Kenwood Dp-m993 User manual

COMPACT

DISC

PLAYER

DP-M993/Moo00/M6630

SERVICE

MANUAL

KENWOOD

`

Metallic

cabinet

Panel

(6

disc

magazine)

Panel

(Front)

Dressing

plate

(A01-3028-01)

(A29-0334-03)

(A60-0386-02)

(B03-2827-04)

i

d

i

Knob

(Power)

Panel

(Tray)

Sub

panel

(K27-2095-04)

(A29-0335-03)

(A22-1617-01)

Power

cord

bushing

AC

power

cord*

(J42-0083-05)

(E30-)

Slide

switch

(Power

type)*

Phono

jack

(Output)

Miniature

phone

jack

(S.

control)

Foot

(Front,

rear)

(531-)

(E63-0076-05)

(E11-0188-05)

(J02-0366-15)

Photo

is

DP-M993.

*Refer

to

parts

list

on

page

39.

In

compliance

with

Federal

Regulations,

following

are

repro-

ductions

of

labels

on,

or

inside

the

product

relating

to

laser

product

safety.

KENWOOD-Corp.

certifies

this

equipment

conforms

to

DHHS

Regulations

No.

21

CFR

1040.

10,

Chapter

1,

Subchapter

J.

DANGER

:

Laser

radiation

when

open

and

interlock

defeated.

AVOID

DIRECT

EXPOSURE

TO

ВЕАМ.

~

DP-M993/M5550/M6650

`

CONTENTS

/

ACCESSORIES

/

CAUTION

үт

E

QU

|

CONTENTS

3.

RF

Amplifier

:

ТАВ19ЛЕ

(1С1)..........................

16

`

|

ACCESSORIES

E

2

4.

Digital

Signal

Processor

:

MC159236AFU

(IC2)......18

of

CAUTION

PEDE

2

5.

D/A

Converter

:

SM5871AN

(IC14)

................

21

BEFORE

OPERATION

............................................

23

MECHANISM

OPERATION

DESCRIPTION

...........

23

EXTERNAL

VIEW

ADJUSTMENT

.......................

a.

tans

25,

27

:

DEN,

а

die

rue

4

RÉGLAGE

uu

ин

нанете

таква

зена

26,

27

:

DP-M6650

...................

a

наннан

ананан

5

ABGLEICH

а

cuoc

tentia

de

oeil

Cobos

26,

27

CONTROL

hee

епа

ата

ас

6

PC

BOARD

(COMPONENT

SIDE

МІЕМУ)................

28

REMOTE

CONTROL

OPERATION

...........................

7

SCHEMATIC

DIAGRAM

.......................................

31

DISASSEMBLY

FOR

ВЕРАШ...................................

8

EXPLODED

VIEW

BLOCK

DIAGRAM

.............

creen

11

:

MECHANISM

.............

eren

tette

36

CIRCUIT

DESCRIPTION

“UNIT

Sy

a

рыбында

а

o

TEE

37

1.

Test

Mode

eerte

12

PARTS

LIST...

tet

али

нишана

тоа

нанио

39

2.

Main

-com

:

uPD75217CW-136

(IC6)

...........

14

SPECIFICATIONS

................................

BACK

COVER

ACCESSORIES

4

*

Audio

cord

*

System

control

cord

*

Magazine

(with

6

disc

trays)

(E30-0505-05)

(E30-2733-05)

(J19-3394-13)

*

AC

plug

adapter

(M

type

only)

*

Remote

control

unit

1

*

Battery

("AAA"

or

"R06")

(E03-0115-05)

(A70-0927-05

:

DP-M5550,

M6650

only)

(

-

:

DP-M5550,

M6650

only)

<

(Except

for

some

areas)

For

the

unit

with

a

European

AC

plug

in

areas

other

than

Europe.

CAUTION

*

Caution

of

the

Service

Manual

Р

This

manual

is

available

3

models,

DP-M993,

DP-

M5550

and

DP-M6650.

Before

using

this

manual,

please

check

model's

name.

CD

player

unit

(X32-)

parts

list

is

written

the

parts

for

all

of

3:

models.

Also

refer

to

comparison

table

in

schematic

diagram.

Model

name

[OD

piayerunt

|

Mechanism

|

DP-M993

X32-2470-23

(Y)

X92-1569-11

DP-M6650

X32-2470-10

(K,

P,

X,

T,

E)

X92-1569-11

X32-2470-21

(M,

Y)

X92-1569-11

*

Note

transportation

and

movement

Carry

out

the

following

operations

before

transport-

ing

or

moving

this

unit.

1.

Remove

disc

and

the

magazine

from

the

unit

and

|

turn

the

power

ON.

2.

Wait

a

few

seconds

to

check

that

the

display

ap-

pears

as

shown

in

the

illustration

at

the

right.

3.

Turn

the

power

OFF.

DP-M993/M5590/M6690

`

BEFORE

OPERATION

Beware

of

Condensation

When

water

vapor

comes

into

contact

with

the

surface

of

cold

material,

water

drops

are

produced.

If

condensation

occurs,

correct

operation

may

not

be

possible,

or

the

unit

may

not

function

correctly.

This

is

not

a

malfunction,

however,

and

the

unit

should

be

dried.

(To

do

this,

turn

the

POWER

switch

ON

and

leave

the

unit

as

it

is

for

several

hours.)

English

Note:

The

unit's

power

supply

is

secondarily

connected.

Note

following.

The

unit

is

not

completely

disconnected

from

the

mains

as

long

as

the

power

cord

is

connected

to

a

wall

outlet.

Be

especially

careful

in

the

following

conditions:

e

When

the

unit

is

brought

from

a

cold

place

to

a

warm

place,

and

there

is

a

large

temperature

difference.

ө

When

a

heater

starts

operating.

e

When

the

unit

is

brought

from

an

air-conditioned

place

to

a

place

of

high

temperature

with

high

humidity.

€

When

there

is

а

large

difference

between

the

internal

temperature

of

the

unit

and

the

ambient

temperature,

or

in

conditions

where

condensation

occurs

easily.

Dansk

Bemærk:

Strømmen

til

apparatet

afbrydes

på

den

sekundære

side.

Vear

opmærksom

på

følgende.

Denne

enhed

er

ikke

fullstendig

koblet

fra

lysnettet

så

lenge

stikket

er

tilsluttet

stikkontakten.

Svenska

Observera:

Norwegian

Anmerkning:

|

Apparatens

strömförsörjning

kopplas

från

sekundärt.

V.g.

ge

akt

Strømmen

til

apparatet

ег

stått-av

på

sekundærsiden.

Vær

på

följande.

Apparaten

fránkopplas

inte helt

och

hållet

från

oppmerksom

på

det

fglgende.

Dette

apparatet

koples

ikke

strömnätet

medan

apparatens

nätsladd

ёг

ansluten

till

fullstendig

fra

nettet

så

lenge

støpselet

står

i

en

stikkontakt,

selv

växelströmsuttaget.

om

strømpryteren

settes

i

av-stilling.

Finnish

Huom:

Virta

yksikköön

on

kytketty

pois

sekundaaripuolelta.

Huomioi

seuraava.

Tämä

yksikkö

ei

ole

kokonaan

kypketty

pois

pää

virranjakajasta

kun

pää

katkaisin

on

liitettynä

virtatiiriin.

Warning

For

CANADA

DOC

REGULATION

"This

digital

apparatus

does

not

exceed

the

CLASS

B

limits

for

radio

noise

emissions

from

digital

apparatus

as

set

out

in

the

radio

interference

regulations

of

the

Canadian

Department

of

Communications.”

|

For

the

U.S.A.

FCC

WARNING:

This

equipment

may

generate

or

use

radio

frequency

energy.

Changes

or

modifications

to

this

equipment

may

cause

harmful

interference

unless

the

modifications

are

expressly

approved

in

the

instruction

manual.

The

user

could

lose

the

authority

to

operate

this

equipment

if

an

unauthorized

change

or

modification

is

made.

NOTE:

This

equipment

has

been

tested

and

found

to

comply

with

the

limits

for

a

Class

B

digital

device,

pursuant

to

Part

15

of

the

FCC

Rules.

These

limits

are

designed

to

provide

reasonable

protection

against

harmful

interference

in

a

residential

installation.

This

equipment

may

cause

harmful

interference

to

radio

communications,

if

it

is

not

installed

and

used

in

accordance

with

the

instructions.

However,

there

is

no

guarantee

that

interference

will

not

occur

in

a

particular

installation.

If

this

equipment

does

cause

harmful

interference

to

radio

or

television

reception,

which

can

be

determined

by

turning

the

equipment

off

and

on,

the

user

is

encouraged

to

try

to

correct

the

interference

by

one

or

more

of

the

following

measures:

А

--

Reorient

or

relocate

the

receiving

antenna.

--

Increase

the

separation

between

the

equipment

and

receiver.

--

Connect

the

equipment

into

an

outlet

on

a

circuit

different

from

that

to

which

the

receiver

is

connected.

--

Consult

the

dealer

or

an

experienced

radio/TV

technician

for

help.

DP-M993/M5990/M6650

EXTERNAL

VIEW

ES

Metallic

cabinet

Panel

(6

disc

magazine)

Panel

(Front)

Dressing

plate

(A01-3028-01)

(A29-0334-03)

(A60-0375-02)

(B03-2826-04)

KENWOOD

УУ

ACT

OSC

PLAYER

DP-MSOSG

[E

Knob

(Power)

Panel

(Tray)

Sub

panel

(K27-2095-04)

(A29-0335-03)

(A22-1617-01)

Power

cord

bushing

AC

power

cord*

(J42-0083-05)

(E30-)

SYSTEM

CONTRO.

Os)

Slide

switch

(Power

type)*

Phono

jack

(Output)

Miniature

phone

jack

(S.

control)

Foot*

(S31-)

(E63-0076-05)

(E11-0188-05)

(J02-)

Photo

is

DP-M5550

(with

REMOTE

CONTROL).

*Refer

to

parts

list

on

page

39.

-4.21-12.2.1..2-...........2...........-..-...-...............ш

DP-M993/M5550/M6650

`

EXTERNAL

VIEW

Knob

(Power)

Metallic

cabinet

Panel

(6

disc

magazine)

Panel

(Front)

Dressing

plate

(K27-2095-04)

(A01-3028-01)

(A29-0334-03)

(A60-0374-02)

(В03-2826-04)

Phone

jack

(Phones)

Knob

(Phones

level)

Panel

(Tray)

Sub

panel

(E11-0190-05)

(K29-3928-04)

(A29-0335-03)

(A22-1616-01)

d

|

Power

cord

bushing

AC

power

cord*

(J42-0083-05)

(E30-)

CAUTION

`

ATTENTION

Hee

Slide

switch

(Power

type)*

Phono

jack

(Output)

Miniature

phone

jack

(S.

control)

Foot*

|

(531-)

(Е63-0076-05)

(Е11-0188-05)

(J02-)

Photo

is

DP-IM6650

(with

REMOTE

CONTROL).

*Refer

to

parts

list

on

page

39.

P-M998/M5550/M6650

|

CONTROL

К.

---.---........л

wa

Disc

No.

indicator

Program

Check

indicator

Program

indicator

TRACK

No.

|

l'ime

counter,

program

No.

|

А

SINGLE

time

Disc

indicators

Indicator

TOTAL

time

RANDOM

indicators

:

(ONE

—

ALL)

A

z

es

‚

к}

шш

EDIT

indicators

>.

Play

Indicator

Music

calendar

(1-20)

Pause

indicator

REPEAT

indicator

Disc

selector

keys

Remote

sensor

(IP),

[DISC

1/-

|

PLAY/PAUSE

key

POWER

switch

|

Magazine

insertion

slot

Displa

STOP

key

PHONES

Jack:

Plus-1

disc

tray

‘PHONES

LEVEL

;

OPEN/CLOSE

key

F

DP-M6650

only

;

control

:

EEEE

d

DP-M6650

only

EE

EJECT

key

Numeric

keys

|

MISI

ыны

(B)-

)

Search

keys

(zl,

DS

)

CHECK

key

P.MODE

key

————,

|

ems

CLEAR

key

TIME

DISP.

key

EDIT-2

key

REMOTE

CONTROL

OPERATION

OPEN/

CLOSE

key

DISC

SELECTOR

keys

Discselector

key

Dei

Plus-1

disc

(P)

P.MODE

key

CLEAR

key

Numeric

keys

0)

H

Gage

(11-0),

ED

TIME

DISP.

key

Skip

keys

REPEAT

key

Play/Pause

key

RANDOM

key

Stop

key

Search

keys

-

DP-M993/M5550/M6650

·

DISASSEMBLY

FOR

REPAIR

1.

How

to

Disassemble

*

When

the

power

can

not

be

turn

ON,

or

when

the

tray

can

not

be

opened

by

pressing

the

OPEN

key.

1.

Insert

the

screw

driver

to

the

bottom

hole

and

slide

the

lever

frontwards

with

screw

driver

(

Q9).

2.

Pull

out

the

tray

(@).

3.

Remove

the

tray's

panel

(

Ө),

and

push

the

tray

backwards.

4.

Remove

the

front

panel

screws

(Ө

).

5.

Remove

the

GND

wire

screw

(DP-M6650

only)

(Ө).

6.

Remove

connector

(Ө

).

7.

Disengage

the

stoppers

of

the

both

side

of

the

front

panel

(Q9).

8.

Remove

B

connectors

(

Q).

9.

Set

CN2

connector

to

LD

short

(@).

10.

Remove

mechanism

screws

(

@).

Фх2

@

Аа

аса

шш:

DP-M993/M5550/M6650

DISASSEMBLY

FOR

REPAIR

2.

How

to

Replace

the

Pickup

©

*

The

following

description

is

the

unit

of

the

mechanism

only.

1.

Remove

magazine

plate

ass'y

screws

(

Q9).

2.

Remove

Vertical

Motor

screws

(@).

|

PL

3.

Slide

the

both

of

sliders

backwards

(Ө

),

and

re-

Е

move

the

holder

upwards

(Ө

).

|

Note:

If

mounting

the

holder,

set

the

shaft

to

holder

as

figure

(@).

If

mounting

the

sliders,

set

the

sliders

to

fully

back-

ward

position

(dot

line

in

figure).

DP-M993/M5550/M6650

DISASSEMBLY

FOR

REPAIR

E

4.

Turn

the

unit

upside

down,

and

solder

the

short

land

of

the

pickup

(Ф)).

5.

Remove

2

connectors

(@).

9

s

e

lands

©

(у

6.

Turn

the

stopper

(Ө).

7.

Remove

the

pickup

upwards

(Ө

).

AN

WEI

XIHLVW

'

oS]

FR

ME»

-о

pa

Aluc

ободу

оваа

A0

'

Os

ee

al

LENEI

r[

yosnas

|

!

WI

1

|мосоман

[7

TUO

bene

Fi

iu

!

|

==

|

ла

|

fom)

lr

^

Ka

=

|

(279)

1121

оға

819

940

РАН

Е

ШЫ

9£1-MOZL2S4Qdr

821

DP-M993/M5550/M6650

x

(3)

"OEO

“Өлер

1

|

=

|

cc

|

=

Let

ә

кн

тумна:

ÁAluo0s99W-dq

ca

ОННОМАЅ

ASN

LOS

|

Е

Ajuo

0S99W-dG

неки

|

©

индика

асаа

q

П

1

=l

|

IX

1

co

2

|

v—

г

eJ

1

|

—

ы

|

OX

Ix

E

|

Lemas

_

__

jo

w-—

c

sss

(хонл)хоно

Ма

=

Q

(vivq)inov

NVLZ8SINS

7101

DP-M993/M5550/M6650

CIRCUIT

DESCRIPTION

1.

Test

Mode

Setting

the

test

mode

This

microprocessor

can

be

put

the

test

mode

by

just

short-circuiting

the

test

pins

(#9

and

#10)

even

in

the

test

mode

(normal

condition).

Input

key

Function

1

STOP

|

(1)

Focusing

servo

...............

esee

OFF

(2)

Tracking

servo

...

(3)

Feed

eene

deg

eege

a:

2

REPEAT

(1)

Laser

аи

ин

ON

(In

STOP

mode

only)

3

CHECK

(1)

Focusing

servo

...

(2)

Tracking

servo

(3)

Feed

вегуо.

ыш.

4

CLEAR

(1)

Focusing

serge

ON

А

(2)

Tracking

servo

...............

sss

ON

|

(3)

Feed

servo

5

PLAY

(1)

Focusing

servo.........................................

ON

(2)

Tracking

servo

(зуБееф

земо

тыны

ем

дыны

|

6

DISC1

Load

No.1

disc

to

No.6

in

order.

Read

the

TOC

(table

of

contents)

of

disc

No.3

to

No.6

in

order.

TEST

mode

is

cancelled

after

reading

the

TOC

of

No.6

disc,

and

then

playback

the

1st

track.

Track

No.7,

8

and

6

are

programmed,

and

playback

(Track

No.6

is

playbacked

under

double

speed.

Also,

TEST

mode

is

cancelled).

DISC3

~

6

Load

the

decided

No.

disc

which

is

pressed

by

the

disc

key

and

set

to

STOP

mode.

ex.

Disc

No.4

key

is

pressed

(PLAY,

CHECK

and

CLEAR

keys

are

available

to

operate).

Turns

all

FL

display

lamps

ON.

12

|

DPMOO3/MB6S0/MOGS0

|

CIRCUIT

DESCRIPTION

Input

key

Function

DOWN

Turns

all

FL

display

lamps

OFF.

Wa

"Disc'

and

"1

~

6"

are

not

OFF,

because

circuit

is

static

operation.

Turns

"EDIT-1*

letters

ON.

Turn

"EDIT-2"

letters

ON.

In

the

STOP

mode,

moves

the

pickup

slightly

toward

the

outer

position

of

disc.

іп

the

STOP

mode,

moves

the

pickup

slightly

toward

the

inner

position

of

disc.

Numeric

key

(1-10)

Jumps

tracks

as

shown

below.

/

[key

0

[31]2]|83,|4,58]

|

Number

of

tracks

|

1

|

4

|

8

|

32

|1000)

e

|6

Key

л

Number

of

tracks

|

Direction

1

|

1

i

1

DP-M993/M5550/M6650

-

CIRCUIT

DESCRIPTION

E

2.

Main

u-com

`

uPD75217CW-136

(ІС6)

2-1.

connection

"e

осо

o

м

Oo

Q

>

о N

=

MAIN

р-СОМ

:

uPD75217CW-136

SDATA

BUSY

BUCK

BUSO

|

BUS1

KD3

[=]

о

=

m

Rad

m

-

BUS2

|

BUS3

FL

|

——

|

G1

G2

G3 G4

G5

G6

G7 G8

G9

abcdefghilklmn

14

CIRCUIT

DESCRIPTION

2-2.

Block

diagram

and

key

matrix

10

(--

ІС6

Output

expander

CXD1067P

IC8

2-3.

functions

:

uUuPD75217CW-136

No.

|Pinname

МО

| —

Function

|

Clock

output

port

for

CXD1067

and

TC74HC165

О

|Data

output

port

for

CXD1067

|

|Data

input

port

for

TC74HC165

|

(Remote

control

signal

input

port

|

"Photo

interrupter

input

port

for

mechanism

up/down

Clock

output

port

for

NM93C66

Data

output

port

for

NM93C66

Not

use

Latch

signal

output

port

for

CXD1067

О

"Not

use

STROB

signal

output

port

for

SDATA

VO

||DATA

signal

input/output

port

for

System

serial

communication

System

serial

communication

ep

MAIN

-COM

:

uPD75217CW-136

Intput

expander

TC74HC165AP

ври

Serial

code

UO

SERVO

D.S.P.

MC159236AFU

[C2

ICH

[Pin

No.

[Pin

name

0

|

Function

—

|

23

|ССЕ

|

О

|CCE

control

port

for

MC159236AFU

[

24

|BUCK

|

O

[BUCK

control

port

for

MC159236AFU

~

BUS3

MC159236AFU

Cæ

[sc

[oss

71

ГІ

[System

бостира]

36-38

Display

digit

control

port

E

Ен

EN

иш

ЕШ

|

Oo

|

[o|

50

~

55

|

p~k

Display

segment

control

port

aRU

=

EN

Return

key

input

of

key

matrix

Display

drive

negative

power

supply

(-35V)

Display

pre-driver

negative

power

supply

(-5V)

Display

segments

control

port

(key

scan)

Power

supply

(4-5V)

-

DP-M993/M5550/M6650

15

|

16

DP-M993/M5550/M6650

—

CIRCUIT

DESCRIPTION

3.

RF

Amplifier

:

TA8191F

(IC1)

Out

line

TA8191F

is

an

LSI

for

focus

tracking

servo

appli-

cable

to

PUH

of

3

beam

type

in

a

CD

player

system.

Features

«

RFamplifier,

focus

error

amplifier,

and

tracking

error

amplifier

are

built

in.

*

Focus

tracking

servo

amplifier

is

built

in.

e

Phase

compensation

amplifier

and

LPF

amplifier

are

built

in.

е

ALPC

amplifier

is

built

in.

3-1.Block

diagram

FMEP

FMEN

FMEO

FMPO

PVR

DMEO

DMEN

8

e

2уно

G4

2vRP

69

2VRN

TS20

6

SEL

input

TS2N

68

[L

|

Va

|

ON

|

OFF]

ON

|

OFF.

«1

[Wa

[уне

Гом

|

ON

|

OFF

ON

[FOCUS

SEARCH

У

H

төз

6

(FOCUS

SERVO

ON

:

FOK)

TPI

TNI

RFN

RFO

DME

35ТАТЕ

DET

RFI

©

DP-M093/M5550IM6650

-

CIRCUIT

DESCRIPTION

3-2.

fuction

[Pin

Мо.

|

пате

(1/0

|

Function

|

TPO

To

Sub

beam

l-V

amplifier

(TP

AMP)

output

terminal.

TPI

Sub

beam

l-V

amplifier

(ТР

АМР)

input

terminal.

TNI

|

Sub

beam

l-V

amplifier

(TN

AMP)

input

terminal.

F

Main

beam

l-V

amplifier

(FN

AMP)

input

terminal.

[

5

|

FP

[i

|

ма

Беат

ЬУ

amplifier

(FPAMP)

input

terminal,

ooo

O

Monitor

photo

diode

amplifier

(MD

AMP)

input

terminal.

|

9

|

RFO

[О

|

RFamplifier

АМР

[

10

|

RH

[1

|

RE

ripple signal

generating

circuit

input

termina

sssi

О

11

VREF

Reference

voltage

output

terminal.

12

RERP

O

|

RF

ripple

signal

output

terminal.

13

O

|

Flaw

sensing

output

terminal.

|

FEB

[О

|

Focus

error

balance

adjustment

input

terminal.

О

|0

|

FSN

|

1

|

Focus

output

amplifier

(FS

AMP)

negative

phase

input

terminal

—

|

O

О

л

=

|

al

20

[

22

|

сю

|-

оао

|

25

|

DMEN

|1

|

Disc

motor

amplifier

(SM

АМР)

negative

phase

output

termina.

U

III

|

[

26

|

омео

[о

|

Disc

motoramplifier

SM

АМР

outputtermina

ooo

o

DMPO

|O

[

30

|

FMEO

|

O

|

Feed

motor

amplifier

(FM

AMP)

output

terminal,

ooo

O

[

3:

|

FMEN

|

!

|

Feed

motor

amplifier

(FM

AMP)

negative

phase input

terminal

ooo

o

2VREF

amplifier

(2VREF

AMP)

positive

phase

input

terminal.

2VREF

amplifier

(2VREF

AMP)

negative

phase

input

terminal.

Tracking

servo

amplifier

2

(TSP

AMP)

output

terminal.

TS2N

Tracking

servo

amplifier

2

(TSP

AMP)

negative

phase

input

terminal.

|

39

|

TS2P

Tracking

servo

amplifier

2(Т5Р

AMP)

positive

phase

input

terminal.

.

TS10

O

|

Tracking

servo

amplifier

1(TSP

AMP)

output

terminal.

4

|

Tracking

servo

amplifier

1(TSP

AMP)

negative

phase

input

terminal.

Tracking

servo

amplifier

1

(TSP

AMP)

positive

phase

input

terminal.

Tracking

output

amplifier

(TS

AMP)

output

terminal.

Tracking

output

amplifier

(TS

АМР)

negative

phase

input

terminal.

~

|

-

|

-

|

—

со

|со|~

|

©

17

D

18

P-M993/M5550/M6650

-

CIRCUIT

DESCRIPTION

4.

Digital

Signal

Processor

:

MC159236AFU

(ІС2)

Outline

MC159236AFU

is

a

1-chip

processor

for

step-out

protection

and

interpolation,

EFM,

error

correction,

microcomputer

interface,

CLV

servo

and

focus

track-

ing

servo

of

the

CD

player.

Features

*

CMOS

silicone

structure

for

high-speed

and

low

power

consumption.

*

Flat

package

with

80

pins.

Stable

synchronous

pat-

tern

sensing

function,

synchronous

signal

protection

and

interpolation

function.

е

Built-in

EF

demodulation

and sub

code

demodulation

circuits.

•

CIRC

correction

theoretical

formula

is

used

for

single

correction

by

C1

correction

part

and

double

correc-

tion

by

C2

correction

part.

4-1.Block

diagram

Data

slicer

||

sensing

circuit

CLV

servo

circuit

PLL

circuit

Synchronous

sepa-

ration

circuit

/

EFM

demodulation

cir-

Error

pointer

Correction

output

circuit

(Audio

output)

=i

W

Address

circuit

Correction

ALU

IDEE

wa

mum

|

Error

location

ROM

EE

Sub

ems

ry»

de-

Q

data

stor-

EE

modula

tion

age

RAM

HE

Ө

О

MODO

SBOK

XI

xo

(=)

Уррр

(Ег?

CD

bus

interface

anno

(5)

•

Jitter

absorbing

capacity

of

+5

frames.

•

Smooth

muting

by

zero

cross

sensing

is

possible.

*

Attenuation

of

12dB

is

possible.

*

Built-in

16k

S-RAM.

*

Built-in

digital

out

circuit.

*

Built-in

data

slicer

and

analog

PLL

(with

adjustment-

free

VCO)

circuits.

e

Automatic

adjustment

function

of

focus

and

track-

ing

loop

again.

*

Built-in

AFC

and

APC

circuits

for

disc

motor

CLV

servo.

Built-in

focus

and

tracking

servo

control

circuit.

Tracking

search

control

applicable

in

any

mode.

Built-in

microcomputer

interface

circuit.

Read

timing-free

sub

code

О

data.

*

Applicable

to

double-speed

operation.

16k

SRAM

Focus

/

Tracking

servo

Tracking

search

control

circuit

Servo

status

signal

generation

circuit

Correction

system

timing

generator

unu

«а

lli

ТАП,

m

o

uo

o

m

OO

OCIO

BUS1

BUS2

BUS3

BUCK

4NCK

CCNT

SUBD

CLCK

DP.M093/M5550/M6650

CIRCUIT

DESCRIPTION

т)

Қ

4-2.

fuction

No.

|

name

|1/O

Function

1

TESTA

|

Test

terminal,

normally

"H"

or

open.

TEST5

E

Test

terminal,

normally

"H"

or

open.

MODO

RH

Input

terminal

for

inside

operation

mode

setting.

COFS

|

О

|

Correction

system

frame

period

signal

output

terminal,

7.35kHz.

SPDA

Processor

status

signal

output

terminal.

Correction

judgement

result,

memory

buffer

capacity,

etc.

ЕСЕП

ЕГЕ

Playback

system

frame

period

signal

output

terminal,

7.35kHz

7

SUBSYC

Sub

code

sink

signal

output

terminal.

Sub

code

О

data

output

terminal.

SB

B

Output

terminal

for

CRC

check

result

of

sub

code

Q.

|

10,

11

XI,

XO

/O

|

Crystal

oscillator

connection

terminal.

VDD

Digital

source

voltage

terminal.

13

GNDD

-

|

Digital

ground

terminal.

14

~

17

|

BUSO-3

|O

|

Input

/output

terminal

for

transmission

and

receiving

of

commands

and

data.

‘CCE

Input

terminal

of

chip

enable

signal

for

transmission

and

receiving

of

commands

and

data.

Bus

line

is

active

at

"L"

2

[|

2

|

UMEN

Input

terminal

of

signal

to

inhibit

renewal

of

control

bit

of

sub

code

О

data.

Renewal

is

inhibited

at

SUBD

E

Sub

code

P-W

output

terminal.

CLCK

ZW

Sub

code

P-W

data

reading

clock

input

terminal.

25

LOCK

O

|

Lock

status

output

terminal.

If

sink

pattern

in

EFN

signal

of

run-away

detection

information

is

not

detected

for

17rns,

this

terminal

is

set

to

"L".

TEST1

|

Test

terminal,

normally

"H"

or

open.

DFCT

O

|

Defect

sensing

signal

output

terminal.

When

defect

detected,

VREF.

Normally

HiZ.

s

28,

29

TEL2,

1

Єй

Analog

switch

output

terminal

for

tracking

gain

adjustment,

VREF

or

HiZ.

30

TGUL

O

|

Analog

switch

output

terminal

for

changeover

of

low-band

phase

compensator

of

tracking

servo

loop.

When

shock

detected,

HiZ

(gain

increased),

normally

VREF.

31

TGUH2

Analog

switch

output

terminal

for

medium

and

high

band

tracking

servo

loop.

ЕЕЕ

О

|

When

shock

detected,

HiZ

(gain

increased),

normally

VREF.

TGUH1

used

for

normally

replay

and

TGUH2

used

for

|

32

Tom

|

double-speed

replay.

33

Tracking

actuator

kick

signal

output

terminal.

Kicked

in

outside

peripheral

direction

at

"H"

and

inside

peripheral

FMON

=

~

18

19

20

1

direction

at

"L".

Analog

switch

output

terminal

for

ON

and

OFF

of

feed

servo.

AFC

signal

output

terminal

for

disc

motor

CLV

servo.

SEL

Hiz

H

Normal

play

etc.

(Focus

servo

ON

:

РОК)

19

DPMOO3MESSOMGSO

——

CIRCUIT

DESCRIPTION

Function

FCSloutpu|

_______Орегабоп

—

|

FORST

H

Lens

moves

far

from

disc

L

FOSET

Lens

moves

near

disc

Other

than

above

HiZ

Other

than

focus

search

Command

FKIC

output

Operation

FGASR

Lens

moves

far

from

disc

43

О

FSCI

Focus

actuator

drive

signal

output

terminal

in

focus

search

mode.

Focus

actuator

drive

signal

output

terminal

in

focus

gain

adjustment

mode.

FGASS

Other

than

above

Analog

switch

output

terminal

focus

gain

adjustment.

Focus

error

signal

input

terminal.

Analog

switch

input

terminal

for

tracking

error

signal

sample

holding.

Analog

switch

output

terminal

for

tracking

servo

operation.

Lens

moves

near

disc

Other

than

focus

gain

adjustment

Sub-beam

addition

signal

input

terminal.

RF

ripple

signal

input

terminal.

Standard

voltage

input

terminal.

RF

signal

input

terminal.

GNDA

-

|

Analog

ground

terminal.

DTSC2

Єй

EFM

signal

reverse

output

terminal

for

data

slice

control.

О

EFM

signal

monitor

output

terminal.

57

DTSC1

O

|

EFM

signal

ordinary

output

terminal

for

data

slice

control.

Analog

source

voltage

terminal.

'

PDO

output

control

terminal.

PDO

output

is

forcedly

set

їо

НІ2

at

"L".

Phase

error

signal

output

terminal

between

EFM

signal

and

PLCK.

TMAX

signal

output

terminal.

When

system

TMAX

output

s

locked,

HZ.

LShoterhenspedhedpeiod

|

—

Hovan

—

1]

Specified

period

63

LPFO

LPF

amplifier

output

terminal

for

PLL.

64

Filter

terminal

for

VCO.

|

65

|

тЕЗТХ

||

|

Outside

VCO

clock

input

terminal.

66

PLCK

O

|

Clock

output

terminal

for

reading

replay

data.

67

GNDD

-

|

Digital

ground

terminal.

68,69

|

MOD1,2

|

1

|

Input

terminal

for

inside

operation

mode

setting.

|

то

|

моск

[о

|

Ward

clock

output

terminal,

normelysetto882kHz.

__

4

í

|

0

|

71

CHCK

Channel

clock

output

terminal,

normally

set

to

44.1kHz.

О

[

okse

[i

[

inside

cock

selection

terminal

ws

[

Hs

о

|

Output

terminal

for

double-speed

monitor.

Doublespesd

ората

EMPH

|o

|

Emphasis

ON/OFF

indication

signal

output

terminal.

Emphasis

is

one

at

"H".

TEST3

Ий

Test

terminal,

normally

"H"

or

open.

|

во

|

мск

fol

Master

clock

output

terminal.

72

73

74

75

76

77

78

79

20

Kenwood DP-M993 User manual

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