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Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
Schaltbild NF-Teil
Circuit Diagram Audio Part
1
2
3
4
AUDIO PART
A
B
+3.5
3314
0V
1k
3316
0V
7316
1k
BC817
C
Mute right
AD
AD
T846
DBB-Max
+A
T842
7350
Defeat
0V
BC858
6,4V
T845
AMB
D
T843
Muting
DSC1
6,4V
control
T844
DSC2
T847
3355
6,4V
DBB-Off
2k2
RC
E
+A
+A
3,3V
AD1
+uP
+uP
Right
3313
0V
F
Left
1k
T840
Mute
3315
0V
BC817
1k
7315
Mute left
AD
AD
G
+3.5
+3.5
GNDA
AD
H
I
J
K
L
Supply voltages
Explanation of abbreviations:
+A .....battery or ext. DC
% ......Tolerance of resistor is only 2%
+S .....switched +A
+uP ....3.5V (switched by low supply voltage
DC VOLTAGES MEASURED IN
shut-off circuit)
PLAY MODE - 1kHz 0dB LEVEL
+3.5 ...stabilized voltage of DC/DC converter
(SUPPLIED BY MAINS ADAPTOR)
+1.2 ...Referenze-voltage (only if power on)
V
EVM
M
+6 .....ext. DC
1
2
3
4
2 - 7
5
6
7
8
9
to 7310 Pin 14
+3.5
+3.5A
+3.5
3310
3350
and 7311 Pin 14
2,9V
3k3
470
3,6V
Sound
A
circuit
AD1
AD
A
supply
right
3318
33k
74HC4066
7310
1
2
13
3338
+uP
1M
74HC4066
7310
4
3
5
T832
3324
1M
2,9V
3,7V
7318
BC848C
3326
2,5V
7351
1,9V
1k
BC848
Sound control
right
A
A
A
left
3317
33k
74HC4066
7310
8
9
6
3337
1M
74HC4066
7310
11
10
12
3323
1M
2,9V
7317
BC848C
2,5V
3325
1,9V
1k
Sound control
left
A
A
A
Sound Features
OFF
CAR
JAZZ
ROCK
DSC1
H
H
H
L
DSC2
L
L
H
H
AMB
L
H
H
L
Supply: +3.5A
5
6
7
8
9
CDP 200
Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs
10
11
12
13
14
A
A
+3.5
7312
8
2326
1,3V
TDA1308
3
1,3V
330n
1
1,3V
2
1,3V
1,3V
24
23
1,3V
Vcc
HEADPHONE
Volume
Ambiance
AMPLIFIER
control
4
3
5
2
Pre
right
GND
left
1
1
2
1,3V
A
1,3V
3364
10k
7312
TDA1308
2325
5
1,3V
330n
1,3V
7
DBB
6
4
1,3V
A
TDA1308
8
5
DBB
A
off-mid-max
1
4
RC
10
11
12
13
14
GRUNDIG Service
2 - 8
15
16
17
18
19
Ripple filter
+3.5
3,6V
A
SD
A
A
A
2363
3365
0V
3369
0V
1,1V
1,3V
18R
18R
2,7V
2,7V
3,6V
220u
3,6V
22
21
20
19
18
17
16
15
14
13
Vcc
0V
0V
RF1 RF2
MUTE
7365
7367
BC817
BC817
LP-lev.contr.
A
A
A
T824
T825
Double mute
DBB-
contr.
GND
3
4
5
6
7
8
9
10
11
12
A
3366
3370
2364
0V
0V
1,1V
1,3V
1,3V
1,3V
0V
0V
18R
18R
220u
0,7V
0V
0V
2362
7366
7368
BC817
BC817
2n2
A
A
A
A
A
A
A
+3.5
0V
74HC4066
7311
0V
7380
1,3V
11
10
BC848
12
5366
2u2
5365
2u2
Line out
15
16
17
18
19
CDP 200
20
21
1350 D21
T882 D20
1370 I21
T890 D21
2310 A 7
2315 F 5
2316 C 5
2317 F 8
2318 C 8
A
2319 G 8
2320 D 8
2321 F 9
2322 C 9
2323 G 9
2324 D 9
2325 F11
2326 B11
2327 C14
2328 C13
2350 A 9
2351 E 4
B
2361 B15
2362 E15
2363 C17
2364 E17
2380 F14
ESD
+3.5
2381 F13
2382 B14
2383 B15
2384 C16
2385 C16
C
2386 F16
2387 E16
2388 E16
2389 E17
2390 B18
2391 B19
2392 E21
1350
2393 F15
1
2394 J20
2
2396 F16
T890
3
3300 E13
D
4
3310 A 7
5
3313 F 4
3314 B 4
T826
3315 F 4
Headphone
3316 C 4
T882
3317 F 6
3318 B 6
3319 G 7
+uP
3320 D 7
3321 G 7
E
3322 D 7
3,7V
3323 H 8
3324 E 8
3325 I 8
3326 E 8
0V
3327 I 9
3328 E 9
A
ESD
3329 F11
3330 C11
3331 F12
3332 C12
ESD
ESD
F
3333 D14
3334 D13
3335 H 9
3336 E 9
3337 G 8
3338 C 8
3340 D12
3350 A 9
3351 D 5
3352 D 5
3353 D 4
G
3355 E 5
3361 D14
3362 E14
3363 B15
3364 E15
3365 C18
3366 E18
3367 C18
3368 E18
3369 C19
H
3370 E19
3371 C19
3372 E19
3375 C20
3376 E20
3380 F15
3381 F16
1370
3382 E17
right
HSJ1715
3383 E12
T828
3385 G17
3472 C 2
left
I
3473 C 2
T827
3474 C 2
3475 C 2
3476 C 2
T829
LINE OUT
3495 C21
5361 C20
5362 E20
5363 E21
5365 I20
5366 I20
5367 J21
J
5368 C21
5369 E20
AD1
6390 C20
6490 E21
7310 C 8
7310 D 8
7310 F 8
7310 G 8
7311 D 7
7311 H 7
K
7311 E12
7311 G15
7312 B12
7312 F12
7315 F 4
7316 C 4
7317 H10
7318 E10
7350 D 4
7351 E 5
7360 D17
L
7365 D18
7366 E18
7367 D19
7368 E19
7380 G17
T824 D20
T825 D20
T826 D21
T827 I20
T828 I20
T829 I21
T832 E 5
M
T840 F 2
T842 D 2
T843 D 2
T844 D 2
T845 D 2
T846 C 2
T847 E 2
20
21
GRUNDIG Service
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