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TEAC

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(1

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SERVICE

MANUAL

_

VRDS-T1

CD

TRANSPORT

Z

COMPACT

DIGITAL

AUDIO

©

CONTENTS

BR

1

SAFETY

INFORMATION

-:ccceeceeccecccrec

cece

eeeeeeeeeneeeseeeee

D)

2:

SPECIFICATION

Si

kos

tes

ces

cena

incendie

nxss

ncas

tepenaceneaeees

3

{t BR

;

3

CASE

AND

FRONT

PANEL

REMOVAL

--------+--serersee

ee

4

HEE

ORLA

.

4

ADJUSTMENT

AND

CHECKS

«-eeeeeeceeeeeeeceeeeeeeeeess

seers

5

2

HER

5

EXPLODED

VIEWS

AND

PARTS

LIST

------------++e

essere

8

SABRIEN-YURAb

.

6

PC

BOARDS

AND

PARTS

LIST

cevcececereecectececeeeeeeeeees

14

BRB

EN-YURAS

7

16

BLOCK

DIAGRAMS

iiss

esesedse

cesses seests

i

esvonausecy

da

seen

18

ICFOyvyISAVIDA

Effective

:

August,

1994

5704069500

VRDS-T1

1

SAFETY

INFORMATION

SAFETY

INFORMATION

This

product

has

been

designed

and

manufactured

according

to

FDA

regulations

“title

21,

CFR,

chapter

1,

subchapter

J,

based

on

the

Radiation

Control

for

Health

and

Safety

Act

of

1968”,

and

is

classified

as

class

1

laser

product.

There

is

not

hazardous

invisible

laser

radiation

during

operation

because

invisible

laser

radiation

emitted

inside

of

this

product

is

completely

confined

in

the

protective

housings.

The

Jabel

required

in

this

regulation

is

shown

@M.

CAUTION

@

If

you

remove

the

above-mentioned

housings

under

the

operating

state

of

the

product,

there

is

a

possibility

of

human

access

to

the

invisible

laser

radiation

emitted

from

the

optical

pickup.

Pay

careful

attention,

not

to

let

the

invisible

laser

beam

enter

into

your

eyes.

@

If

you

find

a

troubled

state

of

the

laser

diode,

change

to

the

specified

new

optical

pickup.

@

|f

you

find

a

troubled

state

of

safety

interlock

parts,

change

to

the

same

type

parts

described

in

parts

list.

CERTIFICATION

.

THIS

PRODUCT

COMPLIES

WITH

DHHS

RULES

21

CFR

SUBCHAPTER

J

APPLI-

CABLE

AT

DATE

OF

MANUFACTURE

TEAC

CORPORATION

27

SNAKA:CHO

MUSASHINO-SHI

TOKYO

JAPAN

MANUFACTURED

W

Optical

pickup:

Type

:

KSS-240A

Manufacturer

:

SONY.

Corporation

Laser

output

:

Less

than

0.2

mW

on

the

objective

lens

Wavelength

<:760

—

800

nm

e

CAUTION

eACHTUNG

¢OBSERVERA

e

ADVARSEL

@

THIS

LABEL

IS

ATTACHED

TO

THE

PLACE

AS

ILLUSTRATED

TO

INFORM

THAT

THE

APPARATUS

CONTAINS

A

LASER

COMPONENT.

CAUTION

-

INVISIBLE

LASER

RADIATION

WHEN

OPEN

AND

"

£

INTERLOCKS

GEFEATED

AVOID

EXPOSURE

TO

BEAM

VORSICHT)

UNSICNTBARE

CASERSTRAHLUNG

TROT

AUS

WENN

DECKEL

GEOFFSET

UND

WENN

SICHERMEITSVEARIEGELUNG

UBERBRUCKT

1ST

RICHY

DEM

STRAW

AUSSETZEN?

VARMNG

-

OSYNLIG

LASERSTRALNING

NAR

DENNA

DEL

ARLOPPNAD

OCH

SPARE

AR

URKOPPLAD

STAALEN

AR

FARLIG

:

(@

DIESE

AUFKLEBEMARKE

IST

AN

DEM

IN

DER

ABBILDUNG

GEZEIGTEN

ORT

ANGEBRACHT

UM

DARAUF

HINZUWEISEN,

DASS

IM

INNERN

DES

GERATS

EINE

LASER-KOMPONENTE

BEFINDET.

@

PASKRIFTEN

SITTER

PA

APPARATEN

SOM

VISAS

SOM

UPPMANING

OM

ATT

APPARATEN

OMFATTAR

EN

INBYGGD

LASERKOMPONENT.

AOVARSEL

»

USYNLIG

LASERSTRALING

VEO

ABNING.

NAR.

‘SIKKERMEOSAF

BRYDERE

ER

UDE

AF

FUNK

TION

UNDGA

UOSETTELSE

FOR

STRALING

VAROITUS!

SUOJAKOTELOA

Et

SAA

AVATA

LAITE

SISALTAA

(A

LAMETTAA

INAKYMATONTAI

'SHUMWLLE

VAARALLISTA

LASEASATEILYA,

ADVARSEL

-

USYNUG

CASERBESTRALING

NAR

DENNE DELEN

ER

'N

OG

SKKERHETSSPERREN

ER

UTKOBLET

UNNGA

UTSETTELSE

FOR

STRALING

@

DETTE

MARKAT

ER

ANBRAGT

SOM

VIST

I

ILLUSTRATIONEN

FOR

AT

ADVARE

BRUGEREN

OM

AT

APPARATET

INDEHOLDER

EN

LASERKOMPONENT.

@

DETTE

MERKAT

ER

SOM

VIST

PA

ILLUSTRATIONEN

ANBRAGT

PA

INDERSIDEN

AF

TOPD/EKSLET

FOR

AT

ADVARE

BRUGEREN

OM

AT

YDERLIGERE

FREMTR/ENGEN

VIL

VERE

FORBUNDET

MED

FARE

FOR

AT

UDS/ETTE

SIG

FOR

LASERSTRALING.

:

ADVARSEL-

BETJENING

AF

ANDRE

KONTROLLER

OG

REGULATORER

ELLER

BENYTTELSE

AF

ANDRE

FREMGANGSMADER

END

BESKREVET

HERI

ER

FORBUNDET

MED

FARE

FOR

USDA-TTELSE

FOR

LASERSTRALING.

VARNIG:

APPARATEN

INNEHALLER

LASER

KOMPONENT

MED

STRALNING

OVERSTIGANDE

KLASS

1

“ADVARSEL:

USYNLIG

LASERSTRALING

VED

ABNING

NAR

2

SIKKERHEDSAFBRYDERE

ER

UDE

AF

FUNKTION.

UNDGA

UDSAETTELSE

FOR

STRALING.”

“VAROITUS!

SUOJAKOTELOA

EI

SAA

AVATA,

LAITE

SISALTAA

LASERDIODIN.

JOKA

LAHETTAA

(NAKYMATONTA)

SILMILLE

VAARALLISTA

LASERSATEILYA’.

ADVARSEL:

USYNLIG

LASERBESTRALING

NAR

DENNE

DELEN

ER

APEN

OG

SIKKERHETSSPERREN

ER

UTKOBLET

UNNGA

UTSETTELSE

FOR

STRALING.

CLASS

1

LASER

PRODUCT

LUOKAN

1

LASERLAITE

KLASS

1

LASERAPPARAT

2

SPECIFICATIONS

{rt

£R

AUDIO

|

(A-F

44)

Digital

Output

0.5Vp-p/75Q

(Coaxial)

FUIWHA

-15dBm

—-21dBm

(Optical)

PICK

UP

(Eva

Pu)

Type

Optical

3-Beam

laser

pickup

Ax

Objective

Lens

2-dimensional

parallel

drive

SL

Y

ARRAN

Laser

Type

GaAlAs

type

semiconductor

laser

sta

Wave

Length

780nm

SIGNAL

FORMAT

Sampling

Frequency

44.1kHz

Quantization

Bit

16-bit

linear/

channel

Channel

Bit

Rate

4.321

8Mb/sec

Channel

Modulation

Code

EFM

(Eight

to

Fourteen

Modulation)

CIRC

(Cross

Interleave

Reed

Solomon

Code)

Error

Correction

GENERAL

Power

Requirements

120/230V

AC,

50-60Hz

(U.S.A./

Canada/General

Export

Model)

230V

AC,

50Hz

(Europe

Model)

240V

AC,

50Hz

(U.K.

Model)

Power

Consumption

11

watts

Dimensions

(W

x

H

x

D)

442

x

149

x

331mm

(17-3/8"

x

5-7/8"

x

13-1/16"

>

Weight

(net)

Qkg

(19-13/16

Ibs)

Standard

Accessories

Wireless

Remote

Control

Unit

:

RC-539(VRDS-TiN)

RC-540

(VRDS-T1B)

Battery

(SUM-3,

“AA”,

“R6”.

type)

x2

@lmprovements

may

result

in

specification

or

feature

changes

without

notice.

VOLTAGE

CONVERSION

Be

sure

to

remove

the

power

cord

from

the

AC

outlet

before

repositioning

the

voltage

converter

switch.

1.

Locate

the

voltage

selector

on

the

rear

panel.

2.

Using

a

flat-bladed

screwdriver,

set

to

the

appropriate

230

V

or

120

V

position

according

to

your

area.

RR

(25

74—Vy

hb)

ALAR

Bite

y

bh

meL—h

BAX

I>-MEAX

(A)

BRED

SESS

=e

‘Sian

|

VRDS-T1

0.5Vp-p/75Q

(COAXIAL)

-

15~-21dBm

(OPTICAL)

SL

YAH,

KERGE-L

2

RIF

TERED

BRL

780nm

44,1kHz

1BEy

h-ULP/FerUa

4.3218Mb/sec

EFM

CIRC

100V

AC

50-60Hz

11W

442

x

149

x

331mm(W

XH

xD)

9kg

@I4VLAUVEIY

RC-539(VRDS-T1N)

RC-540(VRDS-T1B)

@

ez

Bik

(B3,

SUM-3)

x2

ORRRAS

*

HBR

LOSES,

BORD

PET

BET

SC

CMEVET.

VOLTAGE

SELECTOR

230V

4

120V.

VRDS-T1

|

3

CASE

AND

FRONT

PANEL

REMOVAL

KER

AORLA

in

number-

order

Disassemble

in

BSmBiCALT<

EA

|

VRDS-T1

4

ADJUSTMENT

AND

CHECKS

me

cme

4-1

Handling

the

pickup

assembly

@Before

servicing

the

pickup

assembly

be

sure

to

prevent

electrostatic-inducer

destruction

by

grounding

not

only

test

equipment

in

use

but

also

yourself

as

shown

in

Fig.

4-1.

*

Electrostatic

charge

drastically

shortens

the

operating

life

of

the

laser

diode

or

possibly

results

in

its

destruction.

@During

the

transportation,

mounting

and

dismounting

of

the

assembly,

support

with

your

fingers

at

points

A

and

B

as

shown

in

Fig.

4-2.

Be

particularly

careful

not

to

touch

the

actuator,

photosensor

and

LD

plate

and

do

not

apply

force

to

them.

@Don’t

disassemble

the

pickup

ass’y.

@Don’t

apply

shock

to

the

pickup

ass’y.

@Don’t

place

the

assembly

in

a

place

subject

to

excessive

dust,

heat

or

moisture.

Earth

ring

(Lead

wire)

Pick-up

case

Chassis

(GND)

Resistor

IMQ~10MQ

Earth

Fig.

4-1

4-2

Objective

@Laser

beams

are

similar

to

infrared

rays.

Don’t

look

at

the

beams

directly

and

keep

your

eyes

at

least

30cm

away

from

them.

@Don’t

touch

the

objective

with

fingers.

@if

objective

becomes

dirty,

playback

will

deteriorate.

To

clean

the

objective,

moisten

a

good

cleaning

tissue,

such

as

made

by

KODAK,

in

isopropyl

alcohol

and

wipe

the

objective

gently.

Wipe

off

and

excess

fluid

with

a

dry

cleaning

tissue.

4-3

SERVO

ADJUSTMENT

TEST

DISC:

MCD-111

or

YEDS-18

4-3-1

Checking

the

pickup

actuator

operation

Before

loading

the

disc,

turn

the

power

ON

and

check

that

the

pickup

actuator

moves

up

and

down

six

times.

(If

the

pickup

is

not

at

inside

on

the

disc,

perform

the

above

operation

after

moving

the

pickup

to

the

inside.)

4-1

E»

77»

7

ASSY

ORK

OLY

IT

TST

ASSY

ERORIABSM,

WERE

CRBERS

F-REMSZLHIZ.

ARP

AEA,

HEBBAL

LO<

EW,

(Fig.

4-1)

*LD-F-¥Y4A—-laL

BBR

Md

S

LAS

CEE

Lid,

Etc

LET

OCLERBLT<S

RSU.

ORDA,

ROAL,

HSMUORI,

Fig.

4-2OARBE

BH

CHATCHSU,

BI

7Fat—7—-,

HRM,

LDS

—

held,

FAN

OHEMARY

LIEWEC

RSW.

OLY

IT

y

TS

ASSY

RADHES

KOSHI

ELLIE

CE

SW

@LY

TT

oT

ASSY

IEF

°

GBM

AME

6

KS

V0

Ot

KIVHLORET

ABM.

BR

SOMME

T

CHEWS

4-2

ety

XICOWT

OL

—

FHA

AROA

AMARTH.

HORLOA,

A

LY

XAG

30cm

LAEMEL

TK

RSW,

@VVAMUFEMNEWVE

RSW.

@UV

AANA

<

EBEREDAUREFLET

OT,

KO

ES

Riz

5

OO

SO

VY

RIYHaVITR—2N—

(KODAK

HBL)

I.

ta

L-IPIVA—I

(LP.A)

SU

CHE

L.

RAROTWE

AZICMPFRE

ETCH

SW

4-3

+—

RI

FARF4RI:

MCD-111

H¥IKYEDS-18

4-3-1

EI

PF

vo

ATIF

AL—F—BEF

cy

7

RON

CYy

77

vy

ATIF

at—-¥-MOM(FAAZ

RUT

BIBS

3B)

EPRS

SCE.

(Ev

Ty

TORARMIEBWS

Sid,

RAAKBHRLIMIET

SOL.)

F

4

AT

URBLGW

VRDS-T1

|

4-3-2

Clock

frequency

adjustment

1.

Connect

the

frequency

counter

to

P411

on

SERVO

PCB.

2.

Adjust

C55

so

that

the

clock

frequency

is

16.9344MHz

+25ppm

at

the

stop

mode.

4-3-3

Focus

gain

adjustment

1.

Apply

1.07kHz/10Vp-p

(When

using

MCD-111)

or

1.05kHz/10Vp-p

(When

using

YEDS-18)

to

TP1

pin

1

(FE2)

from

an

external

OSC

via

100k

Q

resistor.

2.

Play

the

track

4,

and

adjust

V402(F.GAIN)

so

that

phase

at

TP1

pin

2

(FE1)

is

90°

with

respect

to

that

of

the

external

OSC.

Oscillator

Oscilloscope

4-3-2

JO»

TARR

1.

SERVO

PCBO

P411

ARRAY

YY

—EERET

SD

2.

AEILIRGE

CO

JARED

16.9344MHz

+

25ppm

ik

SHKII

C55

SHEETS.

4-3-3974

—-HA2T4

VRB

1.

8B

OSC

KY

100k

Q

OHMESP

LT

1.07kHz/10Vp-p

(MCD~

111

le

CHSERS)

¥

1k

1.05kHz/

10Vp~p

(YEDS-

18

CHE)

OSE

TPIOLBEY

(FEZ)

ANTS.

2.

SHEE

L.

TP1O

2B

Y

(FEL)

EMMBOSC

EON

290°

(AKG

V4O2

(F.GAIN)

HESS.

SERVO

PCB

Fig.

4-3

4-3-4

Tracking

gain

adjustment

1,

Apply

1.30kHz/10Vp-p

(When

using

MCD-111)

or

"1.,09kHz/10Vp-p

(When

using

YEDS-18)

to

TP1

pin

3

(TE2)

from

an

external

OSC

via

100k

Q

resistor.

2.

Play

the

track

4,

and

adjust

V401(T.GAIN)

so

that

phase

at

TP1

pin

4

(TE1)

is

90°

with

respect

to

that

of

the

external

OSC.

Oscillator

Oscilloscope

4-3-4

boy

t

UTS

VRE

1.

ABB

OSC

KY

100k

Q

OIE

UT

1.30kHz/

10Vp-p

(MCD-111

it

CHER

¥

lt

1.09kHz/

10Vp-p

(YEDS-18

CHR)

OF

SE

TPIOSBEY(TE2)KANTS.

2,

4HHA

REL

TP1

O48

Y

(TEL)

EAB

OSC

E

Ott

DX90°

WHSZHAIV4Ot

CT.GAIN)

&S9ETS,

[i]

FE2]

SERVO

PCB

Fig.

4-4

|

VRDS-T1

PARTS

LIST

SECTION

NOTES

@PC

boards

shown

are

viewed

from

parts

side.

@

Parts

marked

with

*

require

longer

delivery

time.

@

The

parts

with

no

reference

number

or

no

parts

number

in

the

exploded

views

are

not

supplied.

@As

regards

the

resistors

and

capacitors,

refer

to

the

circuit

diagrams

contained

in

this

manual.

@

A\

Paris

marked

with

this

sign

are

safety

critical

components.

They

must

be

replaced

with

identical

components

-

refer

to

the

appropriate

parts

list

and

ensure

exact

replacement.

@

Parts

of

[

]

mark

can

be

used

only

with

the

version

designated.

[J]:

JAPAN

(US]:U.S.

A.

[C]:CANADA

[GE]

:GENERAL

EXPORT

TE}:EUROPE

[UK]

:U.

K.

VRDS-T1

(N):Gold

Version

VRDS-T1(B)

:Black

Version

zt

OTUY

AREIBRHORAN

THIET.

OKHORMISMAMNSFODVUET.

BODUOCTH<

KAI.

ODBMICHEOG\

BARUABORW

AD

mISRRLECA.

OREOR,

TVFYU-SRRLTHY

ET.

BUERRESRLT

<ALL

CAMERESERACT

o

BHAT

SRRLUSS

4

7»

TIEOMMERAL

TK

RSI

etme

[J]:

JAPAN

CUS]

:U.S.

A.

[C]:

CANADA

[GE]:GENERAL

EXPORT

[E]:

EUROPE

[UK]

:U.

K.

VRDS-T1

(N)

:Gold

Version

VRDS-T1(B):Bl

ack

Version

VRDS-T1

5

EXPLODED

VIEWS

AND

PARTS

LIST

SHERI

LIN—Y

UA

EXPLODED

VIEW-1

EXPLODED

VIEW-1

|

VRDS-T1

REF.

NO.

PARTS

NO.

DESCRIPTION

REMARKS

1-1

*5801572300

BONNET

(7)

[J,

GE}

VRDS-T1

(ND

*5801572500

BONNET

(7~B)

[US,

C,

GE,

E,

UK}

VRDS-T1

(B)

1-

2

*5801532500

BOLT,

HEXAGON

SOCKET

B

[J,

GE]

VRDS-T1

(N)

*5801539500

BOLT,

HEXAGON

SOCKET

B(BLK)

(US,

C,

GE,

E,

UK]

VRDS-T1(B)

1-

3

*5801532900

COLLAR

1-

4

5332031900

EARTH

TERMINAL

1-

5

*5801572100

CENTER

CHASSIS

ANGLE

(R)

1-

6

*5801598300

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