Grundig CD 21, Service Manual

Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs

CD 21 / CD 22

Schaltpläne und Druckplattenabbildungen / Circuit Diagrams and Layout of PCBs

CD 21 / CD 22

GRUNDIG Service

GRUNDIG Service

2 - 11

2 - 12

DAC-Teil / DAC Part

-

-

-

-

LEFT

RIGHT

-

-

-

-

-

HPR

HPL

+10

-10

GND

GND

GND

22nF

2506

100n

2310

150pF

2308

150pF

2305

220pF

2307

1nF

2514

1nF

2505

220pF

2304

100n

2281

22nF

2302

1300

2

1300

4

1300

1

1300

3

1301

3

1301

2

1301

1

1301

4

1301

5

4

5

1

6

7

8

9

10

11

12

13

2

3

G

F

E

D

C

B

A

I

H

G

F

E

D

C

B

A

I

H

4

5

1

6

7

8

9

10

11

12

13

2

3

+5

+5

-10

-10

+10

+5

+5

-10

+10

-10

KILLR

KILL

KILL

KILLL

DACCL

DACWS

DACDA

TDA1545

7280

1

3

6

8

7

5

4

2

SPARE SOURCE

SPARE SOURCE

IBR

IBL

REFERENCE

SOURCE

RREF 11k

IOR

IOL

IREF

CONTROL

TIMING

AND

INPUT/OUTPUT REGISTER

INPUT/OUTPUT REGISTER

RIGHT BIT SWITCHES

LEFT BIT SWITCHES

11-BIT PASSIVE

11-BIT PASSIVE

DIVIDER

DIVIDER

RIGHT

LEFT

DATA

BCK

WS

32 (S-BIT) CALIBRATED

32 (S-BIT) CALIBRATED

VDD

VSS

1 CALIBRATED

1 CALIBRATED

CURRENT SOURCES

CURRENT SOURCES

2k2

3361

2k2

3362

3k9

3305

22k

3307

1k

3363

22k

3306

1k

3360

3k9

3304

18k

3300

15k

3301

47k

3370

220k

3368

47k

3371

220k

3369

2k2

3367

1k

3366

2k2

3365

1k

3364

47uF/25V

2303

47uF/25V

2301

47uF/16V

2280

4u7F/50V

2309

4u7F/50V

2306

47uF/16V

2300

BC338

7360

BC338

7361

BC338

7363

BC338

7362

7364

BC558B

7365

BC558B

6360

1N4148

6361

1N4148

1R

3303

3R3

3280

1R

3302

4,7uH

5301

4,7uH

5300

8

7

5

6

NJM4560

7300

+

-

4

1

3

2

NJM4560

7300

+

-

ONLY CD 22

ONLY CD 22

+3.2V

2.0V

2.0V

+3.2V

+3.2V

-10V

+10V

+3.2V

-8V in PLAY
+5V in STOP

-8V in PLAY
+5V in STOP

Bauteil

X

Y

Component

1300

G 13

1300

D 13

1300

E 13

1300

E 13

1301

A 13

1301

B 13

1301

B 13

1301

E 13

1301

F 13

1302

I

10

1303

I

12

2280

C

5

2281

C

6

2300

E

8

2301

E

9

2302

E 10

2303

F

9

2304

C 10

2305

B 10

2306

C 10

2307

G 10

2308

H 10

2309

G 10

2310

E

8

2505

D 13

2506

B 13

2514

G 13

3280

C

5

3300

E

8

3301

E

8

3302

D

9

3303

E

9

3304

C 10

3305

G 10

3306

D 11

3307

G 11

3360

C 12

3361

D 12

3362

G 12

3363

G 12

3364

B 12

3365

C 12

3366

F 12

3367

F 12

3368

I

9

3369

B

9

3370

H

6

3371

B

6

5300

B 10

5301

H 10

6360

H

9

6361

B

9

7280

C

7

7300

C 10

7300

F 10

7360

D 12

7361

G 12

7362

C 12

7363

F 13

7364

H

8

7365

B

8