NAD 5240 Manuel utilisateur

MANUAL

5220

COMPACT

nian

PLAYERS

NAD

5240/5220

SERVICE

MANUAL

NOTICE:

This

manual

covers

all

versions

North

America

Canada

_E:

Europe

Others

Australia

TABLE

CONTENTS

PAGE

ECIPICA

TIONS

mis

cut

ote

neues

add

Rad

ees

DISASSEMBLY.

INSTRUCTIONS

«Misc

tsat

iol

saianden

(ad

meniyacad

BLOC

DING

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htt

ties

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natess

lence

call

nas

hat

oan

TERMINAL

FUNCTION:

ot.cccsn

cotati

saws

cat

pate

wecme

IIS

TIME

NTS

ite

coc

saree

uted

teas

baat

ahah

pee

eats

ate

ELECTRICAL

PARTS

LOCATIONS

AND

WIRING

DIAGRAM...........-5:

SCHEMATIC

DIAGRAM:

6is

cucu

panl

wet

tees

taiwan

seus

MECHANISM

EXPLODED:

VIEWO

Mache

aeautanwsee

eure

acen

ata

wea

CABINET

EXPLODED

VIEW

ce.

scdik

apts Seen

aoe

RNA:

PARTS

LIST.

eset

stone

Vawws

Pale

adele

bea

Veit

Sel

REAR

PANEL

Output

Jacks.

Fixed

Variable

(5240

only)

Line

Cord.

la.

1b.

CAUTION

RISK

ELECTRIC

SHOCK

NOT

OPEN

CAUTION

REDUCE

THE

RISK

ELECTRIC

SHOCK,

NOT

REMOVE

COVER

(OR

BACK)

USER-SERVICEABLE

PARTS

INSIDE

REFER

SERVICING

QUALIFIED

SERVICE

PERSONNEL

FIXED

VARIABLE

OUTPUT OUTPUT

FRONT

PANEL

5220

Front

Panel

Power

On/Off.

Disc

Drawer.

Open/Close.

Play/Pause.

Reset.

Skip

Forward

/Back.

TIMER

PLAY

Scan

Forward/Back.

Disptay

Selector.

Memory.

oPLay

MORTEPEAT

PLAY

Repeat.

CDR

(Controlied

Dynamic

Range;

5240

only).

Status

Indicators.

Timer

Play

(5220

only).

POWER

—_

WNBA

COONAN

ASON=

Compact

Disc

Player

5240

TIME

REMAIN

(Iw

PAUSE

Cc.

O105

OPEN

PLAY

PAUSE

5 8

SPECIFICATIONS

Type:

Quantization:

Channels:

Frequency

response:

Dynamic

range:

Total

harmonic

distortion:

Channel

separation:

Wow

and

flutter:

Output:

Pickup:

Track

search:

Power

consumption:

Dimensions:

Weight:

Compact

Disc

Player

with

optical

pickup

bit

linear

channels

(stereo)

—

kHz

+0.5

0.004%

kHz)

Unmeasu

rable

2.0

Volts

Semiconductor

laser

track

number

Watts

340(W)

57.5(H)

309.5(D)

2.9

DISASSEMBLY

INSTRUCTIONS

TOP

COVER

REMOVAL

Remove

two

screws

from

top

cover

side

boards

and

four

screws

(B)

from

rear

side,

and

the

top

cover

will

removed,

TRAY

PANEL

REMOVAL

Remove

top

cover.

Lift

mechanism

assembly

clamper

lever

and

pull

out

disc

tray

(0)

forward

your

hand.

Release

two

hooks

©)

tray

panel,

and

the

tray

panel

will

removed.

Disc

Tray

%,.

Cam

Gear

Clamper

Lever

Tray

Panel

FRONT

PANEL

REMOVAL

(with

Display

P.C.

Board)

Remove

top

cover

and

tray

panel.

Remove

four

screws

(F)

and

from

both

side

and

three

screws

(H)

from

bottom

side,

and

the

front

panel

will

removed.

)

MECHANISM

ASSEMBLY

REMOVAL

Remove

tray

panel,

Remove

five

screws

and

GQ),

and

two

connectors

and

then

the

mechanism

assembly

will

re-

moved,

Clamper

lever

removal

Push

clamper

lever

hook

arrow

direction

with

minus

driver,

and

the

clamper

lever

will

removed

pulling

it.

hook

broken,

use

screw

with

washer

™)

(63

8mm)

illustrated.

)

DISC

TRAY

REMOVAL

Lift

clamper

lever

with

disc

tray

the

deepest

side

and

‘pull

disc

tray

until

stops.

Pull

disc

tray

with

mechanism

main

chassis

hook

pushed

arrow

(N)

direction,

and

the

disc

tray

will

removed.

Disc

tray

mounting

procedure

mechanism

Insert

disc

tray

with

cam

gear

turned

counter-

clockwise

direction

fully,

and

the

disc

tray

can

mounted,

CAUTIONS

DISC

TRAY

REMOVAL

There

are

two

types

mechanism

chassis,

differing

and

()

shown

Figure

the

first

type

(Figure

B),

the

disc

tray

will

removed

pulling

the

disc

tray

forward.

the

2nd

type,

Figure

hooked

shown

Figure

Two

remove

the

disc

tray

the

2nd

type

push

(Figure

the

arrow

direction.

And

the

disc

tray

will

removed

shown

(Figure

A).

Figure

LASER

PICKUP

REMOVAL

Short-circuit

Laser

Pickup

P.C.

Board

pattern(P).

Remove

six

screws

and

®)

and

two

connectors

(S),

and

the

laser

pickup

will

removed.

(S)

Connectors

CAUTION

LASER

PICKUP

REMOVAL

When

removing

laser

pickup,

solder

and

short-circuit

terminals

protect

laser

pickup

from

damage

which

may

caused

during

the

removal.

Disconnect

leads

from

connector

after

soldering

completed.

not

touch

the

pickup

terminals

with

your

hand.

When

mounting

laser

pickup,

connect

the

leads

connector

before

unsoldering

the

solder

used

short-circuit.

CAUTIONS

LASER

PICKUP

REPLACEMENT

When

mounting

new

laser

pickup,

first

connect

the

leads

connector

and

then

unsolder

the

solder

used

protect

laser

diode

P.C,

Board.

Use

soldering

iron

grounded

(or

leakageless

iron).

Cover

working

bench

with

conductive

mat

grounded.

Before

proceeding

job,

always

touch

the

conductive

mat

ground

lead

with

your

both

hands

discharge

electric

charges

developed

your

body.

Solder

the

pattern

shown

ilustration

before

disconnecting

connector

and

leads.

DISC

TABLE

MOUNTING

Insert

spacer

which

was

packed

with

motor,

between

main

chassis

and

disc

table.

Push

center

disc

table

until

touches

spacer.

Notes:

When

mounting

disc

table,

take

care

disc

table

not

touch

pickup

disc

tray.

Mount

disc

table

parallel

with

main

chassis.

There

are

three

kinds

spacer

jigs

corresponding

the

motor

assemblies

three kinds

pickups.

Check

your

pickup

and

order

the

motor

assembly

you

want.

Disc

Table

Spacer

Jig

Alle

+0.1mm

Main

chassis

(5240)

Beam

Pick

DAC

TD6720N

OUTPUT

AMP

{iF

fia

Circuit

CIRCUIT

eer

NEW

©)

DAC

5240

(S/H

OUT)

Servo

status

Sig’

Det’

Error

Correction

TC92Z0IAF

{

-LD-APC

Circuit

ra4

—-—---

|Phase

Comp}

Correction

Timing

CORRECTION

Generotor

Servo

Status

Signal

Processor

Servo

Control

Signat

Processor

Osta

strobe

{Digital

PLL)

Sync

Sepa’

Subcode

EFM

Demodu’

CLV

Control

Bus

Control

Butter

Sabeoee

PICK-UP

MOTOR

t--74

interface

———

TC9200AF

DISC

MOTOR

2«

8bit

RAM

VARIABLE

VOLUME

out

CXKS8I6M

VARIABLE.

Poti

Micro

MOTOR

post

chip

Micro

Computer

bea

ees

eee

TMP4270N-9401

Display

‘

TMP47C

420AF-8612

(5240)

Remote

Control

Receiver

BXI407

INVYSOVIG

HO01E8

TERMINAL

FUNCTION

TC9154AP

L-

OUT

INI

A-GND

L-IN2

L-OUT

GNO

BIT

SHIFT

REGISTOR

1615

121

109

87654

BIT

LATCH

CIRCUIT

BIT

LATCH

CIRCUIT

BIT

LATCH

CIRCUIT

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