Panasonic SL-BD20D Service Manual - Page 2

SL-BD20

Recommended

load

impedance:

Compliance

(dynamic):

Stylus

pressure

range:

Weight

Replacement

stylus

■

GENERAL

Power

supply:

47

kO

-

100

kO

12X1

0

-6

cm/dyne

at

100

Hz

1.25±0.25g

(12.5±2.5mN)

6

g

(cartridge

only)

EPS-24CS

For

U.S.A.

and

Canada:

AC

120V,

60

Hz

For

United

Kingdom

and

Australia:

AC

240V,

50

Hz

For

Continental

Europe:

AC

220V,

50

Hz

For

Others:

AC

110-127/220-240V,

50/60

Hz

■

CONTENTS

Power

consumption

Dimensions

(WXHXD)

Weight

For

(M),

(MC)

area

2.5W

For

(XA)

area

2W

For

Others:

1.5W

430X93X375

mm

(16

-15/16"X3

-21/32"X14-3/4")

When

dust

cover

is

open:

430X360X410

mm

(16

-15/16"X14

-5/32"X16-1/8")

3.6

kg

(7.9

lb.)

Specifications

are

subject

to

change

without

notice

for

further

improvement.

Weight

and

dimensions

shown

are

approximate.

Page

Page

SAFETY

PRECAUTION

2

CIRCUIT

BOARD

AND

WIRING

CONNECTION

DIAGRAM

..

8

LOCATION

OF

CONTROLS

3

TROUBLESHOOTING

9

DISASSEMBLY

INSTRUCTIONS

3

-

5

EXPLODED

VIEW

10

--12

MEASUREMENTS

AND

ADJUSTMENTS

6

REPLACEMENT

PARTS

LIST

12,

13

SCHEMATIC

DIAGRAM

7

PACKING

14

■

SAFETY

PRECAUTION

(This

"safety

precaution"

is

applied

only

in

U.S.A.)

1.

Before

servicing,

unplug

the

power

cord

to

prevent

an

electric

shock.

2.

When

replacing

parts,

use

only

manufacturer's

recommended

components

for

safety.

3.

Check

the

condition

of

the

power

cord.

Replace

if

wear

or

damage

is

evident.

4.

After

servicing,

be

sure

to

restore

the

lead

dress,

insulation

barriers,

insulation

papers,

shields,

etc.

5.

Before

returning

the

serviced

equipment

to

the

customer,

be

sure

to

make

the

following

insulation

resistance

test

to

prevent

the

customer

from

being

exposed

to

a

shock

hazard.

•

INSULATION

RESISTANCE

TEST

1.

Unplug

the

power

cord

,and

short

the

two

prongs

of

the

plug

with

a

jumper

wire.

2.

Turn

on

the

power

switch.

3.

Measure

the

resistance

value

with

ohmmeter

between

the

jumpered

AC

plug

and

each

exposed

metal

cabinet

part,

such

as

screwheads,

antenna,

control

shafts,

handle

brackets,

etc.

Equipment

with

antenna

terminals

should

read

between

3MS2

and

5.2M12

to

all

exposed

parts.

(Fig.

A)

Equipment

without

antenna

terminals

should

read

approximately

infinity

to

all

exposed

parts.

(Fig.

B)

Note:

Some

.

exposed

parts

may

be

isolated

from

the

chassis

by

design.

These

will

read

infinity.

Antenna

terminal

Exposed

metal

part

Exposed

metal

part

Ohmmeter

Ohmmeter

(Fig,A)

(Fig.

B)

Resistance

=

3MQ—5.2

MS?

Resistance

=

Approx

OO

4.

If

the

measurement

is

outside

the

specified

limits,

there

is

a

possibil

ity

of

a

shock

hazard.

The

equipment

should

be

repaired

and

rechecked

before

it

is

returned

to

the

customer.

—2—

Panasonic SL-BD20D Service Manual - Page 2

Contents, Safety, Precaution

Page 2 highlights