Technics SL-BD22D Manual de usuario

ORDER

NO.

AD9507191C2

Service

Manual

FSG

servo

Automtic

Turntable

System

the

standard

mark

for

plug-in-connector

system,

Products

Automatic

Turntable

System

[™P

—

SL-BD22D

Colour

(K)--++

Black

Type

Area

Suffix

for

Area

Colour

Model

No.

(E)

Eurpoe.

(EB)

Geart

Britain.

(K)

(EG)

Germany

and

Italy.

Carrying

this

mark

are

interchangeable

and

compatible

with

each

other

SPECIFICATIONS

TURNTABLE

SECTION

Automatic

turntable

Auto-return

Auto-stop

Drive

method:

Belt

drive

Motor:

motor

Drive

control

method:

servo

control

Turntable

platter:

Aluminum

die-cast

Diameter

312mm

Turntable

speeds:

33-1/3

rimin

and

r/min

Wow

and

flutter:

0.045%

WRMS

(JIS

C5521)

+0.06%

Weight

zero

peak

(IEC

98A

weighted)

Rumble:

—70

DIN-B

(IEC

98A

weighted)

TONEARM

SECTION

Type:

Static-balanced

straight

tonearm

Plug-in-connector

cartridge

system

Overhang:

15mm

Effective

length:

230

Tracking

error

angle:

Within

2°32’

outer

groove

disc

Within

0°32"

inner

groove

disc

Applicable

cartridge

weight:

CARTRIDGE

SECTION

Type:

Moving

magnet

stereo

cartridge

Frequer~,;

response:

kHz

Output

voltage:

2.5

kHz,

cm/s.

zero

peak

lateral

velocity

Channel

separation:

kHz

Channel

balance:

Within

kHz

Recommended

load

impedance:

kQ~

100

Compliance

(dynamic):

10°

*cm/dyne

100

Stylus

pressure

range:

1.25+0.25g

Weight:

6 g

(cartridge

only)

Replacement

stylus:

EPS-34CS

GENERAL

Power

supply:

For

(EB)

area’

230V

240V,

50/60

For

(E,

EG)

area:

230V,

50/60

Power

consumption:

Dimensions:

(WxHxD)

430x93X375

Maximum

height

when

dust

cover

open

430360410

Weight:

3.6

(7.9

Ib.)

Specifications

are

subject

change

without

notice.

Weight

and

dimensions

are

approximate.

AX\WARNING

This

service

information

designed

for

experienced

repair

technicians

only

and

not

designed

for

use

the

general

public.

does

not

contain

warnings

cautions

advise

non-technical

individuals

potential

dangers

attempting

service

product.

Products

powered

electricity

should

serviced

repaired

only

experienced

professional

technicians.

Any

altempt

service

repair

the

product

products

dealt

with

this

service

information

anyone

else

could

result

serious

injury

death

Technics

CONTENTS

SAFETY

PRECAUTION

----

LOCATION

CONTROLS

DISASSEMBLY

INSTRUCTIONS

MEASUREMENTS

AND

ADJUSTMENTS

TROUBLESHOOTING

BLOCK

DIAGRAM

CIRCUIT

BOARD

AND

WIRING

CONNECTION

DIAGRAM

EXPLODED

VIEW

REPLACEMENT

PARTS

LIST

SCHEMATIC

DIAGRAM

“10

PACKING

SAFETY

PRECAUTION

cthis

‘safety

precaution”

applied

only

U.S.A.)

Before

servicing,

unplug

the

power

cord

prevent

electric

shock.

When

replacing

parts,

use

only

manufacturer's

recommended

components

for

safety.

Check

the

condition

the

power

cord.

Replace

wear

damage

evident.

After

servicing,

sure

restore

the

lead

dress,

insulation

barriers,

insulation

papers,

shields,

etc.

Before

returning

the

serviced

equipment

the

customer,

sure

make

the

following

insulation

resistance

test

prevent

the

customer

from

being

exposed

shock

hazard.

INSULATION

RESISTANCE

TEST

Unplug

the

power

cord

and

short

the

two

prongs

the

plug

with

jumper

wire.

Turn

the

power

switch,

Measure

the

resistance

value

with

ohmmeter

between

the

jumpered

plug

and

each

exposed

metal

cabinet

part,

such

screwheads,

antenna,

control

shafts,

handle

brackets,

etc.

Equipment

with

antenna

terminals

should

read

between

3MQ

and

5.2MQ.

all

exposed

parts.

(Fig.

Equipment

without

antenna

terminals

should

read

approximately

infinity

all

exposed

parts.

(Fig.

Note:

Some

exposed

parts

may

isolated

from

the

chassis

design.

These

will

read

infinity.

Antenna

terminal

Exposed

metal

part

Ohmmeter

Onmmeter

(Fig.

Resistance

3MQ—5.2MQ

Resistance

Approx

the

measurement

outside

the

specified

limits,

there

possibility

shock

hazard.

The

equipment

should

repaired

and

rechecked

before

returned

the

customer

ACCESSORIES

Note:

Configuration

power

supply

cord

differs

according

area.

45-rpm

adaptor

(1)

Turntable

mat

(1)

power

supply

cord

(1)

Stereo

connection

cable

(1)

Ground

wire

(1)

(SFWE212-01)

(SFTGB93M02EM)

yaorss

(E,

EG)

(SFDHBD2N01)

(SJPB7M)

LOCATION

CONTROLS

45-rpm

adaptor

Turntable

mat

Strobe

lines

pilot

lamp

Pitch

control

(PITCH

ADJ)

This

unit's

strobe

illuminator

operates

the

line

frequency

which

generally

has

0.2%

fluctuation.

This

fluctuation,

when

present,

may

make

the

strobe

pattern

appear

change.

However,

actual

platter

speed

does

not

change,

because

the

motor

notaffected

power

line

frequency.

Notes:

*Do

not

try

clean

the

dust

cover

while

disc

playing,

because

static

electricity

might

cause

the

tonearm

rise.

{cin

Tonearm

©The

unit

the

standby

condition

when

the

power

supply

cord

Arm

rest

connected.

The

primary

circuit

always

“live”

long

the

power

cord

connected

Set

to”

stop

electrical

outlet.

the

play

temporarily.

Set

to“

resume

the

play.

Stop

switch

(STOP)

Press

stop

the

play.

Strobe-illuminator/

(CUEING)

Cueing

control

Setto“Z”,

Speed

selector

(SPEED)

Set

disc’s

speed.

Place

disc

the

turntable

mat.

Fora

17-cm

(7”)

(large

center

hole)

disc

Remove

the

stylus

protector.

(The

tape

side

cartridge

prevents

the

stylus

assembly

from

shaking

loose

during

shipment.)

Move

the

desired

position.

(The

strobe-illuminator/pilot

lamp

will

light

and

the

platter

will

start

turning.)

Cartridge

(TaD)

the

standard

mark

for

the

“P-mount”

plug-in

connector

system.

Products

carrying

this

mark

are

inter-

changeable

and

compatible

with

each

other.

Setto"z”.

(Play

will

start.)

When

play

ends

The

tonearm

will

automatically

return

the

arm

rest

(the

automatic

return

feature).

Rotation

will

stop.

[

After

use

Attach

the

stylus

protector.

Protector

DISASSEMBLY

INSTRUCTIONS

How

remove

the

cartridge

Ref.

How

remove

the

turntable

platter

Procedure

Remove

the

setscrew

Pull

out

the

cartridge,

taking

care

that

your

hand does

not

touch

the

stylus

tip.

Procedure

Open

the

dust

cover

and

remove

the

turntable

mat.

Remove

the

belt.

Lift

the

turntable

platter.

Dust

cover

Turntable

Soft

cloth

ane

How

remove

the

stylus

Turntable

Platter

Procedure

«putt

out

the

stylus,

taking

care

not

touch

the

stylus

tip

Cartridge

;

—

Stylus

Ret.

Ref.

How

remove

the

bottom

board

How

remove

the

cueing

knob

Procedure

Turn

over

the

unit

soft

cloth.

Procedure

Remove

the

setscrew@.

304

Remove

the

setscrews

3e4aes

Bracket

“~

Cueing

knob

Ref.

“6

Howto

remove

the

stop

switch

knob

How

remove

the

drive

P.C.B.

Precseure

Remove

the

setscrew

gata

Remove

the

setscrews

(@~

@).

Remove

the

base

(with

knob)

the

Remove

the

drive

P.C.B.

the

direction

the

arrows

(@,

®).

direction

the

arrow.

Release

the

claws.

Note:

When

attaching

the

stop

knob,

not

forget

attach

the

spring

Ref.

How

remove

the

mechanism

plate

Procedure

Shield

plate

30408

Remove

the

setscrews

(0~0).

Lift

the

mechanism

plate.

Mechanism

plate

Ret.

How

remove

the

tonearm

and

fixing

plate

Procedure

3949809

Unsolder

the

lead

wires

from

the

phono

terminal

Remove

the

setscrew

and

spring.

remove

the

tonearm,

remove

the

setscrews

(0.0).

remove

the

fixing

plate,

remove

the

setscrews

(Q,

@).

lead

wiring

method

White

Blue.

Red

Green

Black...

channel

(+)

terminal

channel

(—)

terminal

-R

channel

(+)

terminal

channel

(—)

terminal

Ground

terminal

fixing

plate

Ref.

How

remove

the

cueing

cam

Note:

the

cueing

time

the

tonearm

becomes

too

short,

Procedure

39408010

Push

the

with

driver.

Remove

the

and

spring.

Remove

the

cueing

cam.

the

cueing

cam

replaced,

apply

silicon

oil

(Part

No.

$ZZOL11)

according

the

following

procedure.

Remove

the

cueing

cam.

Apply

silicon

oil

the

cueing

cam

and

oil

tank.

Cueing

cam

—_—c=

Apply

silicon

oil

element

How

remove

the

magnetic

resistor

Note:

the

magnetic

resistor

element

has

been

Procedure

304011

Remove

the

motor

assembly

the

direction

the

arrow.

CONNECTIONS

replaced,

observe

the

following

mounting

precaution.

The

magnetic

resistor

element

supplied

with

the

center

lead

bent.

sure

the

seat

the

bent

lead

flush

the

P.C.B.

This

will

ensure

the

proper

clearance

(0.8+0.2

mm)

between

the

magnet

and

the

magnetic

resistor

element

shown

Unsolder

the

lead

wires

from

the

magnetic

resistor

P.C.B.

Release

the

claw

and

pull

out

the

P.C.B.

Unsolder

the

terminals

the

magnetic

resistor

below.

element.

Magnetic

6194

Pull

out

resistor

0.840.2

element

Magnet

1.5mm

Holder

wel

Holder

PCB.

power

supply

cord

(included)

household

outlet

amplifier

—Os

GND

PHONO

o-000

ord

@!000

(PNL)IGND)

Ground

wire

(included)

foba

Amplifier

the

ground

“hum”

NOt

Connected.

may

heard

Stereo

connection

cable

(included)

MEASUREMENTS

AND

ADJUSTMENTS

ARM-LIFT

HEIGHT

ADJUSTMENT

The

arm-lift

height

(distance

between

the

stylus

tip

and

the

(3/16"

9/32")

record

surface

when

the

cueing

control

the

"2"

position)

has

been

adjusted

the

factory

approximately

(3/16"—9/32").

the

clearance

too

narrow

too

wide,

turn

the

adjustment

screw

clockwise

counterclockwise.

Clockwise

rotation

—distance

between

the

record

and

stylus

tip

decreased.

Counterclockwise

rotation

—distance

between

the

record

and

stylus

tip

increased.

Adjustment

AUTOMATIC

RETURN

ADJUSTMENT

Clamp

the

tonearm

the

arm

rest

Remove

the

rubber

cap.

Turn

the

screw

with

screwdriver,

clockwise

counter-

clockwise

necessary.

the

tonearm

tends

return

the

arm

rest

before

the

play

has

finished,

—turn

counterclockwise.

the

tonearm

fails

return

after

the

final

groove,

—turn

clockwise.

Auto-return,

adjustment

screw

SPEED

ADJUSTMENT

(PITCH

CONTROL)

There

are

strobe-lines

cut

this

turntable

platter

indicate

correct

rotational

speed

45rpm

the

strobe-line

appears

moving

the

turntable

33-1/3rpm

SoH

rotates,

adjust

while

playing

record.

45rpm

60Hz

Set

the

speed

selector

the

speed

adjusted

33-1/3¢pm

Push

the

power

switch.

The

strobe-illuminator/pilot

lamp

will

light

and

the

platter

will

rotate.

Watch

the

dot

pattern

the

side

the

platter.

Turn

the

pitch

control

one

way

the

other

until

the

dots

appear

stand

still.

This

the

correct

speed

Turning

the

pitch

control

the

“+”

direction

increases

the

speed.

Turning

the

pitch

control

the

“—"

direction

decreases

the

speed.

The

strobe-line

for

Hz.

33-1/3

rpm

seems

stationary

ROTATING

SPEED

When

the

turntable

drive/control

(IC

101)

the

variable

resistors

(VR101,

102)

are

changed,

the

rated

rotation

not

reached

even

when

the

pitch

control

knob

turned,

adjust

the

rotating

speed

the

following

procedure.

Set the

speed

selector

switch

the

“45”

position.

Turn

VR101

with

screwdriver

from

the

bottom

the

set

the

rated

rotation

(45

rpm)

and

check

the

rotation

with

strobe

while

adjusting

the

speed.

Set

the

speed

selector

switch

the

“33”

position.

Turn

VR102

with

screwdriver

from

the

bottom

the

set

the

rated

rotation

(33-1/3

rpm)

and

check

the

rotation

with

strobe

while

adjusting

the

speed.

VR102

Note:

sure

make

the

adjustment

for

rpm

first.

VR101

(33-1/3

rpm),

(45

rpm)

TROUBLESHOOTING

sound

‘comes

out.

Check

the

resistance

output

plug

(left

and

right

channels).

Strobe

LED

does

not

indicate.

Turntable

does

not

rotate.

few

ohms

Check

shorted

circuit

plug

lug

terminal

connector

cartridge.

(open)

Check

opened

circuit

plug

lug

terminal

connector

cartridge

Check

sequently

connected

amplifier

check

amplifier.

Strobe

LED

drive

circuit

Wavetorm

collector

Q201

Lis

8.2ms

Connect

the

power

plug

power

plug

connected

wall

achat,

ese

-—

Belt

set

over

the

turntable

capstan?

Set

the

belt

correctly.

Q201,

202

(Drive

transistor)

0201~0207

R201~R205

defective

——_—_—_—<__—_—_

(Power

transformer)

(Power

switch)

01~D4

(Rectifier

}defective

diode)

IC1

(Regulator

IC)

1C101

(Drive

IC)

Power

source

circuit

14V

between

FC2

terminals

and

©.

voltage

regulator

(IC1)

@12v

@6v

@ov

voltage

terminal

1C101

(3V).

Drive

circuit

1€101

(Drive

IC)

*DC

voltage

drive

transistor

(0101)

0101

(Drive

Base

Collector

Emitter

transistor)

defective

rom

1.5V

6.3V

Motor

rpm

1.6V

5.2V

R108,109

(Resistor)

Unstable

rotation

Turntable

rotates

too

fast

does

not

rotate.

amplifier

circuit

Waveform

terminal

CN101

Z601

(Magnetic

resistor

element)

1€101

(Control

IC)

R101~R103

C101~C103

Motor

Waveform

terminal

IC101

1.4V

rpm

3.3ms

rpm

2.5ms

33pm

3.3ms

rpm

—-2.5ms

eas

Control

circuit

Waveform

terminal

@®

10101

FUP

rpm

3.3ms

rpm_—_2.5ms,

Waveform

terminal

1C101

rpm

3.3ms

45pm

.2.5ms

Waveform

terminal

CN101

3+0.8V

At=S%

than

(0.17ms)

120mV

Refer

precaution

page

3.3ms

Terminal

guide

IC's,

transistors

and

diodes

SVIBA6301

AN78L06

SVDBRSSO5SA

SVDBRS505SB

input

fw.

2801423

2SA1309

Uf,

SVD1SR35200V

2801383

SVD1SS254

Caution!

and

LS!

are

sensitive

static

electricity.

Secondary

trouble

can

prevented

taking

care

during

repair.

Cover

the

parts

boxes

made

plastics

with

aluminum

foil.

Ground

the

soldering

iron.

Put

conductive

mat

the

work

table.

not

touch

the

legs

LSI

with

the

fingers

directly.

—g9-—

'C101

(Control

IC)

defective

the

reading

then

Z601

the

reading

1.3kQ,

then

Conduction

check

CN101

terminal

and

©.

detective.

and

©.

motor

defective.

SCHEMATIC

DIAGRAM

For

(EB)

area:

‘AC

230V

240V,

50/60

For

(E,

EG)

area:

‘AC

230V,

50/60

art

Sos

1oDoe

CBee

COIS

Gan

sw!

ASram

23m6

Ritererne!

sna

hen

tone

eon

saosin

238

Notes:

Note:

Power

switch

“on”

position.

Note

$101:

Speed

selector

switch

“33”

position.

The

values

are

the

reference

voltage

for

the

turntable

rotation

(33

rpm)

this

unit,

measured

voltmeter

(high

impedance)

the

basis

(E.

EG)

(€8]

chassis.

So,

some

error

might

included

depending

the

internal

impedance

the

measuring

instrument

and

the

unit

measured.

281383

28D1423

“(

);

voltage

rpm.

Note

Important

safety

notice:

Components

identified

mark

have

special

characteristics

important

for

safety.

When

replacing

any

these

components,

use

only

manufacturer's

specified

parts.

R204

ERDS2TJ332

(3.3K)

ERDS2TJ562

(5.6K)

VR101

the

rpm

speed

adjustment

variable

resistor.

VR102

the

33-1/3

rpm

speed

adjustment

variable

resistor.

This

schematic

diagram

may

modified

any

time

with

the

development

new

technology.

OUTPUT

The

supply

part

number

described

alone

the

replacement

parts.

aeK

Production

Part

No.

Supply

Part

No.

Green

Q101

(E.

EG)

2S8C1383

2SC01383-QRS

Q101

(EB)

2801423

2SD1423QRS,

(+)

‘

ane

Q201,

202

2SA1309

2SA1309A-R

Di-~4

SVD1SR35200V

SVD1SR35200A

Black

GND

D201,

202

SVD1SR35200V

SVD1SR35200A

D203

SVD1SS254

1SS254TA

D206,

207

SVD1SS254

1SS254TA

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