
4R7
3333
8
7
5
6
NJM4560
7301
+
-
4
1
3
2
NJM4560
7301
+
-
470pF
2300
470pF
2301
12
VSSA
(analog)
14
VSSD
(digital)
10
5
VDDO
(opamp)
11
VDDA
(analog)
15
VDDD
(digital)
DIGOUT
+5
47uF/16V
2231
3R3
3330
100n
2232
100n
2234
100n
2230
+5
47uF/16V
2233
3R3
3331
+5
47uF/16V
2235
3R3
3332
10k
3368
10k
3369
1250
2
3
1
GND
ANALOG
OUT
LEFT
ANALOG
OUT
RIGHT
DIGITAL
OUT
1301- 4
68R
3252
100n
2253
+3.2V
2.0V
2.0V
+3.2V
+3.2V
+3.2V
+
-
-
+
2k4
2k4
LSB
LSB
MSB
0.5uS/DIV
24
RIGHT CHANNEL
WS
DA
CL
LEFT CHANNEL
72
71
73
72
71
73
Bauteil
X
Y
Component
1250
J 14
1300
E 14
1301
A 14
1301
B 14
1301
C 14
1301
F 14
2117
E 13
2230
C
3
2231
C
3
2232
C
4
2233
C
4
2234
C
5
2235
C
5
2251
J 12
2253
I
12
2300
C
6
2301
G
6
2302
C
8
2303
G
8
2304
C 10
2305
G 10
2306
D 10
2307
G 11
2308
D 13
2309
G 13
2310
E
8
2336
E 10
2337
E 10
2339
F 10
3252
J 13
3302
C
9
3303
G
9
3304
C 10
3305
G 10
3306
D 11
3307
G 11
3308
D 12
3309
G 12
3330
C
3
3331
C
4
3332
C
5
3333
D
9
3334
F
9
3360
B
7
3361
H
7
3362
B
9
3363
I
9
3364
D 12
3365
G 12
3366
C 12
3367
C 12
3367
F 12
3368
B
7
3369
H
7
3377
F 12
5250
J 12
6360
B
9
6361
H
9
7300
D
7
7301
D 10
7301
G 10
7360
B
8
7361
H
8
7362
D 12
7363
G 12
7365
F 12
7376
C 12