Sony Cdx-r88 User manual

SERVICE

MANUAL

HIDE-AWAY

UNIT

SPECIFICATIONS

AUDIO

POWER

SPECIFICATIONS

POWER

OUTPUT

AND

TOTAL

HARMONIC

DISTORTION

11

watts

per

channel

minimum

continuous

average

power

into

4

ohms,

both

channels

driven

from

30-20,000

Hz

with

no

more

than

1%

total

harmonic

distortion.

OTHER

SPECIFICATIONS

Power

amplifier

section

(inside

of

the

hide-

away

unit)

Outputs

2

Line

outputs

Inputs

Auxiliary

inputs

Maximum

power

output

25

watts

per

channel

at

4

ohms

Bass

+8

dB

(100

kHz)

Treble

+8

dB

(10

kHz)

Tone

controls

CD

player

section

System

system

Laser

Diode

Properties

Material:

GaAlAs

Wavelength:

780

nm

Emission

Duration:

Continuous

Laser

output

power:

Less

than

44.6

p.W*

*This

output

is

the

value

measured

at

a

distance

of

about

200

mm

from

the

objective

lens

surface

on

the

Optical

Pick-up

Block.

MICROFILM

Compact

disc

digital

audio

US

Model

Canadian

Model

AEP

Model

E

Model

CDX-R88:

US

Model

CDX-R66:

Frequency

response

:

5-

20,000

Hz+3

dB

Harmonic

distortion

0.008%

(1

kHz)

Dynamic

range

90

dB

Signal

to

noise

ratio

85

dB

Wow

and

flutter

General

Below

measurable

limit

Power

requirements

Current

drain

12

V

DC

car

battery

(negative

ground)

800

mA

(CD

playback)

2

A

(during

disc

loading

or

eject)

Operating

temperature

Dimensions

Weight

—

10°C-50°C

(15°F

-

120°F)

CD

player:

Approx.

178

x

50

x

144

mm

(w/h/d)

(71%

x

2

x

5%

in.)

Hide-away

unit:

Approx.

178

x

30

x

180

mm

(w/h/d)

(71%

x

11516

x

714

in.)

including

projecting.

parts

and

controls

Approx.

2.5

kg

(5

Ib

8

oz)

incl.

hide-away

unit

—

Continued

on

page

2

—

FM/AM

COMPACT

DISC

PLAYER

SON

Y.

CDX-R88/R66

Tuner

section

(inside

of

the

hide-away

unit)

FM

tuner

section

AM

tuner

section

Tuning

range

{

87.9

—

107.9

MHz

{US,

Canadian

models}

87.5

—

108

MHz

{AEP,

E

models)

§31-

1,620

kHz

(at

9

KHz)

530

-

1,620

kHz

(at

10

kHz;

adjustable

with

the

model

only

for

E

model}

Antenna

terminal

FM/AM

external

antenna

connector

67

dB

(stereo)

intermediate

frequency

J

10.7

MHz

450

KHz

Pern

Usable

sensitivity

{|

11.2

dBf

(1.0

x.V/75

ohms)

Sensitivity

—

28

Vv

bs

|

at

50

dB

quieting

16.4

dBf

(1.8

.V/75

ohms)

Selectivity

75

dB

at

+400

kHz

—

Signal-to-noise

ratio

70-08

(monaural

55

dB

t

Harmonic

distortion

at

1

kHz

0.2%

(monaural)

0.3%

(stereo)

0.3%

Stereo

separation

40

dB

[

Frequency

response

|

20H2-

15,000

Hz

+3.dB

FEATURES

eA

DIN

sized

mobile

CD

player

and

a

hide-away

unit

in

which

FM/AM

tuner,

power

amplifier

ana

power

supply

section

are

combined.

¢

Fader-control

to

adjust

the

volume

of

the

front

and

rear

speaker

for

4-speaker

system.

¢

Auxiliary

inputs

to

connect

an

optional

cassette

car

stereo.

©

Quick

recovery

from

sound

skipping.

Even

if

strong

vibration

may

cause

sound

skipping,

the

player

can

relocate

the

point

where

the

play

was

interrupted.

¢Maximum

power

output

of

25

watts

per

channel.

CAUTION

Use

of

controls

or

adjustments

or

performance

of

procedures

other

than

those

specified

herein

may

result

in

hazardous

radiation

exposure.

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

BY

SHADING

AND

MARK

A

ON

THE

SCHEMATIC

DIAGRAMS

AND

IN

THE

PARTS

LIST

ARE

CRITICAL

TO

SAFE

OPERATION.

REPLACE

THESE

COMPONENTS

WITH

SONY

PARTS

WHOSE

PART

NUMBERS

APPEAR

AS

SHOWN

IN

THIS

MANUAL

OR

IN

SUPPLEMENTS

PUBLISHED

BY

SONY.

ATTENTION

AU

COMPOSANT

AYANT

RAPPORT

A

LA

SECURITE!

LES

COMPOSANTS

IDENTIFIES

PAR

UNE

TRAME

ET

UNE

MARQUE

A

SUR

LES

DIAGRAMMES

SCHE-

MATIQUES

ET

LA

LISTE

DES

PIECES

SONT

CRITIQUES

POUR

LA

SECURITE

DE

FONCTIONNEMENT.

NE

REM-

PLACER

CES

COMPOSANTS

QUE

PAR

DES

PIECES

SONY

DONT

LES

NUMEROS

SONT

DONNES

DANS

CE

MANUEL

OU

DANS

LES

SUPPLEMENTS

PUBLIES

PAR

SONY.

TABLE

OF

CONTENTS

Section

Title

Page

Specifications

.................00000.

1

POatures.

cic

cad

in

ke

oe

wok

he

ate

da

bed

te

e

2

Servicing

Note

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

0000

eee

3

Précautions’

+...

3-086

sce

ce

gm

es

3

Installation

and

Connections.

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

4

Location

and

Function

of

Controls

.........

6

How

to

Set

the

Clock

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

8

Memory

Preset

Tuning..................

9

1.

DISASSEMBLY

]-1.

Removal

...........000

cece

cues

10

2.

ELECTRICAL

ADJUSTMENTS

HIDE-AWAY

SECTION

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

15

FM

Discriminator

Alignment

...........

15

FM

Auto-scan

Stop

Level

Adjustment

.....

16

AM

Auto-scan

Stop

Level

Adjustment

.....

16

FM

Stereo

Separation

Adjustment

........

17

CD

PLAYER

SECTION

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

18

PLL

Free

Run

Frequency

Adjustment

.....

18

Focus

Offset

Adjustment

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

19

Tracking

Offset

Adjustment

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

19

Tracking

Gain

Adjustment

(rough

adjustment)

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

20

Focus

Gain

Adjustment

(rough

adjustment)

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

21

Semiconductor

Lead

Layouts

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

22

3.

DIAGRAMS

3-1.

Mounting

Diagram

—

Hide-away

Section—

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

23

3-2.

Schematic

Diagram

—

Hide-away

Section—

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

26

3-3.

Mounting

Diagram

—

CD

Player

Section—

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

31

3-4.

Schematic

Diagram

—

CD

Player

Section—

..........,..

35

4.

EXPLODED

VIEWS

AND

PARTS

LIST

................,.4.

41

5.

ELECTRICAL

PARTS

LIST........-.

48

Trouble

Checks

.

2...

0600.04

cee

ee

56

SERVICING

NOTES

ON

HANDLING

THE

OPTICAL

PICK-

UP

BLOCK

OR

BASE

UNIT

The

laser

diode

in

the

optical

pick-up

block

may

suffer

electrostatic

breakdown

because

of

the

poten-

tial

difference

generated

by

the

charged

electrostatic

load,

etc.

on

clothing

and

the

human

body.

During

repair,

pay

attention

to

electrostatic

break-

down

and

also

use

the

procedure

in

the

printed

matter

which

is

included

in

the

repair

parts.

The

flexible

board

is

easily

damaged

and

should

be

handled

with

care.

CDX-R88/R66__

Flexible

Circuit

Board

Repairing

1.

Keep

the

temperature

of

the

soldering

iron

at

270°

+

10°C

during

repairing.

You

can

maintain

the

temperature

of

the

soldering

iron

around

270°C

by

using

the

ther-

mal

controller

as

illustrated

on

the

right.

2.

Do

not

touch

the

soldering

iron

more

than

4

seconds

or

3

times

on

the

same

conductor

of

the

circuit

board.

3.

Do

not

apply

force

on

the

conductor

when

soldering

or

unsoldering.

Tip

of

soldering

iron

good

i>

wrong

eo

ams

=

PRECAUTIONS

¢

Before

operating

the

unit

for

the

first

time

or

after

replacing

the

battery,

press

the

reset

button

with

a

pencil,

etc.,

then

start

operating

the

unit.

if

your

car

was

parked

in

direct

sunlight

and

there

was

a

considerable

rise

in

temperature

inside

the

car,

allow

the

unit

to

cool

off

before

operating.

*If

no

power

is

being

supplied

to

the

unit,

check

the

connections

first.

If

everything

is in

order,

check

the

fuse.

*!f

no

sound

comes

from

the

speakers

of

a

2-speaker

system,

set

the

FADER

control

to

the

center

position.

*When

transporting

the

unit,

keep

the

unit

horizontal.

Notes

on

moisture

condensation

On

a

rainy

day

or

in

a

very

damp

area,

moisture

may

condense

on

the

lenses

inside

the

unit.

Should

this

occur,

the

unit

will

not

operate.

In

this

case,

remove

the

disc

and

wait

for

about

an

hour

unti!

the

moisture

evaporates.

NOTES

ON

COMPACT

DISCS

Handle

the

disc

by

its

edge,

and

to

keep

the

disc

clean,

do

not

touch

the

rainbow

colored

surface.

This

way

Do

not

stick

paper

or

tape

on

the

labeled

surface.

Not

this

way

Se

Do

not

expose

the

disc

to

direct

sunlight

or

heat

sources

such

as

hot

air

ducts,

or

leave

it

in

a

car

parked

in

the

direct

sunlight

where

there

can

be

a

considerable

rise

in

the

temperature.

(%

=

WY)

Not

this

way

Before

playing,

clean

the

disc

with

an

optional

cleaning

cloth.

Wipe

the

disc

in

the

direction

of

the

arrows.

Do

not

use

solvents

such

as

benzine,

thinner,

commercially

available

cleaners

or

antistatic

spray

intended

for

analog

discs.

CDX-R88/R66

|

INSTALLATION

AND

CONNECTIONS

|

MOUNTING

HARDWARE

Supplied

with

the

CD

player

CDX-R88

i

£

®

eee

®O

®

®D

yy

&

xf

x2

xt

Supplied

with

the

stereo

cassette

player

XK-8

®

mC)

‘2

®

@5

x

20

O

x4

«4

INSTALLATION

PRECAUTIONS

*

Choose

the

mounting

location

carefully

so

that

the

unit

will

not

interfere

with

the

normal

driving

functions

of

the

driver.

*

Avoid

installing

the

unit

where

it

would

be

subject

to

high

temperatures,

such

as

from

direct

sunlight

or

from

hot

air

from

the

heater,

or

where

it

would

be

subject

to

dust,

dirt

or

excessive

vibration.

¢

Use

only

the

supplied

mounting

hardware

for

a

safe

and

secure

installation.

MOUNTING

EXAMPLE

Installation

in

the

dashboard

Use

the

mounting

hardware

supplied

with

the

CDX-R88/R66

for

mounting

the

CD

player

only

Choose

the

way

‘A!

or

'B

installation

under

the

dashboard

using

the

mounting

hardware

supplied

with

the

CDX-R88/R66.

For

CDX-R88/R66

only

Transit

screw

Be

sure

to

remove

the

transit

screw

from

the

top

of

the

unit.

Retain

the

screw

for

future

transportation

as

illustrated

below.

¥

@

—

Retain

the

S__

screw

here.

os

SSS

Le

Bw

2

TJ

OL

Pa

Screwdriver

For

XK-8

only

Mount

the

XK-8

with

an

angle

less

than

30°

from

the

horizontal

level.

Mounting

exampie

Mounting

angle

adjustment

To

keep

balance

of

the

internal

anti-shock

mechanism,

adjust

the

mounting

angle

of

the

CD

player

according

to

that

of

the

mounting

position.

¢

If

the

mounting

angle

is

less

than

20°

from

the

horizontal,

no

ajustment

is

necessary.

elf

it

is

between

20°

and

40°,

turn

the

selector

(see

illustration)

clockwise

until

it

stops.

7

0°

20°

Mounting

Gj

—20°

40°

angie

selector

KS

Lb,

Mounting

WA

angle

5G

To

return

the

selector

to

the

original

*

position,

turn

it

counterclockwise

while

pressing

it

with

a

screwdriver

Front

speaker

XK-8

of

a

graphic

equatizer

(under

dashboard)

|

CD

player

of

CDX-R88

=,

----——

{in

dashboard)

Sere

=|

Hide-away

unit

of

CDX

R68

(under

seat)

Rear

| |

speaker

Front

speaker

player

XK-8.

Use

the

mounting

hardware

supplied

with

the

stereo

cassette

1

2

CD

player

of

CDX-R88/R66

Bend

these

claws,

if

necessary.

Dashboard

TO

LATCH

THE

PART

@)

CDX

R88

or

aD

COX-R66

(

This

prevents

your

car

stereo

set

from

being

stolen.

Detach

it

when

operating

the

unit.

CORD

ATTACHMENT

Hide-away

unit

of

COX

R88

or

Attach

the

part

©

to

secure

the

unit

Ww

cio

To

remove,

push

in

the

clips

and

pull

it

out.

1

Mark

the

locations

of

the

holes

on

the

bottom

of

the

dashboard

using

th

part

@

as

a

template.

2

Drill

3mm

(1%

in)

bolt

holes.

3

secure

the

pieces

of

part

@)

which

are

broken

off

to

the

bottom

of

the

dishfboard.*

4

Secure

the

unit

to

part

™

*If

the

dashboard

or

the

firewall

is

thin

or

made

of

plastic

or

a

similar

material.

Secuy

the

unit

with

parts

©;

and

(©.

tf

it

is

made

of

metal

plate,

©)

are

not

necessary.

Notes

*

Be

sure

to

use

the

supplied

bolts

(0)

for

mounting

part

@

on

the

unit.

Long,

folts

will

damage

the

unit.

*

Be

careful

not

to

damage

wiring

or

equipment

on

the

other

side

of

the

firera)

I.

—4—

CDX-R88/R66

CONNECTIONS

CONNECTION

DIAGRAM

According

to

the

unit

you

have,

select

the

appropriate

connection

from

the

following

three

CAUTION

examples.

This

unit

is

designed

for

negative

ground

12

V

DC

operation

only.

(Example

1}

A

detailed

diagram

of

this

example

is

shown

below

©

Before

making

connections,

disconnect

the

ground

terminal

of

the

car

battery

to

avoid

short

CDX-R88

or

CDX-REG

circuits.

micas)

*

Connect

the

red

power

input

lead

only

after

all

other

leads

are

connected.

And

be

sure

to

‘Sleraaaaeaane

ir

ideceay

Fraai

connect

it

to

the

Positive

12

V

power

terminal.

It

will

be

energized

when

the

ignition

key

is

player

XK-8,

etc.

CD

player

inate

speaker

set

to

the

accessory

position.

©

Run

all

ground

wires

to

a

common

ground

point.

Feseeniacomn

a

nn

*

Notes

for

the

CD

player

only:

Be

sure

to

press

the

reset

button

after

connection

is

completed.

Graphic

Sub

Notes

on

speaker

connection

Wooler

*

Use

speakers

with

an

impedance

of

4

to

8

ohms,

and

with

adequate

power

handling

*

Combined

with

a

tuner

and

a

power

amplifier

Capacities.

Otherwise,

the

speakers

may

be

damaged.

*

Do

not

connect

the

©

terminals

of

the

speaker

system

to

the

car

chassis,

and

do

not

(Exampie

2)

connect

the

right

speaker

with

that

of

the

left

speaker.

CDX-R88

or

CDX-R66

*Do

not

attempt

to

connect

the

speakers

in

parallel.

Front

On

power

antenna

connection

(for

CD

player

only)

speaker

Connect

the

power

antenna

retay

contro}

jead

to

the

power

antenna

relay

box.

To

raise

the

antenna,

press

the

TUNER

button

of

the

CD

player

to

turn

on

the

radio

or

insert

a

disc.

To

retract

the

antenna,

press

the

TUNER

again

to

turn

the

radio

off

or

press

the

&

button

to

Rear

remove

the

disc.

speaker

Note:

A

power

antenna

without

relay

control

box

cannot

be

used

with

this

unit.

Memory

hold

connection

(for

CD

player

only)

When

the

yellow

power

input

lead

is

connected

as

shown

below,

power

will

be

always

{

i

aaa

supplied

to

the

memory

circuit,

even

when

the

ignition

key

is

switched

off.

Gideawa

CD

player

ae

y

Speaker

Diagram

of

example

4-

or

2-speaker

connection

with

the

CD

player

and

a

cassette

car

stereo

ted

(red,

white

striped):

power

input

jead

yellow:

power

input

lead

Rear

speaker

orange

(orange,

white

striped):

lighting

lead

blue

(blue,

white

striped):

power

amplifier

contro!

lead

black:

ground

wire

gray:

remote

control

lead

Front

speaker

Rear

speaker

CD

player

CDX

R88

or

CDX

REE

ACC

SW

fed,

white

striped

Car

antenna

Power

amplifier

Front

speaker

yellow

to

meta!

point

of

a

car

Hide

away

unit

CDX-R88

or

CDX

REE

orange.

white

striped

L.

PY

Fuse

(1

A)

gO

to

the

lighting

contro!

lead

to

the

®

12

V

power

terminal

orange,

white

striped

which

is

energized

in

the

Fuse

accessory

position

of

the

ignition

key

to

power

antenna

relay

control

box

Fuse

(6.3

A)

1)

Connecting

cord

supplied

with

the

power

amplitier

CDX-R88/R66

LOCATION

AND

FUNCTION

OF

CONTROLS

(1)

BAS

(bass)

control

Slide

towards

+

to

increase

the

bass

response

and

towards

—

to

decrease

it.

(2)

TRE

(treble)

control

Slide

towards

+

to

increase

the

treble

response

and

towards

—

to

decrease

it.

[3]

Dise

insertion

slot

(4]LOCAL

button

and

indicator

{(5]

&

(eject)

button

For

improved

reception

¢

To

receive

a

weak

FM

station,

press

MONO.

(The

indicator

on

the

button

illuminates.)

The

FM

stereo

broadcast

is

received

in

monaural,

but

the

noise

may

be

reduced.

©

To

receive

very

strong

FM/AM

station

or

to

receive

an

AM

station

at

night,

press

LOCAL.

(The

indicator

on

the

button

illuminates.)

When

a

compact

disc

is

inserted

during

reception

The

radio

is

turned

off.

(6)

Fader

control

Turn

upwards

to

decrease

the

volume

of

the

rear

speakers

or

downwards

to

decrease

the

volume

of

the

front

speakers.

Power

switch/VOL

(volume)/PULL

BAL

(balance)

control

Depress

to

turn

on

the

unit.

Press

again

to

turn

off.

Turn

clockwise

for

more

volume.

While

pulling

out

the

control,

turn

it

to

acjust

the

balance

of

the

right

and

left

channels.

(8]

MONO

button

and

indicator

[9]

“<q

BE

/SEEK

buttons

Used

for

lacating

the

beginning

of

a

desired

selection

or

for

automatic

tuning

Display

during

radio

reception

Each

time

the

DISPLAY

button

is

pressed,

the

display

indication

will

be

changed

as

follows.

Current

time

Receiving

frequency

8g.

i0

\

CDX-R88/R66

|

(i0}Reset

button

Press

this

button

with

a

pencil

or

similar

object

after

battery

replacement

or

when

no

button

or

control

functions.

{1}

MANU

(manual)/search

buttons

Used

for

manual

tuning

,

for

CD

search

operation

,

or

for

setting

the

clock

{12

Band

indicators

(13]

Display

window

(4)

STEREO

indicator

15]

DISPLAY

button

Press

repeatedly

to

change

the

display

information.

Display

during

play

Each

time

the

DISPLAY

button

is

pressed,

the

display

indication

will

change

as

follows.

Elapsed

playing

time

of

the

of

the

selection

Current

time

Track

number

The

unit

will

automatically

enter

the

stop

mode

when...

*

the

TUNER

button

is

pressed

during

disc

play.

*

the

car

ignition

key

is

turned

off

during

play

and

the

after

more

than

15

seconds

have

passed,

the

key

is

set

to

IGN

(ignition)

or

ACC

(accessory)

position.

(t§}PLAY/STOP

button

and

indicator

(

mw)

f7)

TUNER

button

fis}

BAND

button

(3]

Preset

buttons

Press

to

memorize

the

frequency

or

to

receive

a

preset

station.

(20)

MEM

(memory)/‘»

button

Used

for

locating

the

beginning

of

the

disc,

for

memorizing

the

tuned

station,

or

for

setting

the

clock

Important

Since

the

CD

system

offers

a

wide

dynamic

range,

the

peaks

of

the

high

level

inputs

are

recorded

with

high

fidelity,

and

the

noise

level

is

very

low.

Do

not

turn

up

the

volume

while

listening

to

a

portion

with

no

audio

signals

or

very

low

level

inputs.

If

you

do,

the

speakers

may

be

damaged

when

a

peak

level

portion

is

played.

To

stop

searching

Release

the

button.

The

desired

point

will

be

found

by

observing

the

display

window

or

monitoring

the

high-speed

sound

(only

during

play).

Keeping

the

»»

button

pressed

The

time

counter

displays

“- -”

when

you

have

passed

the

end

of

the

disc.

To

return

to

a

normal

display,

press

e<@

Or

<q

button.

CDX-R88/R66

|

HOW

TO

SET

THE

CLOCK

Power.

switch

MEM/

lL»

Hour

Minute

Before

setting

the

clock

To

set

hour

digits

¢

Turn

on

the

car

ignition

key.

While

pressing

MEM/t»,

press

—.

Depress

the

power

switch.

¢

Make

sure

that

no

disc

is

inserted.

To

set

minute

digits

¢

Make

sure

that

the

tuner

is

turned

off.

|

While

pressing

MEM/‘»,

press

+.

Using

-—

and

+

buttors

Each

time

the

button

is

pressed,

the

digits

increase

by

one.

To

change

the

digits

quickly,

keep

it

pressed.

Release

it

where

you

want

to

stop.

When

-

is

pressed

continuously

After

12,

the

indication

returns

to

1.

|

"

CDX-R88/R66

MEMORY

PRESET

TUNING

Once

a

station

is

memorized,

single

button

operation

allows

you

to

tune

in

that

station

easily.

TO

PRESET

A

STATION

1

Tune

in

a

desired

station

using

automatic

or

manual

tuning

.

2

Press

MEM.

3

Press

the

desired

preset

button

while

the

displayed

frequency

indication

is

flickering.

The

frequency

is

memorized.

4

Repeat

steps

1

to

3

to

preset

all

the

desired

stations.

For

each

preset

button,

one

FM1,

one

FM2

and

one

AM

station

can

be

memorized

in

the

desired

order.

TO

RECEIVE

A

MEMORIZED

STATION

1

Select

the

desired

band.

2

Press

the

desired

preset

button.

Note

The

frequency

indication

on

the

display

stops

flickering

in

about

5

seconds.

If

this

happens,

the

preset

operatian

cannot

be

made.

To

preset

the

station,

press

the

MEM

button

again.

When

a

new

frequency

of

the

same

band

is

memorized

The

frequency

will

be

erased.

ON

AM

TUNING

INTERVAL

(E

model

only)

The

interval

is

factory-set

according

To

change

the

AM

tuning

interval

to

the

AM

frequency

allocation

of

(adjustable

only

with

E

model)

your

country.

1

Disconnect

the

yellow

power

input

lead,

and

make

sure

that

nothing

9

kHz

area

|

European,

Asian,

African

is

displayed

on

the

display

and

Ocean

countries

window.

North,

Central

and

Set

the

AM

tuning

interval

selector

South

America

located

at

the

bottom

of

the

CD

|

10

kHz

area

player

to

the

proper

position.

Use

a

ball-point

pen

or

a

similar

object.

If,

however,

AM

frequency

allocation

might

be

different

from

that

shown

in

the

list,

change

the

AM

tuning

interval.

CDX-R88/R66

SECTION

1

DISASSEMBLY

Note:

Follow

the

disassembly

procedure

in

the

numerical

order

given.

1-1.

REMOVAL

LID

(UPPER/LOWER)

AND

FRONT

PANEL

@

transport

screw

Assemble

the

TRE/BAS

volumes

and

@

knobs

matching

in

the

arrow

direction.

TRE/BAS

volume

|

_®

@

PTT2.6x4

©

cover

fupper)

spacer

(A)

Ke

@

VOL

knob

front

panel

8

cover

@

=

Remove

the

claw

(lower)

by

pushing

in

the

arrow

direction.

CHASSIS

earth

read

O

Psv2.6x8

@

PTT26x4

blind

panel

chassis

©

9772.6

<4

eermaa

a)

wyP

2

7

‘Z

CDX-R&8/R66

CDX-R88/R66

MAIN

BOARD

INSULATOR

(B)

SOLENOID

(PM901)

@

Pull

out

the

flexible

board

by

pulling

up

the

upper

side

of

the

connector.

When

assembling,

lock

it

by

pushing

down.

©

solenoid

(PM901)

4}

precision

screw

-

Va

(P2

x

2.2)

(4

pes.)

@

reel

stopper

Ory

l

@

precision

screw

P2x

2.2

cle

@pr72.6

x

4

washer

@

teflon

washer

FLOATING

MECHANISM

®

floating

mechanism

Aira

®

teflon

washer

DISPLAY

BOARD

x

©

spring

When

assembling,

follow

the

CKb

oe

alphabetical

order

given.

\

@

insulator

(A)

é

A

3

©

precision

screw

l

Qh

Spex

2.2

ra

>

bp

i.

@

spring

<

@

Ps2x4

oe

©

spring

(2

pes.)

ie

@

precision

_

screw

P2x

2.2

ic

Kaa

\

i

a"

“3

2

S75

|

J

(7)

insulator

(C)

\a

s

i

@

spring

@

teflon

washer

P

©

gear

(2)

0

reel

stopper

C3)

reel

stopper

-

ey

@

itil

2]

down

gear

(5

pes.)

fiver

washer

display

board

:

®

teflon

washer

eae

Ei

ore

at

1

Ae

CDX-R88/R66

CDX-R8&8/R66

FLOATING

MECHANISM

(See

page

11.)

©

PTPWH2

x

5

OPTICAL

PICK-UP

BLOCK

@

spring

optical

pick-up

block

@

DAMPER

(C)

@®

DAMPER

(B)

spring

_—

hyper

damper

(S)

insulator

bracket

(C)

insulator

bracket

(B)

precision

screw

P2x

2.2

®@

DAMPER

(A)

spring

teflon

washer

precision

PTT2.6

x

4

S

screw

precision

screw

'

(P2

x

2.2)

insulator

bracket

(A)

Precision

screw

hyper

damper

(S)

P2x

2.2

hyper

damper

{S}

@

DAMPER

(D)

e

CIRCUIT

BOARDS

LOCATION

OF

CD

PLAYER

SECTION

DET

(E)

board

focus

board

VOL

board

LED

(E)

board

translation

board

DET

(D)

board

LED

(D)

board

CDX-R88/R66

SECTION

2

ELECTRICAL

ADJUSTMENTS

HIDE-AWAY

SECTION

The

FM

front-end

and

the

AM

tuner

unit

are

care-

fully

adjusted

at

the

factory

and

are

supplied

as

one

whole

block

for

replacement.

FM

Discriminator

Alignment

ook

VOM

Setting:

frange:

2.5

V

dc}

LOCAL

button:

OFF

MONO

button:

ON

TP2

oe

|W

Procedure:

TP1

ee

FM

rf

signal

distortion

generator

meter

hide-away

0.07

pF

unit

a

1.

Tune

the

set

to

98.1

MHz.

2.

Connect

a

VOM

to

NULL

test

point

(TP1,

TP2)

and

adjust

the

primary-side

core

(T1)

for

0

V

DC

LINE

OUT

plug

reading

on

the

VOM.

FM

antenna

terminal

Cortier

frequency?

981

MHz

3.

Adjust

the

secondary-side

core

(T2)

for

a

mini-

Output

level:

1

mV

(60

dB)

mum

reading

on

the

distortion

meter,

Modulation:

1

kHz,

75

kHz

deviation

(100%)

Note:

Repeat

the

secondary-side

and

primary-side

ad-

justments

several

times,

and

they

should

be

finally

done

by

the

primary-side

core

(T1).

71

[HIDE-AWAY

BOARD]

FM

front-end

AM

tuner

unit

,OX-R88/R66

FM

Auto-scan

Stop

Level

Adjustment

VOM

Setting:

(de

range)

LOCAL

button:

OFF

[7]

MONO

button:

OFF

FM

rf

signal

generator

antenna

terminal

Procedure:

pidacewer

1.

Set

FMrf

signal

generator

output

level

to

60

dB.

unit

Carrier

frequency:

98.1

MHz

Mode:

monaural,

no

modulation

Ou

tput

level:

60

dB

(1

mV),

25

dB

(18

pV)

0.01

uF

.

Tune

the

set

to

98.1

MHz.

2

3.

Set

FM

rf

signal

generator

output

level

to

25

dB.

4

.

Adjust

RV3

at

the

point

where

VOM

reading

suddenly

changes.

5.

Change

the

FM

rf

signal

generator

output

and

con-

firm

that

the

point

where

VOM

reading

suddenly

changes

is

35

+5

dB

(30

dB

to

40

dB).

1C6

(pin

)

@

AM

Auto-scan

Stop

Level

Adjustment

VOM

(de

range)

to

ICE

Oe

Setting:

LOCAL

button:

OFF

(pin

2)

(Poe

SSH

sSre

1

E

1

302

15

pF

!

)

65

pF

nd

i

Procedure:

9

]

b

1.

Set

AM

rf

signal

generator

output

level

to

60

dB.

AM

rf

1

signal

generator

2.

Tune

the

set

to

1000

kHz

or

999

kHz.

3.

Set

AM

rf

signal

generator

output

level

to

35

dB.

4

AM

dummy

antenna

.

Adjust

RV2

at

the

point

where

VOM

reading

suddenly

changes.

1000

&

i,

.

Change

the

AM

rf

signal

generator

output

mdi

con-

35dB8

GLVio

none

oe

firm

that

the

point

where

VOM

reading

siddenly

changes

is

35

+5

dB

(30

dB

to

40

dB).

CDX-R88/R66

FM

Stereo

Separation

Adjustment

FM

stereo

.

signal

generator

Setting:

output

channel

LOCAL

button:

OFF

L-CH L-CH

(A)

MONO

button:

OFF

Procedure:

om

RV1

for

minimum

reading.

©

fo

hide-away

o—o

Adjust

Q

unit

||

see!

UV,

RVI

for

minimum

FM

antenna

LINE

OUT

plug

reading.

terminal

L-CH

Stereo

separation:

(A)

—

Carrier

frequency:

98.1

MHz

R-CH

Stereo

separation:

©

—

®)

Output

level:

1

mV

(60

dB)

Modulation:

VTVM

connection

reading

(dB)

FM

rf

stereo

signal

generator

The

separations

of

both

channels

should

be

equal.

Audio

(1

kHz):

33.75

kHz

deviation

(45%)

Pilot

(19

kHz}:

7.5

kHz

deviation

(10%)

Sub-channel

(38

kHz):

33.75

kHz

deviation

(45%)

CDX-R88/R66

[CD

PLAYER

SECTION

|

1.

Perform

adjustments

as

given.

2.

Be

sure

to

use

the

disc

““YEDS-18”

parts

code:

3-702-101-01,

but

only

when

indicated.

3.

Power

supply

voltage:

DC

14.4

V

(more

than

2A)

PLL

Free

Run

Frequency

Adjustment

Procedure:

1.

Solder-bridge

the

main

board

point

(A)

: .

Connect

the

frequency

counter

to

main

board

test

(C503

69

is

grounded)

point

(1C503

G0

).

Remove

main

board

point

leads.

.

Turn

the

power

switch

on

(Do

not

use

the

disc),

(Disconnect

IC503

G6))

then

adjust

RV505

so

that

the

frequency

is

Connect

100

kQ

resistors

to

(),

).

4.3218

MHz

+10

kHz.

(This

is

to

adjust

the

IC503

()

voltage

to

6.

After

adjusting,

reset

1,

2

and

3

as

original.

2.5

V)

100k

R527

frequency

counter

Resistors

added

when

adjusting.

[MAIN

BOARD]

iat

ee

:

an

:

nae

peoeonypre

|

a

i

Ca

:

ae

Focus

Offset

Adjustment

Procedure:

oscilloscope

[MAIN

BOARD]

(Conductor

Side)

eeeasrayy

1.

Connect

the

oscilloscope

to

main

board

test

point

[RF].

2.

Put

the

set

into

play

mode

by

loading

the

disc.

3.

Adjust

main

board

RV502

so

that

the

oscilloscope

waveform

eye

pattern

is

good.

A

good

eye

pattern

means

that

the

diamond

shape

(©)

in

the

center

of

the

oscilloscope

can

be

clearly

distinguished.

Volt/Div:

200mV

Time/Div:

0.5

uSec

1.1

+0.3

Vp-p

CDX-R88/R66

Tracking

Offset

Adjustment

Procedure:

oscilloscope

[MAIN

BOARD]

(Conductor

Side)

BHepPejo

1

TRACKING

|

.

Connect

the

oscilloscope

to

main

board

test

point

TRACKING}.

.

Put

the

set

into

play

mode

by

loading

the

disc.

.

Press

the

44

or

DP]

(ora,

pe)

button,

then

check

the

traverse

waveform*.

.

Adjust

RV501

(main

board)

so

that

oscilloscope

reading

is

symmetrical

in

relation

to

0

V.

*Traverse

waveform:

This

is

the

tracking

error

waveform

appears

when

crossing

the

track.

Voilt/Div:

O5V

Time

Div:

2mSec

CenterO

V

traverse

wafeform

(100

track

jump

waveform)

CDX-R88/R66

Tracking

Gain

Adjustment

(rough

adjustment)

This

adjustment

is

to

be

performed

when

replacing

the

following

parts.

®

Optical

Pick-up

Block

@®

RV504

This

adjustment

should

be

performed

after

focus

offset

and

tracking

offset

adjustment

is

completed.

Procedure:

oscilloscope

[MAIN

BOARD]

(Conductor

Side)

eH

TRACKING

.

Connect

the

oscilloscope

to

main

board

test

point

TRACKING}.

.

Put

the

set

into

play

mode

by

loading

the

disc.

.

Turn

main

board

RV504

counterclockwise,

then

check

the

ocilloscope

waveform.

Fix

RV504

to

the

position

that

the

waveform

disappears.

Volt/Div:

O5V

Time/Div:

2

mSec

waveform

when

the

wave

appears

When

gain

is

lowered...

When

selecting

by

pressing

|¢4q

or

pp

button,

brake

application

is

poor

because

of

low

tracking

gain.

Therefore,

the

traverse

waveform

appears

after

the

100

track

jump

waveform,

then

the

selec-

tion

will

be

located

slowly.

100

track

jump

waveform

traverse

waveform

@

When

gain

is

highered

...

Operation

noise

is

heard

due

to

a

scratch

or

dust,

then

operation

will

be

instability.

MAX

side

MIN

side

(high

gain)

(low

gain)

bo

<o

When

VR

contact

point

is

here,

it

is

at

standard

position.

RV503

standard

position

CDX-R88/R66

Focus

Gain

Adjustment

(rough

adjustment)

@

IC

BLOCK

DIAGRAMS

FOR

DISC

PLAYER

SECTION

@

Semiconductor

Lead

Layouts

This

adjustment

is

to

be

performed

when

replacing

eels

Seer

ee

a

M54940FP

TC74HCO4F

DSCO10

:

1c501

CXA-10810

3

CXD11300

‘

3

the

following

parts.

‘cee

2SA1510

MB88505-502M

“4

a

©

Optical

Pick-up

Block

:

;

cece

@

RV503

ss

pear

2

§

a8

2SC2812L-7

,

(9)

:

2SC3395

Procedure:

aro(2)

=

65).

on

ran

K

TOP

VIEW

a

1

7

i

|

H

j

S

(TOP

VIEW)

2

3

i

1.

Set

RV503

(main

board)

to

the

standard

position.

[4

:

le

atl

[el

etn

coe

oe

FOG

1

68)

Fox

DTB113EK

fs

peewee

i

a

|

Fo«

AMP

DTB123YK

M5203

FP

LN1261C

2:

heer

stat

mee

is

not

apebnoemtal

amount

of

re

ug

ne

Iss

tog

pecans

a!

BBiieeK

peaneoG?

ape7aiionl

CNIAEIE

operation

noise

(white

noise)

from

the

2-axis

ebag

otf

STE

DTD

V4EK

He

. . A

AMP

i

a7

evise.

ere

is,

turn

S11

counter-

Lo

AMP

Fo

BUFFER

26)

ASY

d

If

there

is,

turn

RV503

slightly

count

es

fe

By

clockwise.

<

c

Ns

sane

Po)

23)

DGND

Gg:

in

M

anode

|

E

T

MAX

side

MIN

side

P01

Le

=

3

i

tau

ond

OU

(high

gain)

(low

gain)

Oo

fi

GENERATOR

A,

omcur

MARKING

SIDE

VIEW

(sor

view)

ms

aT

oe

P02)

>

z

@3)

cP

GENERATOR

1$$106

Mar

8

REI-V

AMP(2)

DIFFEREN.

2SA1348

MB88201-534M

10E2

vc(Q)—~

F

1-v

AMP

MIRR

2SA1503

CX7925B

TC4051BF

ERB12-01RK

@2)

IRROR

2SC634SP

TC4069UBP

TC4053BF

FO

aoerect

TOO

i)

DEFECT

28C2458-Y

cathode

k

BOTTOM

HOLD

vv

14131211109

8

INTERPOLATOR

16

9

<oD

@

Pap

r

a

me

li

:

sia

1234567

:

-

ar

TH

he

var

:

3

AA

When

VR

contact

point

pela

oie

is

here,

it is

at

standard

mip

POINT

L272M

1SS133

position:

va)

<

VOLTAGE

BUFFER

()

vee

MSM4094RS

RD3.6ES-B1

ig?

2SB1202

8765

RD5.6ES-B3

:

RV503

standard

position

i

cca

(6)

cc!

c

161614131211

109

RD7.5ES-B

RD10ES-B2

tong

“|

I

shore

(Top

view)

anode

Cathode

=

12345678

cathode

(Top

view)

AA

LA1140

fe

ee

-

|

TCR123

ae

=

|

S-8054HN

2SK184-GR

co

onode

:

is

i

4

tong

short

pp

________

BR4868K

1c502

CXA10820

LC74HC365M

anode

cathode

ao

16

5

gut

vio

vis

SGD

oes

ew

@

When

gain

is

lowered

..

.

picid

:

,

STK3400

The

set

does

not

play

because

of

no

focus

opera-

=

i

1

ay

—___——“4

S10

|

DCA015

gate

ths

;

LC3516AML-

@

When

gian

1S

highered

acest

FL

DATA

MEMORY

ADDRESS

DECODER

PCM551-1

te

tu

uy

anode

Operation

noise

is

heard

due

to

a

scratch

or

a

dust,

uPD82C43G

(Marking

side

view)

then

operation

will

be

instability.

°

"

r)

Ps

Zk

OUT

DECODER

|

cathode

TA7281P

SAG

FSi~q

TGI~2,

TMI~7?—

PSI~3

CXA10810

1

”

x

DCB015

(Top

view)

1

:

letter

side

ll

iy

cathode

2

ey

9

ae

CDX-R88/R66

SECTION

3

DIAGRAMS

3-1.

MOUNTING

DIAGRAM

—

HIDE-AWAY

SECTION

—

@

See

page

22

for

Semiconductor

Lead

Layouts.

—

Conductor

Side

—

1

@>

4)

3

.

4

5

6

7

8

7004

42

13

|

44

i

45

HIDE-

©

SEMICONDUCTOR

LOCATION

[HIDEAWAY

BOARD]

Location

|

Ref.

No.|

Location

A

G-5

1-9

t

J-9

J-8

J-11

B

J-12

1-12

J-1

F-7

G-7

E-7

‘e

G-7

J-9

BACK

UP.

F-8

D-5

POWER

ANT

(ssh

=

es

CNJ7O1

G-6

ACC

E-13

D-13

08

Dg

G-6

1-6

C-5

GND:

iLLUM,

IN

E

SP

OUT

(R)

F

G

H

J

K

Note:

Bae

2

iene:

.

os

4

5

;

“6.

i

-¥

~

3

9

n°

ee

|

a

Ca:

15

©

@

_

:part

mounted

on

the

conductor

side.

5

:

,

:

&

—23=

=)

ee

Sony CDX-R88 User manual

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