Sony HTC-D259 User manual

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1

Table of contents

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SERVICE

MANUAL

HTC-D259

is

the

compact

disc

deck

in

LBT-A27CDM

/

D259CD.

HTC-D359

is

the

compact

disc

deck

in

LBT-A37CDM

/D359CD.

SPECIFICATIONS

Cassette

deck

Recording

system

Frequency

response

4-track

2-channel

stereo

DOLBY

NR

OFF

With

Type

Il

cassette

(Sony

UX-S)

40

Hz

to

14

kHz

(+3

dB)

With

Type

I

cassette

(Sony

HF-S)

40

Hz

to

13

kHz

(+3

dB)

Wow

and

flutter

0.1%

(WRMS)

Compact

disc

player

Laser

Semiconducotr

laser

Wavelength

780

—

790

nm

Frequency

response

2

Hz

to

20

kHz

+

0.5

dB

Signal-to-noise

ratio

More

than

93

dB

Dynamic

range

More

than

90

dB

Harmonic

distortion

Less

than

0.008%

(1

kHz)

Channel

separation

More

than

90

dB

(1

kHz)

General

Mass

Approx.

6.9

kg

Dimensions

Approx.

355

X

225

xX

385

mm

(w/h/d,

including

projections)

Speaker

systems

(SS-D270)

Speaker

system

2-way

Mass

Approx.

6.3

kg,

per

speaker

Dimensions

Approx.

260

X

505

X

210

mm

(w/h/d)

Design

and

specifications

are

subject

to

change

without

notice.

Dolby

noise

reduction

manufactured

under

license

from

Dolby

Laboratories

Licensing

Corporation.

“DOLBY”

and

the

double-D

symbol

D0)

are

trademarks

of

Dolby

Laboratories

Licensing

Corporation.

nIG-D

Canadian

Model

HTC-D259

AEP

Model

UK

Model

E

Model

Australian

Model

HTC-D259/D359

PX

Model

HTC-D359

Photo:

HTC-D359

HCD-H150/H500

BU-5BD3

HCD-H170

/H170K/H700

DECK

A|TCM-190RA12CL

TCM-190RB22CL

This

appliance

is

classified

as

a

CLASS

1

LASER

product.

The

CLASS

1

LASER

PRODUCT

MARKING

is

located

on

the

rear

exterior.

Model

Name

Using

Similar

Mechanism

Base

Unit

Name

Model

Name

Using

Similar

Mechanism

Tape

Transport

Mechanism

Type

CLASS

1

LASER

PRODUCT

LUOKAN

1

LASERLAITE

KLASS

1

LASERAPPARAT

Laser

component

in

this

product

is

capable

of

emitting

radiation

exceeding

the

limit

for

Class

1.

The

following

caution

label

is

located

inside

the

unit.

:

INVISIBLE

LASER

RADIATION

WHEN

OPEN

CAUTION

;

AVOID

EXPOSURE

TO

BEAM.

*

USYNLIG

LASERSTRALING

VED

ABNING

NAR

ADVARSEL

;

SIKKERHEDSAFBRYDERE

ER

UDE

AF

FUNKTION

.

UNDGA

UDS

AETTELSE

FOR

STRALING.

VARO!

+

AVATTAESSA

JA

SUOJALUKITUS

OHITETTAESSA

;

DLET

ALTTHNA

LASERSATEILYLLE

*

LASERSTRALING

NAR

DENNA

DEL

AR

OPPNAD

PLAD

VARNING

OCH

SPARREN

AR

URXOP

ADVARSEL

;

ae

ye

LASERSTRALING

NAR

DEKSEL

APNES

UNNGA

EKSPONERING

FOR

STRALEN

COMPACT

DISC

DECK

ONY.

MODEL

IDENTIFICATION

Back

Panel

Note

on

the

Transit

key

LLL

LL

4-955-832-01:

HTC-D259

4-955-832-11:

HTC-D359

The

transit

key

(a))

on

the

bottom

exterior

of

the

CD

player

protects

the

optical

system

against

shock

during

transportation.

Before

operating

the

unit,

be

sure

to

remove

the

key

by

following

the

instructions

on

the

label,

and

store

it

in

a

safe

place.

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.

NOTES

ON

LASER

DIODE

EMISSION

CHECK

The

laser

beam

on

this

model

is

concentrated

so

as

to

be

focused

on

the

disc

reflective

surface

by

the

objective

lens

in

the

optical

pick-up

block.

There-

fore,

when

checking

the

laser

diode

emission,

observe

more

than

30

cm

away

from

the

objective

lens.

SAFETY-RELATED

COMPONENT

WARNING!!

COMPONENTS

IDENTIFIED

BY

MARK

A

OR

DOTTED

LINE

WITH

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

PUB-

LISHED

BY

SONY.

When

transporting

the

unit,

put

the

key

to

its

original

position

and

lock

it

in

place.

TABLE

OF

CONTENTS

Section

Title

Page

Specifications

-+++srtte

reser

steer

eter

eee

ee

eeee

1

Notes

on

Handling

the

Optical

Pick-up

Block

or

Base

Unit

eee

ere

ee

ech

ee

eee

ee

ee

ee

te

ee

2

Notes

on

Laser

Diode

Emission

Check

-+++++++++++:

2

Note

on

the

Transit

Key

ee

2

1.

GENERAL.

62<s2sisesS

oe

exdtnd

te

ues

eS

2.

ADJUSTMENTS

2-1.

Mechanical

Adjustments

«+++-:++rrrrtreeeees

4

2-2...

-

Electrical

Adjustments:

«1+

*}

9s

273439

es

4

Cassette

Deck

Section:

*saassesurisase

siete

4

CD

Section

Ce

ee

OY

7

3.

DIAGRAMS

3-1.

CD

Section

Block

Diagram

++++++++rrretrees

9

3-2.

|

Cassette

Deck

Section

Block

Diagram

---::-:>

Bi

3-3.

CD

Section

Printed

Wiring

Boards

--+++:+-+::

14

3-4,

CD

Section

Schematic

Diagram

-++++++++°+++

17

3-5.

Cassette

Deck

Section

Schematic

Diagram

----

22

3-6.

Cassette

Deck

Section

Printed

Wiring

Boards

--

27

4.

EXPLODED

VIEWS

--ecee

tree

eer

etree

31

5.

ELECTRICAL

PARTS

LIST

.::-:::---::::

38

ATTENTION

AU

COMPOSANT

AYANT

RAPPORT

A

LA

SECURITE!

LES

COMPOSANTS

IDENTIFIES

PAR

UNE

MARQUE

/\

SUR

LES

DIAGRAMMES

SCHEMATIQUES

ET

LA

LISTE

DES

PIECES

SONT

CRITIQUES

POUR

LA

SECURITE

DE

FONCTIONNEMENT.

NE

REMPLACER

CES

COM-

POSANTS

QUE

PAR

DES

PIECES

SONY

DONT

LES

NUMEROS

SONT

DONNES

DANS

CE

MANUEL

OU

DANS

LES

SUPPLEMENTS

PUBLIES

PAR

SONY.

This

section

is

extracted

from

SECTION

1

instruction

manual.

GENERAL

|Mererz\((e)ameyi

Ore)

alice)

is)

Cassette

Deck

[1]

Tape

operation

buttons

<4

Leftward

fast

winding/AMS*

PP

Rightward

fast

winding/AMS*

>

Forward

play

“@

Reverse

play

M

Stop

&

EJECT

BE

PAUSE

(deck

B

only)

O

REC

MUTE

(record

muting)

(deck

B

only)

@

REC

(record)

(deck

B

only)

[2]

Cassette

holders

—_

[3]

DOLBY

NR

(noise

reduction)

switch

(32,

=n

82)

=

[4]

DIRECTION

MODE

selector

(28,

32, 38,

=m

EJ

=

5.

en

re)

[5]

DUBBING

SPEED

(HIGH/NORMAL)

4

I

button

(38,

40)

16

[6]

CD

SYNCHRO

button

(82,

86)

7

(HTC-D359)

o

iE

|

9

|

19

Compact

Disc

Player

20)

[7]

DISC

1

-

5

buttons

(42,

46,

50,

52,

54)

Disc

tray

22)

[9]

</>

I

(AMS*)

buttons

(46,

52,

54,

ag

88,

96)

:

[10]

</b>

(manual

search)

buttons

(48,

88,

96)

TIME

button

(44)

FADER

button

(94)

EDIT/TIME

FADE

button

(88,

94)

[14]

CHECK

(program

check)

button

(54)

[15]

CLEAR

(program

clear)

button

(56)

[16]

4

OPEN/CLOSE

button

(42)

[17]

DISC

SKIP

button

(42,

46)

[18]

fl

(stop)

button

(42)

Bl

(pause)

button

(42)

[20]

B>

(play)

button

(42)

[2]

PLAY

MODE

button

PROGRAM

button

(52,

86)

SHUFFLE

button

(50)

CONTINUE

button

(42)

[22]

MUSIC

SCAN

button

(58)

[23]

REPEAT

button

(60)

[24]

Display

window

*

AMS

is

the

abbreviation

of

Automatic

Music

Sensor.

114

bracket

(press

pulley)

SECTION

2

ADJUSTMENTS

2-1.

MECHANICAL

ADJUSTMENTS

Precautions:

1.

Clean

the

following

parts

with

a

denatured-alcoholmois-

tened

swab;

record/playback/erase

head

pinch

roller

rubber

belts

capstan

idler

2.

Demagnetize

the

record/playback

head

with

a

head

demag-

netizer.

(Head

demagnetizer

do

not

approach

for

the

erase

head.)

3.

Do

not

use

a

magnetized

screwdriver

for

the

adjustments.

4.

After

the

adjustments,

apply

suitable

locking

compound

to

the

parts

adjusted.

3.

The

adjustments

should

be

performed

in

the

rated

power

supply

voltage

unless

otherwise

noted.

Torque

Measurement

Torque

Torque

meter

35

to

60g

-

cm

(0.49

to

0.83

oz

¢

inch)

2

to

6g°cm

(0.03

to

0.08

oz-inch)

.

35

to

60g

°-

cm

REV

CQ-102RC

(0.49

to

0.83

oz

«

inch)

REV

2

to

6g-cm

CQ-102RC

(0.03

to

0.08

oz-inch)

FWD

Back

tension

CQ-102C

.

.

70

to

110g

-em

FF,

REW

CQ-201B

(0.98

to

1.52

02

+

inch)

Chucking

Arm

Height

Adjustment

This

Adjustment

should

be

performed

after

the

electrical

adjustment

and

on

replacing

adjusting

screw,

magnet,

or

chucking

pulley.

Procedure

:

1.

Set

disc

(YEDS-18)

to

the

optical

pick-up

block.

(Fig.

A)

Z.

Adjust

the

bracket

(press

pulley)

to

the

center

of

the

magnet

with

adjusting

screw.

(Fig.

B)

adjusting

screw

(+B3

X

25)

YEDS-18

chucking

yoke

magnet

chucking

pulley

Fig.

B

2-2.

ELECTRICAL

ADJUSTMENTS

0

dB=0.775

V

(AF)

Precautions:

CASSETTE

DECK

SECTION

1.

Demagnetize

the

record

“playback

head

with

a

head

demagnetizer.

(Do

not

bring

the

head

demagnetizer

close

to

the

erase

head.)

Do

not

use

a

magnetized

screwdriver

for

the

adjustments,

After

the

adjustments,

apply

suitable

locking

compound

to

the

parts

adjusted.

4,

The

adjustments

should

be

performed

with

the

rated

power

supply

voltage

unless

otherwise

noted,

5.

The

adjustments

should

be

performed

in

the

order

given

in

this

service

manual,

(As

a

general

rule,

playback

circuit

adjustment

should

be

completed

before

performing

recording

circuit

adjustment.)

6.

The

adjustments

should

be

performed

for

both

L-CH

and

R-CH,

¢

Switches

and

controls

should

be

set

as

follows

unless

otherwise

specified.

DOLBY

NR

switch:

OFF

TAPE:

TYPE

I

PB

Level

Adjustment

Record

Playback

Head

Azimuth

Adjustment

Note

:

Perform

this

adjustments

for

both

decks,

Procedure

:

1,

Mode:

FWD

playback

Tape

Speed

Adjustment

test

tape

P-4-A100

(10

kHz,

—

10

dB)

L-CH

oscilloscope

2.

Turn

the

adjustment

screw

and

check

output

peaks.

If

the

peaks

do

not

match

for

L-CH

and

R-CH,

turn

the

adjustment

screw

so

that

outputs

match

within

1

dB

of

peak,

within

1dB

within

output

1qB

level

"

—>

screw

position

L-CH

R-CH

peak peak

Screen

pattern

inphase

45°

90°

135°

180°

ny

good

wrong

3.

After

the

adjustments,

apply

suitable

locking

compound

to

the

parts.

adjusted,

Adjustment

Location

:

Adjustment

screw

REC

“PB

head

(deck

B)

or

PB

head

(deck

A)

Tape

Speed

Adjustment.

Procedure

:

Mode

:

playback

test

tape

WS-48B

frequency

counter

(3

kHz,

0

dB)

fieets

ol

—

set

O+

CN101

Bee

ech

Pin

@

(R-CH)

¢

High

speed

adjustment

(Must

be

first

Adjustment

B

deck)

1.

Push

HIGH

speed

button.

2,

Adjust

RV71

so

that

the

frequency

counter

reads

6,000

+

30Hz,

e

NORMAL

speed

adjustment

1.

Push

NORMAL

speed

button.

2.

Adjust

RV72

so

that

the

frequency

counter

reads

3,000+

15Hz,

(See

right

for

Adjusting

Parts

Location)

Frequency

difference

between

deck

A

and

deck

B

the

beginning

of

the

tape

should

be

within

1%,

Playback

Level

Adjustment

Procedure:

test

tape

P-4-L300

(315Hz,

0

dB)

pee

CN101

Pin@

(L-CH)

Pin

@(R-CH)

VIVM

Mode

:

FWD

playback

DECK-A

side

RV11

(L-CH),

RV21

(R-CH)

DECK-B

side

RV11

(L-CH),

RV21

(R-CH)

so

that

the

limits

below

are

satisfied.

Adjustable

limits

:

CN101

level:

—

7.7

£0.5dB

(0.48

—

0.67V)

level

difference

between

the

channels:

within

1.0dB

(See

right

for

Adjusting

Parts

Location)

Record

BIAS

Current

Adjustment

|

DECK

B

Procedure

:

1,

Mode:

record

AFC

OSC

blank

tape

C7)

CS-122

j

attenuator

oo

O

H

}6Se

mas

———

500

©

CN101

Pin@

(L-CH)

Pin

©

(R-CH)

1)

315

Hz

2)

10

kHz

~

30

dB

(0.0245

V)

2.

Mode:

Playback

recorded

portion

VTVM

pas

CN101

A

ey

Pin

@(R-CH)

Playback

the

signal

recorder

in

step

1.

Confirm

that

the

10kHz

playback

output

is

0+0,5dB

relative

to

the

315Hz

output.

If

necessary,

adjust

RV12

(L-CH),

RV22

(R-CH)

and

repeat

the

steps

given

above,

(See

right

for

Adjusting

Parts

Location)

Record

Level

Adjustment

|

DECK

B

sAdjusdng:

alte,

Lecauer

Setting

:

TC

MAIN

BOARD

(Conductor

Side)

TAPE»

TYPE

-J

piiies

We

cic

|

be-w

bow

RV101

RV201

Procedure

:

CCH:

OR

1,

Mode:

record

REC

level

AFC

OSC

blank

tape

€°3

CS-122

5

attenuator

oS

ot

Ll

ooo.

|

CN101

Pin@

(L-CH)

Pin

©

(R-CH)

315

Hz,

—

30

dB

(0.0245

V)

2.

Mode

:

playback

aera

AUDIO

BOARD

(Conductor

Side)

recorded

portion

M901

RV72

ae

25)

Normal

speed

——»O

RV71

High

speed

—+O

CN101

Pin

(Lor

Pin

@

(R-CH)

3.

Playback

the

signal

recorded

in

step

1.

Confirm

that

the

signal

level

is

within

the

adjustment

limits

below.

If

necessary,

adjust

RV101

(L-CH),

RV201

(R-CH)

and

repeat

the

step

1-3.

PB

level

Adjustable

:

—

30.0

+0.5dB

(0.0231

—

0.026V)

(See

right

for

Adjusting

Parts

Location)

CD

SECTION

Note

:

1.

CD

Block

basically

constructed

to

operate

with-

out

adjustment.

Therefore,

check

each

item

in

order

given.

2.

Use

YEDS-18

disc

(3-702-101-01)

unless

otherwise

indicated.

3.

Use

the

oscilloscope

with

more

than

10M2

im-

pedance.

4,

Clean

an

object

lens

by

an

applicator

with

neutral

detergent

when

the

signal

level

is

low

than

specified

value

with

the

following

checks.

S

Curve

Check

oscilloscope

O

——s

TP

(FEO)

ow—o}

TP(VC)

o~w—lo-

Procedure

:

1,

Connect

oscilloscope

to

test

point

TP

(FEO)

on

BD

board.

2.

Connect

between

test

point

TP

(FES)

and

TP

(VC)

by

lead

wire.

3.

Turned

Power

switch

on

and

actuate

the

focus

BD

board

serch.

(actuate

the

focus

serch

when

disc

table

is

moving

in

and

out.)

4.

Check

the

oscilloscope

waveform

(S

curve)

is

symmetrical

between

A

and

B.

And

confirm

peak

to

peak

level

within

341Vp-p.

S

curve

waveform

symmetry

A

oom

+

within

3:1Vp-p

5.

After

check,

remove

the

lead

wire

connected

in

step

2.

Note:

*

Try

to

mesure

several

times

to

make

sure

that

the

ratio

of

A:

B

or

B:

A

is

more

than

10:

7.

*

Take

sweep

time

as

long

as

possible

and

light

up

the

brightness

to

obtain

best

waveform.

RF

Level

Check

oscilloscope

BD

board

aan

TP

(RFO)

o+—°

+

TP

(VC)

Oo=ur——0

-

Procedure

:

1.

Connect

oscilloscope

to

test

point

TP

(RFO)

on

BD

board.

2.

Turn

Power

switch

on.

Put

disc

(YEDS-18)

in

and

playback.

4.

Confirm

that

oscilloscope

waveform

is

clear

and

check

RF

signal

level

is

correct

or

not.

Note:

Clear

RF

signal

waveform

means

that

the

shape

“©”

can

be

clearly

distinguished

at

the

center

of

the

wave-

form.

VOLT/DIV

;

200mV

RF

signal

waveform

TIME/DIV

:

500nS

VAKAAKA/

ARR

AAA

AAMAS

level:

1.2

033

Vp-p

NIN)

MWA

E-F

Balance

Check

oscilloscope

BD

board

een

TP(TEO)

o~w—lo>

TP(vc)

ow—lo-

Procedure

:

1.

Connect

test

point

TP

(TEST)

to

ground

and

TP

(TES)

to

TP

(VC)

with

lead

wire.

2.

Connect

oscilloscope

to

test

point

TP

(TEO)

on

BD

board.

Turn

Power

switch

on.

4.

Put

disc

(YEDS-18)

in

and

playback.

5.

Confirm

that

the

osilloscope

waveform

is

sym-

metrical

on

the

top

and

bottom

in

relation

to

OV,

and

check

this

level.

Traverse

oscilloscope

A

it

mM

symmetry

level:

2£1Vp-p

6.

Remove

the

lead

wire

connected

in

step

1.

RF

PLL

Free-run

Frequency

Check

Procedure

:

1.

Connect

frequency

counter

to

test

point

(PLCK)

with

lead

wire.

Main

board

frequency

counter

na

{ca

)

TP

(PLCK)

O~t—j0+

2.

Turn

Power

switch

on.

3.

Confirm

that

reading

on

frequency

counter

is

4,

3218MHz.

Focus/Tracking

Gain

‘This

gain

has

a

margin,

so

even

if

it is

slightly

off.

There

is

no

problem.

Therefore,

do

not

perform,

this

adjustment.

Please

note

that

it

should

be

fixed

to

mechanical

cen-

ter

position

when

you

moved

and

do

not

know

original

position.

|

Adjustment

Location

;

MAIN

BOARD

(Conductor

Side)

TP

TEST

~~

TP

PLCK

Adjustment

Locations:

(BD

board]

~-

conductor

side

—

CN655

SYSTEM

CONTROL

3-1.

KSS~—240A

OPTICAL

PICK

UP

BLOCK

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RF

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1¢200

CD

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3

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cor

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