Teac PD-135 User manual

Table of contents

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TEAC.

SERVICE

MANUAL

Compact

Disc

Player

COMPACT

olise

DIGITAL

AUDIO

Effective;

Octover

1987

5704037300

SPECIFICATIONS

System

Compact

disc

digital

audio

system

AUDIO

CHARACTERISTICS

Frequency

Response

5H2-20kHz,

+

1dB

Harmonic

Distortion

Less

than

0.007%

(1kHz)

S/W

Ratio

More

than

90dB

Wow

and

Flutter

Quartz

precision

Channel

Separation

More

than

80:B

(1kHz)

Output

Voltage

max.

2Vrms

FUNCTIONS

Instant

Program

Selection

Sequential,

with

MUSIC

SKIP

p>

pei

andid<

buttons

Index

Sequential,

with

SEARCH/INDEX

»

Pb

and

SEARCH/INDEX

<<

buttons

(Stop

mode

only)

Forward/back

Forward/back

with

sound

Program

Functions

16

selections

Repeat

All

selections

all

programmed

selections

Reset

Press

STOP

button

Pause

Each

selection

Disc

Loading

Motor

driven

horizontal

loading

DIGITAL

SIGNAL

PROCESSING

Optical

Pickup

3-beam

laser

Error

Correction

CIRC

Sampling

Frequency

44.1kHz

D/A

Conversion

16-bit

linear

Filter

Digital

filter

+

(4-pole

LC

filter)

GENERAL

Power

Source

120V,

BOHz

(U.S.A/CANADA)

220V,

50Hz

(EUROPE)

240V,

50Hz

(AUSTRALIA)

110/220V,

50/60Hz

(GENERAL

EXPORT)

9

Watts

Power

Consumption

Dimensions

(W

x

H

xD)

435

85.5

x

290mm

Weight

3.5kg

FUNCTIONAL

BLOCK

DIAGRAM

wor

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(WN)

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waNaHD

JOULNOD

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SIS

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HOLIMS:

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snoos

NOUDIOD

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2200

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;

Soto

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ed~10

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ah

9019

0

woo

SNI04

WOD

ONIN

WHL

521

gl

1@

a

HOLYSN34NOD

'

to

3SVH

dv

43Sv7

cane)

SAFETY

CERTIFICATION

This

Compact

Disc

Player

is

made

and

tested

to

meet

exacting

safety

standards.

Laser

Diode

Properties

Material;

Ga-Al-As

Wavelength:

755-815nm

(25°C)

Laser

Output:

Continuous

Wave

max.

0.7mW

CAUTION

-

INVISIBLE

LASER

RADIATION

WHEN

OPEN

AND

INTERLOCKS

DEFEATED.

AVOID

EXPOSURE

TO

BEAM.

VORSICHT!

UNSICHTBARE

LASERSTRAHLUNG

TRITT

AUS

WENN

DECKEL

GEOFFNET

UND

WENN

SICHERHEITSVERRIEGELUNG

UBERBRUCKT

IST.

NICHT

DEM

STRAHL

AUSSETZEN!

\ARNING-

QSYNLIG

LASERSTRALNING

NAR

DENNA

DEL

AR

OPPNAD

OCH

SPARR

AR

URKOPPLAD.

STRALEN

AR

FARLKG.

ADVARSEL-

USYNLIG

LASERSTRALING

VED

ABNING.

NAR

SIKKERHEOSAFBRYDERE

ER

UDE

AF

FUNKTION.

UNDGA

UODSAETTELSE

FOR

STRALING.

CLASS

1

LASER

PRODUCT

CAUTION

—

USE

OF

CONTROLS

OR

ADJUSTMENTS

OR

PERFORMANCE

OF

PROCEDURES

OTHER

THAN

THOSE

SPECIFIED

HEREIN

MAY

RESULT

IN

HAZARDOUS

RADIATION

EXPOSURE.

THE

COMPACT

DISC

PLAYER

SHOULD

NOT

BE

ADJUSTED

OR

REPAIRED

BY

ANYONE

EXCEPT

QUALIFIED

SERVICE

PERSONNEL.

LASER

BEAM

RADIATION

SPOT

Optical

Pickup

Properties

Material:

Ga-Al-As

Wavelength:

790“um

Output

Power:

Max.

1.8mW

Radiant

Power:

Max.

8uW(Class_

I)

Laser

Beam

Radiation

CABINET

&

CHASSIS

EXPLODED

VIEW

EXPLODED

VIEW

-l

REF

.NO.

PARTS

NO.

CA

*9A00

765600

*9A0082

2300

CA

*9A00

766300

*9A0082

2900

CA

9A00

765800

9A0082

2500

CA

9A00

765900

9A0082

2600

CA

9A00

766000

9A0082

2700

CA

9A00

765700

9A00822400

CA

9A00

766100

9A0082

2800

CA

*9A00181500

9A00181700

*9A00179200

*9A00179800

*9A00169900

*9A001

70100

*9A00170200

*9A004

16400

*9A0

0442300

*9A00!

70500

*9A00

170600

*57605

18700

AN

*9A001

49600

A

*9A001

82200

*9A00

769700

*9A00182500

*9A00

182600

A

*576

1246800

A

*9A0

04

43300

A

*9A00767400

A

*9A00770100

9A00767500

9A00

769300

9A00769600

9A00770200

9A00769800

*9A00768500

*9A007685

10

*9A00

768700

*9A00768600

*9A00

767100

*9A00766700

*9A00

767000

*9A00171700

*9A00767200

*9A00181

400

*9A00

767300

(US]:U.S.A.

[A}]:AUSTRALIA

[C1:CANADA

DESCRIPTION

REMARKS

ESCUTCHEON

DIAL

ESCUTCHEON

DIAL

[SILVER]

DECORATE

PLATE

DIAL

DECORATE

PLATE

DIAL

[SILVER]

KNOB

EJECT

KNOB

EJECT

[SILVER]

KNOB

A

KNOB

A

[SILVER]

KNOB

B

KNOB

B

[SILVER]

KNOB

C

KNOB

C

[SILVER]

KNOB

POWER

KNOB

POWER

[SILVER]

PLATE

PAD

SWITCH

[GE]

SLIDE

SWITCH

3P

[GE]

COVER

SCREW

PAN

HD.TPG-B

M3X8

PLATE

BOTTOM

LEG

METAL

MOUNT

COVER

CHASSIS

MAIN

[US,C,E,A]

CHASSIS

MAIN

[GE]

SHAFT

CUSHION

RUBBER

SHAFT

BUSHING

[US,C,GE)

BUSHING

[E,A]

LUG

GROUND

[US,E]

MOUNT

PCB

[A]

SHEET

[A]

POWER

POWER

POWER

POWER

CORD

[GE]

CORD

[E]

CORD

[US,C}

CORD

[A]

POWER

POWER

POWER

POWER

TRANS

[US,C]

TRANS

[GE]

TRANS

[€]

TRANS

[AJ

C.

CERAMIC

0.022/50V

[US,E]}

MAIN

PCB

ASSY

[US,C]

MAIN

PCB

ASSY

[GE,E,A]

POWER

SWITCH

PCB

ASSY

CONTROL

PCB

ASSY

SCREW

SCREW

SCREW

SCREW

SCREW

S-TPG

BRZ

M3X8

S-TPG

BRZ

M3X8

S-TPG

BIN

M4xX10

TRANSIT

S-TPG

BRZ

M3X10

SCREW

SCREW

PAN

M3x8

[GE]

S-TPG

BRZ

M3X14

{GE]:GENERAL

EXPORT

[&]:EUROPE

Parts

marked

with

*require

fonger

delivery

time.

MECHANISM

EXPLODED

VIEW

EXPLODED

VIEW

-2

REF

NO.

PARTS

NO.

9A00567000

9A00171900

9A00172000

9A00172100

*9A001

72200

Ul

WN

—

*5

760707700

*9A00172300

9A00172600

*9A00172800

*9A001

73000

COON

D

VW

*9A00

767800

*9A00823

300

13

*9A00

173500

15

*9A00173700

16

*9A00

173800

*9A001

73900

9A00

174000

9A001

74100

9A00174200

9A00174300

9A00174

400

*9A00174500

*9A00

174600

*9A001

74700

*9A00

175300

*9A001

75400

*9A001

75500

*9A001

75600

9A00175700

*9A00175800

*9A00

175900

*9A001

76000

*9A001

76100

*9A001

76200

*9A00

1

76300

9A00823

100

*9A00767900

*9A00768000

*9A00

768

100

*9A00768200

*9A00768300

DESCRIPTION

PICK-UP

ASSY

LEAF

SWITCH

LEAF

SWITCH

MOTOR

CHASSIS

ASSY

GEAR

MOTOR

ASSY

SLIDE

BASE

PICK-UP

ASSY

T

LEVER

LOCK

ASSY

TABLE

LOAD

TABLE

LOAD

[SILVER]

HOLDER

DISK

SET

SCREW

V-CONE

2X4

SCREW

WASHER

PAD

DISK

TURNTABLE

GEAR

PINION

GEAR

PICK-UP

GEAR

LOAD

GEAR

CAM

SCREW

(B

TITE

SEMS)

SCREW

(B

TITE

SEMS)

Z

FLAP DISK

CRAMP

SLIDE

EJECT

LEVER

STOP

LEVER

HOLD

DISK

RIGHT

LEVER

HOLD

DISK

LEFT

SHAFT

PICK-UP

BALL

ROLLER

TABLE

SPRING

LEVER

SPRING

LEVER

SPRING

LEVER

SPRING

PLATE

SPRING

SLIDE

SPRING

LEVER

LOAD

RIGHT

LEFT

STOP

EJECT

LOCK

CD

MECHA

ASSY

86

SCREW

S-TPG

BIN

M2X6

SCREW

BIN

M2.

6X4

SCREW S-TPG

BRZ

M3X6

SCREW

PAN

PCS

M1.7X2.5

SCREW

PAN

PCS

MI.7X2

REMARKS

Z

INCLUDED

ACCESORIES

REF

.NO.

PARTS

NO.

*9A00768800

*9A0078

|

000

*9A00

768900

DESCRIPTION

REMARKS

OWNERS

MANUAL

[C,GE,E,A]

OWNERS

MANUAL

[US]

PLUG

CORD

{US1:U.S.A.

[C]:CANADA

[A]:AUSTRALIA

{GE]:GENERAL

EXPORT

[€]:EUROPE

Parts

marked

with

*require

longer

delivery

time.

ADJUSTMENT

PROCEDURES

CAUTION:

Avoid

eye

exposure

to

invisible

laser

beam

which

is

emitted

from

laser

pickup.

PRECAUTIONS

REGARDING

ADJUSTMENT

e

Adjustment

is

performed

in

the

indicated

order.

e@

When

adjustment

is

made

for

one

item,

check

the

other

items

which

follow.

@

The

laser

pick-up

has

already

been

precisely

adjusted.

Do

not

touch

its

mounting

screws

or

controls.

Laser

power

control

knob

—

Do

not

adjust.

@

When

the

diffraction

grid

is

adjusted,

remove

the

mechanism.

It

is

convenient

to

place

an

insulating

panel

on

top

of

the

chassis

and

then

to

place

the

mechanism

on

top

of

this.

(The

wires

are

connected.)

Insulator

Board

(wood,

plastic

etc.)

®

Refer

to

the

adjustment

diagram

for

the

test

points

and

adjust-

ment

controls.

The

ground

point

for

the

measurement

equipment

is

the

test

point

indicated

as

GND.

REQUIRED

EQUIPMENTS

DC

Voltmeter

Dualtrace

Oscilloscope

Frequency

Counter

Signal

Generator

Plastic

Screwdriver

Diffraction

Grating

Adjustment

Jig

Test

Disc

(SONY:YEDS4)

CHECKING

FOCUS

ERROR

SIGNAL

Checking

the

focus

error

signal

of

the

pick-up

allows

for

an

evalu-

ation

of

the

pick-up.

Be

sure

this

is

carried

out

before

repair.

1.

2.

Turn

on

the

power

and

set

the

unit

to

the

STOP

mode.

Connect

an

oscilloscope

between

test

pin

FE

of

connector

CN7

and

test

pin

GND

(Set

the

time

axis

to

0.5

seconds/

division.)

.

Connect

test

pin

GND

to

the

collector

of

Q125.

4.

Press

the

OPEN/CLOSE

button

and

place

the

test

disk

YEDS4

on

the

table

load.

Press

the

OPEN/CLOSE

button

again.

The

waveform

shown

below

is

displayed

six

times

on

the

oscilloscope

when

the

table

load

closes.

Check

that

the

p-p

voltage

is

about

2.5V

and

that

the

top

and

bottom

of

the

waveform

are

symmetrical.

Repeated

six

times

Hee

c@en

es

i 1

' '

' ' 4

1

1

1

1

1

1

1

1

i

1

4

‘

1 '

i 1

'

‘ t

'

‘

(When

recorded

on

a

memory

scope)

l

'

4

1

|

*p-p

voltage

of

2.5V

*+

and

—

voltage

roughly

same

ADJUSTMENT

PROCEDURES

(continuea)

6.

The

waveform

appears

again

if

the

OPEN/CLOSE

button

is

pressed

again.

This

allows

for

confirmation

to

be

made.

The

pick-up

is

faulty

if

confirmation

cannot

be

made.

SETTING

OF

INITIAL

POSITION

OF

VOLUME

The

variable

resistors

are

set

to

the

following

initial

positions.

P102

(FOCUS

OFFSET)

.........

Mechanica!

center

P103

(FOCUS

GAIN)

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

Mechanical

center

P104

(TRACKING

GAIN)

.........

Mechanical

center

P105

(TRACKING

OFFSET)

...Mechanical

center

P106

(E/F

BALANCE)

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

Mechanical

center

FREE

RUN

FREQUENCY

ADJUSTMENT

1.

Turn

on

the

power

and

set

the

unit

to

the

STOP

mode.

2.

Connect

the

frequency

counter

between

test

pins

VCO

and

GND

(use

probes).

3.

Short

test

pins

EFM

and

GND.

4.

Rotate

the

core

of

the

PLL

coil

(T101)

with

a

plastic

screw-

driver

so

that

the

frequency

counter

indicates

4.3218+

10KHz.

FOCUS

OFFSET

ADJUSTMENT

1.

Turn

on

the

power

and

set

the

unit

to

the

STOP

mode.

2.

Short

test

pins

FON

and

GND,

and

connect

a

DC

voltmeter

between

test

pins

FC

and

GND.

3.

Unload

the

test

disc

and

adjust

P102

so

that

indication

of

the

DC

voltmeter

is

OV+50mV.

NOTE:

This

adjustment

should

be

made

again

after

the

adjustment

of

Tracking

Gain.

TRACKING

OFFSET

ADJUSTMENT

1..

Turn

on

the

power

and

set

the

unit

to

the

STOP

mode.

2.

Short

test

pins

TON

and

GND

and

connect

the

DC

voltmeter

between

test

pins

TC

and

GND.

;

3.

Unload

the

test

disc

and

adjust

P105

so

that

indication

of

the

DC

voltmeter

is

OV+50mV.

NOTE:

This

adjustment

should

be

made

again

after

the

adjustment

of

Tracking

Gain.

ADJUSTMENT

OF

DIFFRACTION

GRID

The

adjustment

cannot

be

made

with

this

unit.

When

the

adjust-

ment

is

necessary,

replace

the

mechanism

including

laser

pick-up

with

a

new

one,

or

replace

the

pick-up

with

an

already

adjusted

one

(forwarded

by

us).

|

NOTE:

When

the

pick-up

is

replaced,

it

must

be

replaced

as

a

unit.

Never

replace

only

laser

didde.

ADJUSTMENT

OF

PICK-UP

ANGLE

1.

Remove

the

table

load.

2.

Directly

mount

test

disc

YEDS4

on

the

turntable.

3.

Turn

on

the

power

and

play

back

the

fourth

selection.

4.

Connect

the

oscilloscope

between

test

pin

HF

and

test

pin

GND.

Monitor

the

waveform

of

HF

and

rotate

the

angle

adjustment

screw

so

that

the

waveform

is

at

its

maximum.

Angle

Adjustment

Screw

E-F

BALANCE

ADJUSTMENT

1.

Short

test

pins

DO

and

E3,

and

connect

an

oscilloscope

and

a

DC

voltmeter

to

test

pins

TE

and

GND

through

the

low-pass

filter.

2.

Mount

test

disc

YEDS4

and

set

the

player

to

the

playback

mode.

Load

+5V

to

test

pin

TON

and

turn

off

the

tracking

servo.

3.

Adjust

P106

so

that

indication

of

the

DC

voltmeter

is

within

+5mvV.