Aiwa Dx-d91 User manual

S/M

Code

No.90-006

DATE

OF

ISSUE

2,/1990

-

T

AIWA

DX-D91

SERVICE

MANUAL

e

BASIC

CD

MECHANISM:

KSL

—

150ACM3

e@

TYPE.

Y,YK

COMPACT

DISC

PLAYER

@

DX-—D91

is

the

Compact

Disc

Player

which

is

connected

to

MX—D91/D86

only.

SPECIFICATIONS

Type:

Compact

disc

digital

audio

system

Disc:

Compact

disc

Scanning

method:

Non

contact

optical

scanner

(semiconductor

laser

application)

Laser:

Semiconductor

laser

(A=780

nm)

Rotation

speed:

Approx.

500

rpm

-

200

rpm

(CLV)

Approx.

900 rpm

~

360

rpm

(CLV)

(at

high

speed)

(only

when

connected

to

the

FX-W919

or

FX-W868

cassete

:

deck)

Error

correction:

Cross

interleave,

Reed

Solomon

code

No.

of

channels:

2

channel

D-A

conversion:

16-bit

linear

Wow/Fiutter:

Unmeasurable

Dimensions:

360

(W)

x

118

(H)

x

304

(D)

nm

Weight:

3.4

kg

Frequency

response:

10

Hz

-

20

kHz,

+1

dB

Harmonic

distortion:

0.015%

(1

kHz,

0

dB)

Dynamic

range:

92

dB

Channel

separation:

84

dB

(1

kHz,

0

dB)

S/N

ratio:

96

dB

(1

kHz)

*

Design

and

specifications

are

subject

to

chinge

without

notice,

AIWA

Co.,

Ltd.

|

Tokyo

Japan

CAUTIONS

WHEN

SERVICING

The

DX-D91

has

no

power

supply

circuit.

Power

should

be

supplied

from

MX-D91,D86

using

an

Il-core

flat

cable.

During

repair,

connect

DX-D91

to

the

MX-D91,D86

to

supply

the

power.

When

there

is

no

MX-D91,D86,

supply

the

power

in

the

manner

below.

(When

repairing

without

MX-D91,

D86)

i,

Remove

soldering

from

@

and

@

terminals

of

T51

not

to

flow

DC

through

TS51.

2.

Connect

the

Multi-Power

Supply(LPS-9088)

in

the

manner

below.

*FL51

does

not

light,

as

AC

power

for

FL51

is

not

supplied.

The

voltages

below

are

supplied

to

each

CONIO1

terminal

from

the

external

power

source,

MAI

.

es

Len]

Cd)

Leh

OUT

PUT

AUDIO

GND

Rch Rch

OUT

GND

AC-COM

GND

AC-1

-13V

AC-2

+13V

3.

Multi-Power

(LPS-9088)

Connection

Connect

to

Jl

of

the

LPS-9088

using

a

multi-conversion

harness.

oShbFt

bar

,

:

Jumper

cable

Conversion

harness

connection

:

plug’s

ground

cable

:

Power

output

terminal

:

Relay

terminal

| 1

2

:

jack

3

4

5

External

unit

External

unit

DX-D91<—

|

¢ 6

|

—

Multi-Power

Supply

(Amplifier,

etc.)

(Sourse)

7 7

‘|_|:

bend

Jon!

;

:

INPUT

10

LPS-9088

+13V

-13V

Power

terminal

(4) (=)

Mi

ACCESSORIES

/PACKAGE

LIST

PART

NO.

REF.

NO.

PART

NO.

DESCRIPTION

COMMON

=

Q’

TY

CHANGED

TO

MODEL

1

*&

B9-VX5-904-019

INSTRUCTION

BOOKLET

(Y)

x

1

2

*&

89-VX5-91

4-018

INSTRUCTION

BOOKLET

(Y,

YK)

K

1

PROTECTION

OF

EYES

FROM

LASER

BEAM

This

set

employs

laser.

Therefore,

be

sure

to

follow

carefully

the

instructions

below

when

servicing,

WARNING!

!

WHEN

SERVICING,

DO

NOT

APPROACH

THE

LASER

EXIT

WITH

THE

EYE

TOO

CLOSELY.

IN

CASE

IT

1S

NECESSARY

TO

CONFIRM

LASER

BEAM

EMISSION,

BE

SURE

TO

OBSERVE

FROM

A

DISTANCE

OF

MORE

THAN

30cm

FROM

THE

SURFACE

OF

THE

OBJECTIVE

LENS

ON

THE

OPTICAL

PICK-UP

BLOCK.

CAUTION

Use

of

controls

or

adjustments

or

performance

of

proce-

dures

other

than

those

specified

herein

may

result

in

haz-

ardous

radiation

exposure.

ATTENTION

L'utilisation

de

commandes,

réglages

ou

procédures

autres

que

ceux

spécifiés

peut

entrainer

une

dangereuse

exposi-

tion

aux

radiations,

“Varoitus!

Suojakoteloa

ei

saa

avata.

Laite

sisaltaa

laser-

diodin,

joka

lahettaa

nakymaténta

silmille

vaarallista

las-

ersateilya.”

DISASSEMBLY

INSTRUCTIONS

|,

“Tray’

Remova!

1)

Remove

the

“

Cabinet,

Steel”,

2)@For

AUTOMATIC

operation

Press

the

OPEN/CLOSE

button

to

eject

the

“Tray”.

e@For

MANUAL

operation

Insert

a

flat-head

screwdriver

into

the

hole

at

the

bottom

of

the

set

and

turn

the

cam

in

the

direction

of

the

arrow

to

eject

the

“Tray”.

(See

Figure-1)

3)

Remove

“MAIN

C.B”

and

loosen

2

screws

and

pull

out

the

“Tray”

toward

you,

(See

Figure-2)

DURING

SERVICING

This

Compact

Disc

playeris

classified

as

aCLASS

1

LASER

product.

The

CLASS

1

LASER

PRODUCT

Iabelis

located

on

the

rear

exterior.

CLASS-1

LASER-PRODUCT

ADVARSEL!

Usynlig

laserstraling

ved

Abning,

nar

sikkerhedsaforydere

er

ude

af

funktion.

Undga

udsaettelse

for

straling.

“Denna

apparat

innehaller

laserkomponent

som

avger

laserstralning

som

éverskrider

gransen

fér

laserklass

1.”

«

e

b

2,

CD

Mechanism

Removal

1)

Remove

4

screws

®

and

remove

“MAIN

C.

B".

2)

Loosen

2

screws

®,

remove

3

screws

©

and

remove

“CD

Mechanism’,

(See

Figure-2)

Main

C.B

i)

Mechanism

Pig,

-2

ELECTRICAL

MAIN

PARTS

LIST

REF.

NO.

PART

NO.

Soe,

{[C===

87-001-184-01

87-020-794-01

87-020-795-01

87-001-888-01

89-VX5-615-0

87-001-561-0

87-001-196-0

87-001-132-0

87-001~173-01

87-027-895-01

87-020-619-01

87-020-758-01

87-027-986-019

87-020-881-019

87-001-169-010

87-001-865-010

panera

unr

Goaere

wowowcw§

wed;

2S

oo°oce

===TRANS

|

STOR===

89-110-154-01

89-112-964-01

89-213-702-01

89-318-155-01

89-318-154-0

89-320-011-

89-420-61

87-026-21

9

19

9

19

0

2-0

6-0

1-01

8-01

===D|ODE===

87-027-376-019

87-027-975-019

87-001-559-019

87-020-110-019

87-027-451-019

87-001-566-019

87-027-332-019

DESCRIPT1ON

IC,

CXA1081S

IC,

CXA1082BQ

1C,

CXD1135

IC,

CXK5816PN-12L

1C,

CXP5058H-554Q

IC,

HD74HCO2PC(Y)

»

ICPNIO

IC,

(CPN38

IC,

LA6510

IC,

M5218L

IC,

M5238L

IC,

NJM2068SD(Y)

IC,

NJM4560SA

1C,

NJM78L05A

1C,

STA341M

IC,

TDA1543A

TRANSISTOR,

2SA1015Y

TRANSISTOR,

2SA1296Y

TRANS

|

STOR,

2SB1370E

TRANS

|

STOR,

2SC1815GR

TRANSISTOR,

2SC1815Y

TRANSISTOR,

2SC2001K

TRANSISTOR,

2SD2061E

TRANSISTOR,

DTA124ES

TRANS{

STOR,

DTC124ES

TRANSISTOR,

DTC144ES

DIODE

1B4B41

DIODE

1S1588

DIODE

1SS131

DIODE

1SS177

DIODE,

ZENER

HZ27-2L

DIODE,

ZENER

HZ2B-1

DIODE,

ZENER

HZ6BiL

===MAIN

CIRCUIT

BOARD

SECTION===

*87-010-262-019

*87-015-997-019

*87-018-

134-019

*87-010-384-019

*87-010-247-019

*87-010-405-019

*87-010-382-019

*87-018-

131-019

*87~-018-131-019

*87-018-205-019

*87-010-405-019

*87-014-039-019

*87-010-263-019

*87-018-

134-019

*87-018-

134-019

*87-018-131-019

*87-018-

131-019

*87-018-209-019

*B7-010-248-019

*87-018-209-019

*87-018-

131-019

*87-010-374-019

CAP,

ELECT

3300-16V

SME

CAP,

ELECT

2200-16V

SME

CAP,

CERA-SOL

U

0.01-16

Y

CAP,

ELECT

100-25V

SME

CAP,

ELECT

100-25V

SME

CAP,

ELECT

100-50V

SME

CAP,

ELECT

10-50V

SME

CAP,

ELECT

22-25V

SME

CAP,

ELECT

22-25V

SME

CAP,

CERA-SOL

U

1000P-50

B

CAP,

CERA~SOL

U

1000P-50

B

CAP,

CERA-SOL

U

0.

022-25

FCY)

-CAP,

CERA-SOL

U

0.

022-25

F(Y)

CAP,

ELECT

10-50V

SME

CAP,

ELECT

10-50V

SME

CAP,

PP

180P-100

J

CAP,

PP

180P-100

J

CAP,

ELECT

100-10V

CAP,

ELECT

100-10V

CAP,

CERA-SOL

U

0.01-16

Y

CAP,

CERA-SOL

U

0.01-16

Y

CAP,

CERA-SOL

U

1000P-50

B

CAP,

CERA-SOL

U

1000P-50

B

CAP,

CERA-SOL

U

0.

1-50

F

CAP,

ELECT

220-10V

SME

CAP,

CERA-SOL

U

0.

1-50

FCY)

CAP,

CERA-SOL

U

1000P-50

B

CAP,

ELECT

47-10V

REF.

NO.

PART

NO,

*87-010-374-019

*87-018-134-019

*87-018-

134-019

*87-010-374-019

*87-010-404-019

*87-018-127-019

*87-018-134-019

*87-018-209-019

*87-018-131-01

*87-018-119-01

*87-010-545-019

*87-018-097-019

*87-018-209-019

*87-018-149-019

*87-018-

150-

019

9

*87-0

8-134-

*87-018-209-019

*B7-018-132-019

*87-018-134-019

*B7-018-205-019

*87-010-404-019

*87-010-545-019

*B7-010-404-019

*87-010-401-019

*87-010-404-019

*87-018-133-019

*87-010-382-019

*87-010-263-019

*87-018-205-019

*87-018-209-019

*B7-018-209-019

*87-018-209-019

*8T-018-132-019

*87-010-374-019

487-010-263-019

*87-010-793-019

*87-015-684-019

*87-010-263-019

*87-010-374-019

*87-018-209-019

*87-001-835-019

DESCRIPTION

CAP,

ELECT

47-10V

CAP,

CERA-SOL

U

0.

01-16

Y

CAP,

CERA-SOL

U

0.01-16

Y

CAP,

ELECT

47-10V

CAP,

ELECT

4.

7-50V

SME

CAP,

CERA-SOL

U

470P-5

CAP,

CERA-SOL

U

470P-5

CAP,

CERA-SOL

U

470P-5

0

CAP,

CERA-SOL

U

470P-50

CAP,

CERA-SOL

U

470P-50

CAP,

CERA-SOL

U

0,

01-16

CAP,

CERA-SOL

U

0.

1-50

F

CAP,

CERA-SOL

U

1000P-50

B

CAP,

CERA-SOL

U

100P-50

B

CAP,

CERA-SOL

U

100P-50

B

CAP,

CERA-SOL

U

1000P-50

8

CAP,

ELECT

0.

22-50V

SMECY)

CAP,

CERA-SOL

2.

2P(Y)

<~ww

aww

CAP,

CERA-SOL

U

0.

1-50

F(Y)

CAP,

CERA-SOL

U

15P-50

CH(Y)

CAP,

CERA-SOL

U

18P-50

CH(Y)

CAP,

CERA-SOL

U

1000P-50

B(Y)

CAP,

CERA-SOL

U

39P-50

SL(Y)

CAP,

CERA-SOL

U

27P-50

SL(Y)

CAP,

CERA-SOL

U

0.

01-16

YCY)

CAP,

ELECT

47-10V(Y)

CAP,

CERA-SOL

U

1000P-50

BCY)

CAP,

CERA~SOL

U

0.

1-50

FCY)

CAP,

CERA-SOL

U

0.

1-50

F(Y)

CAP,

CERA-SOL

U

100P-50

B(Y)

CAP,

ELECT

47-10V

CAP,

CERA-SOL

U

0.01-16

Y

CAP,

CERA-SOL

U

39P-50

SL(Y)

CAP,

CERA-SOL

U

33P(YK)

CAP,

CERA-SOL

U

27P-50

SL(Y)

CAP,

CERA-SOL

U

33P(YK)

CAP,

ELECT

0.

47-50V

SME

CAP,

CERA-SOL

U

0.

01-16

Y

CAP,

CERA-SOL

U

10P

CAP,

CERA-SOL

U

10P

CAP,

CERA-SOL

U

0,

1-50

F

CAP,

CERA-SOL

U

2200P-16

X

CAP,

CERA-SOL

U

0.01-16

Y

CAP,

CERA-SOL

U

0.

022-25

F

CAP,

ELECT

4.

7-50V

SME

CAP,

ELECT

0.

22-50V

SME

CAP,

ELECT

4.

7-50V

SME

CAP,

ELECT

1-50V

SME

CAP,

ELECT

4.

7-50V

SME

CAP,

CERA~SOL

U

4700P-16

X

CAP,

ELECT

22-25V

SME

CAP,

ELECT

100-10V

CAP,

ELECT

100-10V

CAP,

CERA~SOL

U

0.

022-25

F

CAP,

CERA-SOL

U

0.

1-50

F

CAP,

CERA-SOL

U

0.

1-50

F

CAP,

CERA-SOL

U

0.

1-50

F

CAP,

CERA-SOL

U

2200P-16

X

CAP,

ELECT

47-10V

CAP,

ELECT

100-10V

CAP,

ELECT

BP

0.

47-50V

SRA

CAP,

ELECT

47-25V

CAP,

ELECT

47-25V

CAP,

ELECT

100-10V

CAP,

ELECT

47-10V

CAP,

CERA-SOL

U

0.

1-50

F

CAP,

CERA-SOL

U

0.

1-50

F

VARI

-CAP,

KV-1560(Y)

REF.

NO.

PART

NO

EMI}

=

*87-008-372-019

EMI2

*87-008-372-019

EMi3

*87-008-372-019

EMI1101

*87-008-372-019

EMI

102

*87-008-372-019

EM1103

*87-008-372-019

FL51

=

*89-VX5-616-010

AFR2

87-029-124-019

L101

*87-005-406-019

L102

*87-005-406-019

L103

*87-003-147-019

1201

*87-003-147-019

L301

*87-003-147-019

L302

*81-692-626-019

1351

*87-003-147-019

L451

*87-003-147-019

R352

*87-025-426-019

R353

*87-025-426-019

SFR301

*87-024-169-019

DESCRIPTION

FILTER

EMI

BL

O}RNI

FILTER

EMI

BL

OIRNI

FILTER

EM!

BL

OIRNI

FILTER

EM!

BL

OIRNI

FILTER

EM!

BL

OIRNI

FILTER

EMI

BL

OIRNI

FL,

9-BT-65G(DI

SPLAY)

RES,

FUSE

2.

2-1/4W

COIL

CHOKE

S60UH

COIL

CHOKE

560UH

COIL

CHOKE

22UH

COIL

CHOKE

22UH

COIL

CHOKE

22UH(Y)

COIL

CHOKE

YCOCY)

COIL

CHOKE

22UH(Y)

COIL

CHOKE

22UH

RES,

MF

22K-1/6W

F

RES,

MF

22K-1/6W

F

REF.

NO.

PART

NO.

SW513

87-036-142-019

SW514-

87-036-142-019

SW515

—

87-036-142-019

SW516

—

87-036-142-019

SW517

—

87-036-

142-019

SW518

—

87-036-142-019

SW519

=

87-036-142-019

SW520

=

87-036-142-019

SW521

87-036-142-019

SW522

—

87-036-

142-019

SW523

87-036-142-019

SW524

—-

87-036-142-019

===SWITCH

CIRCUIT

BOARD

SECTION===

SW551

87-036-087-019

SW552

87-036-142-019

MOTOR-1

CIRCUIT

BOARD

SECTION===

DESCRIPTION

TACT

SW(PLAY/REPLAY)

TACT

SW(DDI/P>

)

TACT

SW(2)

TACT

SW(7)

TACT

SW(REPEAT/BLANK)

TACT

SW(PAUSE)

TACT

SW(

44/4)

TACT

SW(1)

TACT

SW(6)

TACT

SW(DISPLAY)

TACT

SW(STOP/CLEAR)

TACT

SW(OPEN/CLOSE

)

SLIDE

SW(TIMER)

TACT

SW(POWER)

SFR,

2.

2K(Y)

XXPCB-D

91-625-848-119

MOTOR

1

C.

BCRF-310T-11400)

SFR401

*87-024-173-019

SFR,

22K

XXPCB-D

91-628-263-119

MOTOR

1

C.

B(MDN-4RA3NTAS/4RA3ETA)

KM

9X-264-077-019

MOTOR

GEAR

ASSY(SLED)

SFR402

*87-024-173-019

SFR,

22K

(RF-310T-

11400)

SFR403

*87-024-168-019

SFR,

1K

SFR451

*87-024-173-019

SFR,

22K

KM

9X-264-134-419

MOTOR

GEAR

ASSY(SLED)(DN-4RA3ETA)

SFR452

*87-024-173-019

SFR,

22K

KM2

9X-264-133-719

MOTOR

ASSY(W/CHASS(S,

T,

T

(SPINDLE)

151

*89-VX5-627-019

TC301

*87-011-224-019

X201

*87-008-394-019

X301

*89-VX5-623-019

X351

-*84-719-610-019

TRANSFORMER

FL

CAP,

TRIMMER

30P(Y)

CERAMIC

CST

4.

19MGW

CRYSTAL

15.

2MHZ(Y)

CRYSTAL

8.

4672MHZ

===FRONT

CIRCUIT

BOARD

SECTION===

SW501

87-036-142-019

SW502

—

87-036-142-019

TACT

SW(5)

TACT

SW(0)

3KM2

9X-264-134-819

SWI

91-570-822-219

===MOTOR-2

CIRCUIT

BOARD

SECTION===

M3

9X-264-133-619

===M1

SCELLANEQUS===

(RF-310T-11400)

MOTOR

ASSY(W/CHASSIS,

T.T)

(SPINDLE)

(MDN-4RA3NTAS)

LEAF

SWCiNSIDE

LIMIT)

MOTOR

ASSY(LOADING)

SW503

©

87-036-142-019

TACT

SW(+10)

98-848-046-519

PICK

UP

KSS-150A(H)(RP)

SW504

87-036-142-019

TACT

SW(RANDOM)

*B9-VT5-202-010

BUSHING,

CORD

89-VX5-618-010

FLAT

CABLE

11P

SW505

87-036-142-019

TACT

SW(4)

SW2

91-571-312-119

LEAF

SW(OPEN/CLOSE)

SW506

—

87-036-142-019

TACT

SW(9)

SW507

87-036-142-019

TACT

SW(DELETE)

Caution

SW508

©

87-036-142-019

TACT

SW(AUTO)

Two

Types

of

the

spindle

(DISC)

motor

and

sled

motor

are

used,

but

they

are

not

compatible

Check

the

part

numbers

(MDN

+*++,

RF

+++*)

on

the

labels

of

motors

and

replace

motors

with

the

same

one.

SW509

©

87-036-142-019

TACT

SW(CONT)

SW510

=

87-036-142-019

TACT

SW(3)

SW511

=

87-036-142-019

TACT

SW(8)

SW512

©

87-036-142-019

TACT

SW(PROGRAM/CHECK

)

Precaution

to

replace

Optical

block

(KSS

—

150A)

Body

or

clothes

electrostatic

potential

could

ruin

laser

diode

in

the

optical

block.

Be

sure

PICK

—-

UP

Assy

P.C.B.

CD

PIiK

—

UP

Assy

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ground

body

and

workbench,

and

use

care

the

4

Zn

LEY

1

2

clothes

do

not

touch

the

diode.

y

%

Y

OA

Comm

OE.

1)

After

the

connection,

remove

solder

shown

in

figure

below.

WAVE

FORM

VOLTAGE

Base

voltage

of

voltage

regulator

transistor

4,

BY

}

Regulated

power

4,

8Y

supply

voltage

5.

OV

Microcomputer

power

supply

:

100mS

P-CONT

INPUT

ON

5.

5V

OFF(STANDBY)

-0.

2V

P-OFF

OUTPUT

ON

ov

OFF(STANDBY)

4,

8V

P-OFF

(DISPLAY

ON/OFF)

ON

4.

OV

OFF

-32V

ECB

29A1015

25A1296

29€1815

25€2001

SCHEMATIC

DIAGRAM

POINT

VOLTAGE,

WAVEFORM

RF

signal

level

Vp-p

should

be

approx.

1.

5V,

when

playing

TRACK

2

of

YEDS-18,

VCO

input

Normal

ly

4y

demultiplied

output

| |

appears

at

CXD1135Q

0

@

pin,

VCO

LPF

OUT

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play

mode

this

voltage

moves

with

in

0

+

0.5V

DC.

DAC

I/V

OUT

OdB

test

disc:

1.

6V

1,

45V(Min)~2,

15V(Max)(

tolerance)

EMP,

H-EMP

ON

3,

6V

OFF

-5.

6V

AUDIO

MUTE

ON

4,2¥

OFF

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ee

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DTC144

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/

Druck

3

ADJUSTMENT

[AJMAIN

C.B

(PATTERN

SIDE)

Note:

Connect

probe(10:1)

of

frequency

counter

and

oscilloscope

to

test

point.

(Normal

Speed

VCO

Frequency

Adjustment

Open

the

tray

by

pressing

the

OPEN/CLOSE

button.

Short

between

test

points

TP6

(ASY)

and

TP4

(GND)

using

a

short

lead

wire.

Connect

the

frequency

counter

to

TP!

(VCO)

and

TP2

(GND).

Adjust

SFR403(VCO)

so

that

the

frequency

counter

reading

is

4.10

+

0.02

MHz.

After

this

adjustment,

remove

the

short

lead

wire

from

TP6

(ASY)

and

TP4

(GND).

@

Offset

Voltage

Adjustment

PS

ee

is

Connect

a

voltmeter

to

TP3

(PLLV)

and

TP4

(GND).

Turn

the

power

switch

on.

Open

the

tray

by

pressing

the

OPEN/CLOSE

button.

Short

between

test

points

TP6

(ASY)

and

TP4

(GND)

using

a

short

lead

wire.

Also,

short

TP5

(H-SPD)

and

TP4

(GND).

13

VIDE-V04661

/

Druck

4

OY

Oe

TPI3

SFR452

Eb)

©

SFR301

5.

Adjust

SFR301

so

that

the

voltages

at

TP3

(PLLV)

and

TP4

(GND)

are

0

+

0.05

V.

6.

After

this

adjustment,

remove

the

short

lead

wire

from

TP6

(ASY)

and

TPS

(H-SPD).

@

High

Speed

VCO

Frequency

Adjustment

(Y

model

only)

1,

Put

the

unit

in

high

speed

mode

by

turning

the

power

on

while

pressing

the

RANDOM

and

REPEAT/BLANK

buttons.

2.

Open

the

tray

by

pressing

the

OPEN/CLOSE

button.

3.

Short

between

test

points

TP6

(ASY)

and

TP4

(GND)

using

a

short

lead

wire.

Also,

short

TP5

(H-SPD)

and

TP4

(GND).

4.

Connect

the

frequency

counter

to

TP!

(VCO)

and

TP2

(GND).

5.

Adjust

TC301

so

that

the

frequency

counter

reading

is

7.82

+

0,005

MHz.

If

this

specified

value

is

not

met,

readjust

using

L302,

6.

Turn

the

power

off,

7.

Check

that

the

frequency

in

the

normal

speed

adjustment

is

correct.

8.

After

this

adjustment,

remove

the

short

lead

wire

from

TP6

(ASY)

and

TPS

(H-SPD).

@

Focus

Bias

Adjustment

Make

the

focus

bias

adjustment

when

replacing

and

repairing

the

optical

block.

Oscilloscope

(DC

range)

MAIN

C.B

——

TP7(RF)o

TP8(GND)o

1.

Connect

the

oscilloscope

to

TP7(RF),

TP8(GND).

2.

Turn

on

the

power

switch.

3.

Insert

the

disc

YEDS-18

(YEDS-1)

and

play

back

the

second

track.

4,

Adjust

SFR452(F.B)

to

make

clear

and

maximize

the

waveform,

diamond

shapes

(<>)

can

be

distinguished

in

the

center

of

the

waveform.

RF

signal

waveform

\X

RETR

\

KR

CHER

RY

\)

\

AY

XXX

,9.9.4,9.0:0

OOXXX)

YX

MAX,

VOLT/DIV

:

20mV

TIME/DIV

:

0.5

usec

®

RF

Waveform

Check

This

check

should

be

performed

whenever

the

optical

system

block

is

replaced.

1.

Connect

the

oscilloscope

to

TP7

(RF)

and

TP8

(GND).

2.

Turn

the

power

switch

on.

3.

Insert

the

disc

YEDS-18

(YEDS-1)

and

play

back

the

data

on

the

second

track.

4.

Adjust

SFR

on

the

pickup

board

so

that

a

waveform

appears

in

the

oscilloscope

as

shown

in

the

figure

below.

RF

signal

waveform

NAY

6.0,0505050.0,0'0°05050.7

OOOO

KY

WY

OO

OOCN

a

X

1.4

+

0.3

Vp-p

C

KXAN

Ov

VOLT/DIV:

20

mV

TIME/DIV:

O.5usec

Note:

The

current

of

the

laser

signal

can

be

checked

by

checking

the

voltage

across

R458(10Q).

The

specified

current

value

is

shown

on

the

label

of

the

pickup.

The

difference

should

be

+

6.0

mA.

KSS-150A

15Y98

46.4

mA

K464

Voltage

across

R458

Laser

current

lop

=

:

102

14

@©

Tracking

Balance

Adjustment

Oscilloscope

(DC

range)

MAIN

C.B

fs

TPII(T

IN)o

TPLO(GND)©O

—_

.

Connect

the

oscilloscope

to

TP11(T

IN),

TP1O(GND).

Connect

a

center

of

SFR401(TE)

to

ground.

.

Turn

on

the

power

switch.

.

Insert

disc

YEDS-18

(YEDS-1)

and

press

the

[>PLAY

but

ton.

5.

Adjust

SFR451(TB)

so

that

the

waveform

on

the

oscilloscope

is

vertically

symmetrical

as

shown

in

the

figure

below.

i)

.

mm

oF

A

0

+

20mV,

A=

8B

B

VOLT/DIV

:

20mV

TIME/DIV

:

2msec

6.

After

adjustment

is

completed,

remove

the

ground

lead

wire.

Focus/Tracking

Gain

Adjustment

A

frequency

responese

analyzer

is

necessary

ip

order

to

perform

this

adjustment

exactly.

However,

this

gain

has

a

margin,

so

even

if

it

is

Slightly

off,

there

is

no

problem

Therfore,

do

not

perform

this

adjustment.

Focus/tracking

gain

detemines

the

pick-up

follow-up

(vertical

and

horizontal)

relative

mechanical

noise

and

mechanical

shock

when

2-axis

device

operate.

However,

as

these

reciprocate,

the

adjustment

is

at

the

point

where

both

are

satisfied.

@

When

gain

is

raised,

the

noise

when

the

2-axis

device

operates

increases.

@

When

gain

is

lowered,

it

is

more

susceptible

to

mechanical

shock

and

skipping

occurs

more

easily.

@

When

gain

adjustment

is

off,

the

symptoms

below

appear.

VIDE-V04661

/

Druck

5

Symptoms

@

The

time

until

music

starts

becomes

longer

for

STOP

>>

PLAY

or

automatic

selection

(4,

Dd

buttons

pressed.

)

(Normally

takes about

2

seconds.

)

@

Music

does

not

start

and

disc

continues

to

rotate

for

STOP

—

PPLAY

or

automatic

selection

(I44,

Dy

buttons

pressed.

)

@

Disc

table

opens

shortly

low

or

high

after

STOP

—

DPLAY.

@

Sound

is

interrupted

during

PLAY.

Or

time

counter

display

stops

progressing.

@

More

noise

during

2-axis

device

operation.

The

following

is

a

simple

adjustment

method.

—

Simple

Adjustment

—

Note

:

Since

exact

adjustment

cannot

be

performed,

remember

the

positions

of

the

controls

before

performing

the

adjustment.

If

the

positions

after

the

simple

adjustment

are

only

a

little

different,

return

the

controls

to

the

original

position.

Procefure

:

Osilloscope

(DC

range)

MAIN

C.B

C)

——

TP13(F

OS

=

ae

+

i

|

aa

TP1L(T

IN)O-——7

15

1,

Keep

the

set

horizontal.

If

the

set

is

not

horizontal,

this

adjustment

cannot

be

performed

due

to

the

gravity

against

the

2-axis

device.

2.

Insert

a

disc

YEDS-18

(YEDS-1)

and

play

back

the

second

track.

3.

Connect

an

oscilloscope

to

Main

circuit

board

TP13(F

IN)

4,

Adjustment

SFR402

(FE)

so

that

the

waveform

is

as

shown

in

the

figure

below.

(focus

gain

adjustment)

asta

al

rf

a

tl

‘

Iii

SB

Rs

|e

VOLT/DIV

:

10mV

TIME/DIV

:

2mS

@

Incorrest

Examples

(DC

level

changes

more

than

on-adjusted

waveform)

low

focus

gain

VOLT/DIV

:

10mV

TIME/DIV

:

2mS

high

focus

gain

UPPEV

ET

TT

TATE

LUT

a

il

Lad

LAA

VOLT/DIV

:

10mV

TIME/DIV

:

2mS

5.

Connect

oscilloscope

to

Main

circuit

board

TP11(T

IN)

6.

Adjust

SFR401

(TE)

so

that

the

waveform

is

as

shown

in

the

figure

below.

(tracking

gain

adjustment)

ov

VOLT/DIV

:

50mV

TIME/DIV

:

2mS

WAVE

FORM

@

Incorrect

Example

(fundamental

wave

appears)

CXD1135

0.

2V/DIV

WOCK

5y

2uS/D1V

low

tracking

gain

1C351,@

£=88.

2kHz

OV

IC351

TPL

0.

2V/DIV

@

vco

i

0.2uS/DIV

VOLT/DIV

:

50mV

f=4.0

MHz

TIME/DIV

:

2ns

0

pees

eanens

wave

than

for low

gain)

1C451,

TP7(RF)

®

1,

7V

CY

a

\

EAR

ae

0

reece

OV

20mV/DIV

0.54S/DIV

1C451

FE

®

VOLT/DIV

:

50nV

0

sen

lai

un

en

15mV

x

10

TIME/DIV

:

2mS

20mV/DIV

2mS/DIV

1C451

TE

@

0

50mV/DIV

1mS/DIV

TP13(F

IN)

@®

(at

FOCUS

SEARCH)

a——,

&1,5(V)

eae

eres

PRACTICAL

SERVICE

FIGURE

Output

level

:

1.4+0.2V

(TR

—

2,1kHz)

Distortion

:

Less

than

0.06

%

0

+

2dB

(20Hz,100Hz,10kHz,20kHz)

Frequency

response

:

(TR

—

3,4,5,6)

16

IC

DESCRIPTION

For

the

description

of

pins

as

shown

below,

see

the

manual

of

the

XC-002.

|

DX-D91

XC-002

IC,

CXA1082S

IC,

CXA1081S

|

®

|

IC,

CXA1082BQ

|

@

|

IC,

CXA1081S

IC,

CXP5058H-554Q

(70

T=5FD

High

when

emphasis

is

on

and

in

high-speed

mode.

Display

segment

output.

Reserved,

Display

grid

scan

output.

Sub-code

SO

+

$1

input

interrupt

at

the

leading

edge.

Connected

to

the

ceramic

oscillator.

4.19

MHz

Power

input

terminal.

Connected

to

+B.

17

VIDE-V046611

/

Druck

6

KEY

input

1/0

|

=

|

Connected

to

GND.

PNG

|

teres

OOCSC—SCSCS

SYNC

Sync.

signal

to

other

components

input

or

output.

(8-bit

serial)

[Pie

No,

[

Name

[170

___——ideneviptien

SSCS

EOP>-OFF

NC

Ne

Sub-code

Q

read

and

clock

input.

SQCK

Leet!

Pease

ae

ee

reel

|

se

Ee

ae

BL

ed

er

ae

aa

aoe

a

ae

oe

Display

signal

input

for

frame

sync.

lock

status.

pos

|

suBQ

ee

cee

pte

|

SENS

ee

fe

ara

Ea

soreed

ea

|

fae

a

pss

|

pss

|

Be

a

|

es

[esr

[0

|

mteretatnt

SCS

c

Tray

open

detection

switch.

Low

when

the

tray

is

closed.

Indicates

the

status

of

focus.

High

when

in

focus.

SW

CLOSE

P-*S

MODE

LDON

|

o

|

Laser diode

ON/OFF

output.

High

when

the

laser

diode

is

on.

P-OFF

|

O

|

System

ON/OFF

output.

High

when

power

is

off.

P

«§

1

mode:

High

when

peak

search

is

performed

every

recording.

P

+§

2

mode:

Low

when

if

the

disc

has

not

been

changed

and

the

program

has

not

been

revised,

only

the

peak

point

is

played

back.

Ta

P-CONT

System ON/OFF

output

from

other

components.

|

62)

|

RM”

42-bit

serial

remote

control

input.

POE

ae

nN

oe

all

Indicates

random

play

operation.

High

in

random

mode.

(Reserved)

RANDOM

P-*+HOLD

Holds

the

peak

of

input

signal

from

other

components

in

the

peak

search

mode.

High

when

peak

search

mode.

Initial

signal

and

AD

START

pulse

output

to

the

A/D

conversion

circuit.

T=PrRY

PS

a

pe

Meee

ee

Pte

[

woe

[|

eterece

clock

tut

Tor

the

peak

serch

(emerson

erat)

|

ee

ioe

Connected

to

+B.

Power

input

for

FL

tube

display

output.

Connected

to

-B

18

P-OFF

po

|

Low

when

power

is

off.

8/12

High

when

the

play

time

of

the

disc

is

less

than

23

minutes.

a}aja

olo}]~a

2/2

a;,a

Ic,

CXD1135Q

Output

to

switch

the

time

constant

of

the

spindle

motor

output

ee

filter.

|

0

|

Spindle

motor

on/off

control

output.

Ea

Spindle

motor

drive

output.

Coarse

control

in

the

CLV.

S

mde

and

phase

contro!

in

the

CLV.

P

mode,

Spindle

motor

drive

output.

Speed

control

in

the

CLV.

S

mode.

Inputs

an

EFM

signal

from

the

RF

amplifier,

Output

to

control

the

slice

level

of

the

EFM

signal.

The

GF

S

signal

is

sampled

by

the

WFCK/16.

When

the

CFS

signal

is

“H",

this

outputs

“H”,

and

when

the

signal

is

“L”

8

times

continuously,

it

outputs

“L”,

[202

asl

fe

VCO

output.

When

this

is

locked

to

the

EFM

signal.

f=8,

6436MH

z

eee

oS

eee

a

Ea

aa

Inputs

a

clock

signal

for

the

serial

data

transfer

fromC

PU.

Latch

input

from

CPU,

Latches

8

bit

shift

register

data

(serial

data

from

CPU)

to

tach

register,

Inputs

serial

data

from

CPU.

System

reset

input.

The

system

is

reset

at

“L”

input.

Tracking

pulse

input.

Outputs

the

internal

state

according

to

the

address.

Muting

input.

When

the

ATTM

in

the

internal

register

is

“L’,

the

system

is

in

the

norma!

state

if

the

MUTG

is

“L”

and

the

sound

is

muted

if

the

MUTG

is

“H’.

19

~

\

Name

SQCK

SQEX

DOTX

in

No.

:

oO

Clock

signal

for

reading

of

sub-code

Q

SQCK

select

input.

Connect

to

VDD.

Digital

Audio

interface

output

(WF

CK

is

output

when

being

off).

(Reserved)

\

©

Qa

fe]

n

XS

(e)

DB8

DB7

DB6

~—

Goes

“H”

when

locked

9

0

Data

of

the

external

RAM.

DATAI

(LSB)

Outputs

the

WRITE

ENABLE

signal

to

the

external

RAM

(active

at

“L"),

SININ

VDD

DB4

oO

ws

~)

X\

ie)

RA1

RA3

RA4

RA6

RA10

RA11

rs)

Alaa

nw

a

>

>)

>|

>

wlo!l~a

on

i)

=

Outputs

the

CHIP

SELECT

signal

to

the

external

RAM

(active

at

“L”).

1/2

division

output

of

the

crystal

oscillator.

f.=4,2336MH

z

(Reserved)

Connect

to

GND.

Crystal

oscillator

input.

f=8,4672MH

z

Crystal

oscillator

output.

f=8.4672MH

z

=

VSss

XTAI

XTAO

MD

1

(Reserved)

Mode

select

input

1

used

at

“H"

Used

in

the

mode with

the

clock

frequency

Mode

select

input

2

used

at

“L’

8.4672MH

z,

Connected

to

GND,

the

digital

output

OF

F,

Mode

select

input

3

used

at

“L”

the

digital

filter

ON

Connected

to

GND.

re)

a

ee

>

2)

34]

~

MD

3

Input

to

switch

the

code

of

the

audio

data

output.

“L”

causes

the

2

second

complement

output

and

“H”

causes

the

offset

binary

output.

Connected

to

GND.

SLOB

Input

to

switch

the

mode

of

the

audio

data

output.

“L”

causes

serial

output

and

“H”

causes

parallel

output.

Connected

to

CND.

PSSL

20

2a

De

BNE

Aperture

correction

control

output.

44.

1kHz

with-the

filter

OF

F.

(Reserved)

Aperture

correction

control

output.

44,

1kHz

with

the

filter

OF

F.

(Reserved)

DA1

(LSB

of

parallel

audio

data)

output

with

PSSL="H”.

C1F1

output

with

PSSL=

“L”.

(Reserved)

DA2

output

with

PSSL=

“H”’,

C1F2

output

with

PSSL=

“L”,

(Reserved)

DA

3

output

with

PSSL=

“H’,

C2F1

output

with

PSSL=

“L”,

(Reserved)

DA4

output

with

PSSL=

“H”.

C2F2

output

with

PSSL=

“L”.

(Reserved)

DA5

output

with

PSSL=

“H’,

C2FL

output

with

PSSL=

“L”,

(Reserved)

DA6

output

with

PSSL=

“H’,

C2PO

output

with

PSSL=

“L”.

(Reserved)

DAT

output

with

PSSL=

“H”,

RFCK

output

with

PSSL=

“L",

(Reserved)

DA8

output

with

PSSL=

“H’,

WFCK

output

with

PSSL=

“L”,

(Reserved)

DA9

output

with

PSSL=

“H”.

PLCK

output

with

PSSL=

“L”,

(Note

1)(Reserved)

DA10

output

with

PSSL=

“H”,

UGFS

output

with

PSSL=

“L”,

(Reserved)

DAI

1

output

with

PSSL=

“H’,

GTOP

output

with

PSSL=

“L”,

(Reserved)

Power

supply

(+5

V)

DA

1

2

output

with

PSSL=

“H’,

RAOV

output

with

PSSL=

“L”,

(Reserved)

DA13

output

with

PSSL=

“H’,

C4LR

output

with

PSSL=

“L”,

(Reserved)

DA14

output

with

PSSL=

“H”,

C210

output

with

PSSL=

“L”.

(Note

2)

DA15

output

with

PSSL=

“H”,

C210

output

with

PSSL=

“L”,

(Reserved)

DA16

(MSB

of

parallel

audio

data)

output

with

PSSL=

“H".

DATA

output

with

PSSL=

“LL”,

(Note3)

Strobe

signal

output.

88.

2kHz

with

the

filter

OF

F.

Strobe

signal

output.

44,

1kH2z

with

the

filter

OF

F.

Note

1)

PLCK:VCO/2

output.

When

locked

to

the

EFM

signal.

f£=4,3218MH

z

Note

2)

C210:

Bit

clock

signal.

f=2,

1168MH

z

Note

3)

DATA:

Audio

signal

serial

data

output

21

KEY

MATRIX

KEY

SWITCH

INPUT

VOLTAGE

QLTAGE

0

~0.33

|

0.82~1.

29

|

1.

78~2,

21

|

2.

69~3,

06

|

3.56~4,

06

(SWI)

(SW2) (SW3) (SW4)

(SW5)

jroo

|

os

|

et

|

|e

|

REPEAT

PROGRAM

FW50

DISPLAY

DELETE

+10

©

|

PSP

|

auawe_|

ce

STOP

PLAY

FW501

PAUSE

AUTO

NDOM

/CLEAR

/REPLAY

jm

|

mo

|

OPEN

F-BWD

FeFWD

FW501

CONT,

evose

|

_/B-sxie

|

/P+SKIP

pom

f=

PEAK

SEARCH

CIRCUIT

@

AD

START

Input

signals

coming

from

@

are

amplified

by

IC651

(1/2)

ani

V

¥

fe

occ

| |

at

the

leading

edge

of

AD

START

@.

When

the

voltage

of

@

0

is

lower

than

that

of

©,

the

output

signals

of

1C651

(2/2)

are

inverted.

The

smaller

the

number

of

WDCK

sighals

input

COMP

pi

Sk

ke

®

SV

to

@

of

1€201

from

the

leading

edge

of

AD

START

to

the

0

|

trailing

edge

of

COMP,

the

greater

the

peak

is

judged

to

be.

are

peak

hold

at

©,

The

voltage

of

@

is

discharged

through

R657

That

point

is

then

recorded.

The

P*HOLD

signals

are

discharjed

whenever

the

voltage

of

the

peak

hold

circuit

is

measured.

eee

A

Sie

ae

.

‘

0

t

@

Sound

signal/

Discharge

when

P-HOLD

is

1”.

Rect

ification

Oe

ees

ee

input

ov

P.

pees

ie

|

cma

ey

ae

|

a

@®

Discharge

TE

22

EXPLODED

VIEW

—

1

|

ver.

|

PART

NO,

DESCRIPTION

87-743-095-41

|

UT:

+3-8

(W/O

SLOT)

(B)

87-067-688-01

|

BVT

T+3-6

87-067-686-01

|

BV

1

T3+2.6-8

87-067-716-01

|

BVT

T+3-6

(B)

87-067-680-01

|

BV

17:8

+3-10

87-571-095-41

|]

VI

T+3-8

87-067-566-01

|

VF

TT

+3-6

MECHANICAL

PARTS

LIST

PART

NO,

REF.

NO,

CHANGED

TO

PART

NO.

*09-057-061-010

%&

89-VW5-005-010

*

89-VW5-212-010

89-VW5-212-019

%&

89-VX5-004-019

*&89-VP5-011-019

%&

87-085-213-019

%

89-VX5-015-019

%

89-VX5-019-019

*

89-VX5-020-019

89-VX5-202-019

%&

89-VX5-010-019

89-VT5-202-010

*

89-VX5-003-019

DESCRIPTION

FRONT

CABINET

ASSY

RING,

FOOT

FELT,

FOOT

(YN,

YJ)

FELT,

FOOT

(YK,

YNE)

HOLDER,

P.C.B

KNOB,

SL

TIMER

BUTTON,

POWER

FOOT,

H12.5

PANEL,

REAR

(YN)

PANEL,

REAR

(YJ)

PANEL,

REAR

(YK,

YNE)

HOLDER,

CENTER

HEAT

SINK

CT

GUIDE,

FL

WIRE

BINDER

PANEL,

TRAY

HOLDER,

MECHANISM

BUSHING,

CORD

FLAT

CABLE

11P

FG

CABINET,

STEEL

CHASSIS,

MAIN

23

COMMON

MODEL

Q'ty

et

es

ae

peso

—|Nnn

—

bh

eh

emt

ak

EXPLODED

VIEW

—

2

REF,

NO.

PART

NO,

DESCRIPTION

97-685-862-01

|

BVT

T+2.6-6

92-642-142-01

97-685-132-19

97-685-135-19

97-685-851-01

BVTT+2~-4

93-558-708-21

94-812-554-00

97-621-775-00

97-621-255-25

97~685-647-79

STOPPER

WASHER

B+2.6-3

PTT+2-4

B+3-10

$2-642-172-01

97-685-143-19

SPACER

PTPWH+2-8

24

PART

NO.

CHANGED

TO

REF,

NO.

hore

tech.

On

mem

wh

—

~

—oOocmen~

DD

oOo

PART

NO.

%#92-642-170-010

%92-642-164-010

%

92-642-

160-010

%92-642-137-010

%92-642-139-010

%92-642-158-010

me

9X-264-210-510

%

92-642-159-010

#92-642-169-010

#92-642-147-010

%92-642-162-020

%92-642-146-010

*92-642-154-020

93-653-387-000

#94-913-731-010

4%

92-642-148-010

%

92-642-149-010

91-452-507-110

%92-642-165-010

*&

92-642-432-010

%&

92-642-161-010

91-571-312-110

9X-264-210-610

%

92-642-512-010

%92-642-510-010

%

92-642-153-010

#92-642-157-030

%

92-642-511-010

#92-642-173-010

&

92-642-133-020

%

9X-264-210-710

9X-264-133-610

*91-624-793-210

*%91-564-721-110

#92-642-156-010

%

92-642-125-010

DESCRIPTION

COMMON

MODEL

HOLDER,

HING

SPRING,

HING

SHAFT,

SPRING

T

SPRING,

COIL

B

SPRING,

COIL

A

FOOT

C

SPRING

SUB

CHASS!IS

ASSY

PLATE,

SPRING

T

ROLLER

GUIDE,

TRAY

L

HOLDER,

TRAY

GUIDE,

TRAY

R

GEAR,

SPRING

DRIVE

PULLEY,

ROADING

GEAR,

SPRING

RELAY

COVER,

SPRING

GEAR

MAGNET

ASSY

CHUCK

CHASSIS

CHUCKING

PULLEY

HOLDER,

FRONT

TRAY

LEAF

SWITCH

(OPEN/CLOSE)

SPRING

MAIN

CHASSIS

ASSY

MD

HOLDER

BOSS

REAR

MD

HOLDER

BOSS

CAM,

SPRING

CONTROL

TAPE,

FRONT

MD

HOLDER

BOSS

L

PLATE,

RING

BOSS

STOPPER

RING ASSY

MOTOR

ASSY

(LOADING)

CD

MOTOR

2

C.B

CONNECTOR

5P

TRAY

DAMPER

25

aTy

eee

ee

—s

AD

—

os

—

AD

—~

oo

NoMa

—

i

EXPLODED

VIEW

—

3

PART

NO,

CHANGED

T0

REF.

NO,

REF.

NO.

PART

NO,

DESCRIPT1ON

92-642-144-01

97-621-255-35

93-303-809-31

92-641-447-01

PTT+2~6

P+2-5

SPECIAL

SCREW

MI.7-3

STP

+26-8

PART

NO,

%94-910-431-010

98-848-046-510

#92-641-443-010

%92-641-434-010

%92-564-720-110

9X-264-076-910

%&

92-641-403-050

%&

92-641-448-020

9X-264-133-710

9X-264-134-810

*92-641-371-010

%*&91-625-848-110

*&91-628-263-110

9X-264-077-010

9X-264-134-410

91-570-822-210

DESCRIPT!ON

SHAFT,

SLIDE

P'tCK

UP

(KSS-150AHRP)

HOLDER,

SLIDE

COVER,

GEAR

CONNECTOR

GEAR

A

GEAR

B

CLUMP,

SHAFT

SP

MOTOR

ASSY

(W/CHASSIS,

T.T)

(DISC)

(RF-310T-11400)

SP

MOTOR

ASSY

(W/CHASSIS,

T.T)

(DISC)

(MDN-4RA3NTAS

)

STOPPER

CD

MOTOR

i

CD

MOTOR

1

LEAF

SW!

TCH

(LIMIT)

Caution

C.B

(RF-310T-11400)

C.B

(MDN-4RA3NTAS/4RA3ETA)

SLED

MOTOR

GEAR

ASSY

(SLED)

(RF-310T-11400)

SLED

MOTOR

GEAR

ASSY

(SLED)

(MDN-4RA3ETA)

COMMON

Q'TY

MODEL

>

oe

es

—-—

woe

=

ee

ay

Two

types

of

the

spindle

(DISC)

motor

and

sled

motora

re

used,

but

they

are

not

compatible.

Check

the

part

numbers

(MDN

----,

RF

---+)

on

the

lab

Is

of

motors

and

replace

motors

with

the

same

one.

Aiwa DX-D91 User manual

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