*

B

H

M

N

D2

D3

D4

+5C

D5-

D1

i

+5    ^

USER

GND ^

3048 0200 R

+5B

T

3839

SERVO CIRCUIT DIAGRAM

da

2834

22uF

40V

2836

47p

—T

oo-ic .X.

2835

100n

Ol

n

3840

7820

BF840

3849    2840

OSO-II

3847

7821

BC848B

3842

7822

BC858B

3845

EMU

180p

3850

2842

330p

3852

3854

3855

1

I

2841

22u/40V

2837

47p

2838

100p

2839

18p

1812- 9

1812*10

1812- 12

1812- 7

3810

+5B

<3*

8

J0O

1812- 11

I

3807

OD

1812- 8

2803

X ¹ⁿ⁵    3806

-CM}

I

2804

CONN. 1812 T0/FR0M CDM

1812- 6

7825

BC818

Jseop

+5B

A

7801

MC7805

1812* 5

2896 |22uF/25V

w~~

2898

47uF/25V

3815

4850

—tSSa

I

2897

47uF/25V

18

I

3843

<30

3846

EMU

2843

180p

7823

BC848B

7824

BC848B

cD

(*>

3651

3853

00

2815

100n

2813

22n

12

<

*o

>

01

X 2809 J 220p

51

2807 J 220p

I

2805 J220P

I

2806 J220p

I

2808 J 220p

I

2810 J220p

10

11

DISC POSITION DETECTION (CARROUSELIS TURNING)

^_^300msec

02

03

D4

R2

A/D

<

cn

«>

>

a

«rt

<n

>

I

8

SWITCH 1821

OPEN: H CLOSE: L

SWITCH 1820

OPEN: H CLOSE: L

4    5    1    2 • ' 3    4    5

ja1,5sec j !^60m$ec

A A

»

co

4891

«0

DJSPOS

1820

5V IN PLAY MODĘ

ir>

o

O

to

o

O

00

T

O

a:

a

00

w

O

a

ta

o

HF

X.

«o

DC

J

CONN. 1811 TO CONN. 1010 ON DECODER CIRCUIT

3844

3812

+5A

3813 £

Urel

[- 580, r

5802

3811 "I IM ł™

2811

100n

1802 8,46MHz

20

28

Y

3814

m

18

19

13

7800

TDA1301

o

'O

TJ

>

CM

O

"O

•o

>

5

i-

X

CL

_j

K-

X

CL

PREPROCESSING

VREF

GENERATOR

21    4

+5B

00

%

ta

ar

<

o

CONTROL

FUNCTION

OUTPUT

STAGES

CONTROL PART

MPROC

INTERFACE

g

g

N

(2

£

e

co

Ł>

co

a

t/i

16

-JC

o

4892

F0

23

RA

22

SL

24

15

3816

14

27

26

25

4890

4893

+5B

CM

4851

+5B

4853

HO—

cg

i

oo

o

O

w

co

V*

i

00

ta

GE

co

<    -i

s    y

ca    ta

co

T

o

_)

10

00

a:

<

o

CONN. 181' ON DECOD