Panasonic RX-FS50 Manuale utente

ORDER

NO.

MDg806117A2

Service

Manual

Radio

Cassette

RX-FS50

Stereo

Radio

Cassette

Recorder

Colour

(K)

scere-

Black

Type

Areas

(EE)

----

CLS.

Tape

Deck:

SG20

Mechanism

Series

Please

file

and

use

this

manual

together

with

the

service

manual

for

Model

No.

RX-FS50

(GU),

Order

No.

MD9804079C3.

Note:

This

service

manual

provided

indicate

the

differences

between

the

original

model

No.

RX-FS50

(GU)

and

the

subsequent

model

No.

RX-FS50

(EE).

Specifications

RX-FS50

(GU)

RX-FS50

(EE)

Intermediate

frequency:

Intermediate

frequency:

10.7MHz

(MW/SW1/SW2)

455kHz

(MW/SW1/SW2)

459kHz

Measurements

and

Adjustments

RX-FS50

(GU)

Service

Manual

pages

11.

RX-FS50

(GU)

RX-FS50

(EE)

[

Tuner

Section]

[

Tuner

Section]

AM-IF

ALIGNMENT:

AM-IF

ALIGNMENT:

Frequency

455kHz

(T2)

Frequency

A59kHz

(T2)

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

attempt

service

repair

the

product

products

dealt

with

this

service

information

anyone

else

could

result

serious

injury

death.

Panasonic

1998

Matsushita

Electric

Industrial

Co.,

Ltd.

All

rights

reserved.

Unauthorized

copying

and

distribution

violation

law.

RX-FS50

Schematic

Diagram

TUNER

CIRCUIT

[EE]

MAIN

ciRCuIT

<RX-FS50

(GU)

Service

Manual

page

13.>

<RX-FS50

(GU)

Service

Manual

page

15.>

Addition

TELESCOPIC

ANTENNA

Q380

2SC2001KTA

SWITCHING

Printed

Circuit

Board

Diagram

TUNER

P.C.B.

EE]

Main

P.c.B.

<RX-FS50

(GU)

Service

Manual

page

17.>

<RX-FS50

(GU)

Service

Manual

page

18.>

Deletion

MODE

iBP

Addition

RX-FS50

Replacement

Parts

List

Note:

Mentioned

this

parts

list

only

those

different

from

Model

No.

RX-FS50

(GU)

and

the

subsequent

model

No.

RX-FS50

(EE).

Part

Number

Ref.

No.

Part

Name

Description

Remarks

RX-FS50

(GU)

RX-FS50

(EE)

SWITCH(ES)

RSS2D32ZA-H

RSS2D32ZA-A

SW,

SELECTOR

CHANGE

RESISTOR,

1/4W

150Q

CHANGE

R117

ERDS2FJ1R0

ERD2FCJ4R7

RESISTOR,

1/4W

4.79

CHANGE

Taiao—[enosaniina

——]

pateron

ERDS2FU1RO

—————

RESISTOR,

1/4W

4.79

CHANGE

Frew

[enosorniea

————

R250

ERDS2FJ1RO0

ERD2FCJ4R7

RESISTOR,

1/4W

4.7

CHANGE

R311

ERDS2FJ102

ERDS2FJ391

RESISTOR,

1/4W

390

CHANGE

CAPACITORS

RESISTERS

R16

ERDS2FJ181

ERDS2FJ151

———______——

ECBT1H102KB5

CAPACITOR,

50V.

1000PF

ADDITION

ECBT1H1R5MC5

ECBT1H2R2KC5

CAPACITOR,

50V—s-2.2PF

CHANGE

C901-04

ECKR1H103ZF5

ECKR2H103ZF5

CAPACITOR,

500V

0.01uF

CHANGE

CABINET

PARTS

REKGXFS50GUK

RFKGXFS50EEK

FRONT

CABINET

ASS’Y

CHANGE

RKWX0122-Q

RKWX0122B-Q

DIAL

PANEL

CHANGE

Pe.

RFKHXFS50GUK

REKHXFSSOEEK

BACK

CABINET

ASS'Y

CHANGE

PACKING

MATERIAL

[

RPGX0467

RPGX0497

GIFT

BOX

CHANGE

ACCESSORIES

RQT4425-B

RQT4404-G

O/|

BOOK

CHANGE

RQT4426-R

ORDER

NO.

MD9804079C3

Service

Manual

Radio

Cassette

Stereo

Radio

Cassette

Recorder

RX-

Colour

(K)

...

Black

Type

Areas

(GU)

cecse:

Asia,

Latin

America,

Middle

East

and

Africa.

(G1

apenas

Saudi

Arabia,

Kuwait,

Singapore,

Malaysia.

Tape

Deck:

SG20

Mechanism

Series

Specifications

Radio:

Frequency

range:

General:

-108

MHz

Power

requirement:

530

1605

kHz

110

127

220

-240

50/60

2.3

—

7.0

MHz

Power

consumption:

SWw2

7.0

—

22.0

MHz

Battery

V(Six

R20/

LR20,

UM-1

batteries)

Intermediate

frequency:

®@

not

use

rechargeable

type

batteries.

10.7

MHz

Power

output:

(30

2)...

PMPO

AM(MW/SW1/SW2)

455

kHz

Speakers:

Sensitivity:

Woofer

Dynamic

speaker,6Q

4.5

wV/

output

(-3dB

Limit

Sens)

Tweeter

1.5

Ceramic

speaker

125.9

wV/

output

(Max

Sens)

Output:

Headphones;

32Q,

63.5

swi

63.1

2V/

output

(Max

Sens)

Dimensions

D):

480

171

160mm

Sw2

4.7

uV/

output

(Max

Sens)

—

Weight:

2.8

without

batteries

‘Tape

recorder:

Track

system:

track

channei

stereo

Recording

system:

bias

Erasing

system:

Magnet

—_

Note:

Design

and

specifications

are

subject

change

without

notice.

Monitor

system:

Variable

sound

monitor

Weight

and

dimensions

are

approximate.

Frequency

range

Normal:

70-13000

Tape

speed:

4.8

cm/s

A.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

attempt

service

repair

the

product

products

dealt

with

this

service

information

anyone

else

could

result

serious

injury

death.

Matsushita

Electric

Industrial

Co.,

Ltd.

—

All

rights

reserved.

Unauthorized

copying

and

anasonic

distribution

violation

law.

Operation

Checks

and

Main

Component

Replacement

Procedures........

Measurements

and

Adjustment

........scsssscosscsesecrerses

Type

Illustration

IC’s,

Transistors

and

Diodes

...........

Schematic

Diagram

............sssccccsesecersessesevesscessecsasees

12~

Wiring

Connection

Diagrann

.........0:csssecsscsesscsseasseesenses

Accessories

BAG

Powel

COM

caesiivisaccaascdserdvinsssiesseavk

waketoreavensteiaaeiie

pe.

[RJA0004]...For

(GU)

area.

[RJA0019-2K]...For

(GC)

area.

CDs

aicst

Shah

ley

taalee

sta

Sisal

ealanasatatee

aot

cos

lee

Tuning

knob

acta

aosceicutes

tesh

catia

Tea

Fine

tuning

knob

sacict

Beast

asa

eae

ees

Band

selector

knob

4)...

vussseseese

Stereo

indicator

SEE

Cre

Urea

eee

Selector

knob

ean

ala

act

land

Orcmostneneeol

ids

Tone

knob

caste

Laced

ace

eras

cra

arn

oat

ace

Volume

knob

CS)

ihecteint

teint

tech

ete

Built-in

microphone

Printed

Circuit

Board

Diagram

vonusnsidbecansigsvanscedsanoecteces

17,18

Cabinet

Parts

Location

........cscsccsssssssssccescsssscensescreccereres

Replacement

Parts

List

(Cabinet)

..........ccccccsceseseeccane

Mechanism

Parts

Location

........ciccscicsscesssesccesssecscesserseaens

Replacement

Parts

List

(Mechanism)

.....cccccsessccccrseeses

Replacement

Parts

List

(Electrical)

..........ccscccssesss

21,

PECANS

-cccsysiasetetsasasvdcusstanseaiguvnnsennsadecaecesccstesavess

Rvavcanciecs

Replacement

Parts

List

(Accessories&

Packing)

..........

power

plug

adaptor

weidde

cic

nstanhes

sosslsiEye

cess

Fess

ensecereeree

ipe.

[RJP1SG02-H]...For

(GU)

area.

[RJP1$G04-H]...For

(GC)

area.

aeseece

Meese

mode/Beat

proof

(BP)

selector

knob

arcsec

tacit

tet

Headphones

jack

(¢3.5,

329)

Cath

ett

eee

Record(@)

button

Lay

sats

cia

aiden

sbcaeccsrsaiuagesqhnSentieea

heleedaneceated

Playback(<1)

button

recite

ieyieas

lacie

oaePce

toed

Bice

Reverse(»)

button

UL)

AORN

ERT

PON

renee

ent

CATS

Cue

(a4)

button

(ee

ace

ieee

Stop/eject(@/

a):

button

eel

nae

sedete

cen

Sates

tesa

euatee

Raise

foal

aul

adane

seco

Pause(is)

button

RX-FS50

Operation

Checks

and

Component

Replacement

Procedures

This

section

describes

procedures

for

checking

the

operation

the

major

printed

circuit

hoards

and

replacing

the

main

components.

For

reassembly

after

operation

checks

replacement,

reverse

the

respective

procedures.

Special

reassembly

procedures

are

described

only

when

required.

Select

item

from

the

following

index

when

checks

replacement

are

required.

Refer

the

parts

No.

the

page

“Main

Component

Replacement

Procedures”

necessary.

@Conients

Checking

Procedures

for

each

P.C.B.

Page.

Checking

for

the

tuner

P.C.B..

- o

eke

ele

klk

tle

3,4.

4,5.

Checking

for

the

main

P.C.B..*

oo oe oe

ee ee

Main

Component

Replacement

Procedures

Replacement

for

the

pinch

roller

ass'y,

erase

head

and

rec/play

head.

°°.

Replacement

for

the

motor

ass'y,

main

belt

and

fast

forward

beli.-

- +

=»

Replacement

for

ihe

speakers

(Tweeter).

- *

ee eo

° e

e o

* °

2 >

@ e e

Replacement

for

the

cassetie

lid

ass'y.

«5

2 ©

2 2

Replacement

for

the

handle.>

«+

* *

eee

ee oo

° ° e * e

* &

° e ®

° e

Point

“O”

Adjustment:

Measure

for

Tape

Trouble

«©

° +

Checking

Procedures

for

each

P.C.B.

Checking

for

the

tuner

P.C.B.

Press

the

stop/eject

bution,

and

ihen

open

the

cassette

lid

ass'y.

Remove

the

connector.

Cassette

lid

ass'y

Remove

the

front

cabinet

ass'y.

Remove

the

battery

cover.

RXA-FS50

Checking

for

the

main

P.C.B.

Ramoverthe

jeadwiks

the

Giga

the

item

checking

from

groove.

‘,

procedure

for

each

P.C.B.

pages

and

Remove

the

conneciors.

Connector

(CF301)

Connector

(CP302)

Lead

wire

wespea

Pull

out

the

tuner

P.C.B..

mode

knob

Volume

knob

Remove

the

Tone

knob

Selector

knob

knobs.

Remove

the

dial

chassis.

Release

the

claws.

(Take

care:

not

damage

the

claws.)

Check

the

tuner

P.C.B.

as.

shown

below.

Main

P.C:.B.

Remove

the

gear.

Tuner

P.C.B.

Conneci

the

connectors

(CP301,

CP302).

Connector

(CP301)

Mechanism

“

”

Connector

unit

(CP302)

Check

the

main

P.C.B8.

shown

below.

Insulation

material

Mechanism

Main

PCB.

unit

(Solder

side)

Locaie

ihe

insulation

material

between

the

main

P.C.B.

and

the

mechanism

unit

prevent

from

short-circuit.

Boss

For

recording

mode,

press

the

boss

rec/play

switch.

When

installing

the

main

P.C.B.,

align

the

headphones

jack

and

LED

holder

with

the

hole

rear

cabinet

ass'y.

Holes

Headhpone

jack

LED

holder

RX-FS50

Notice

for

installation

tuner

P.C.B.

Band

knob

Band

knob

When

installing

the

tuner

P.C.B.,

align

the

boss

band

switch

with

band

knob.

FINE

TUNING

Roiate

the

FINE

TUNING

knob

until

the

stopper

faces

downward.

Band

switch

Tuner

P.C.B.

Main

Component

Replacement

Procedures

Replacement

for

the

pinch

roller,

erase

head

anc

rec

play

head

the

item

checking

procedure

for

each

P.C.B. on

pages

and

the

item

checking

procedure

for

each

P.C.B.

page

Removal

the

pinch

roller

ass'y

Release

the

claw,

and

then

pull

out

the

pinch

roller

ass’

<<.

Pinch

roller

ass'y

Slot

lever

Notice

for

insiallation

pinch

roller

ass'y

The

pinch

roller

ass'y

spring

should

aligned

with

the

sloi

lever.

RX-FS50

Removal

the

rec/play

head

Remove

the

screw

(@)).

Release

the

claws,

and

ihen

remove

the

rec/play

head.

Rec/play

head

installation

the

main

belt

Temporarily

secure

the

main

belt

show

below.

Removal

the

erase

head

Release

the

claws,

and

then

remove

the

erase

head.

Erase

head

Replacement

for

the

motor

ass'y,

main

belt

Fe”

Bae

tpotor

assy

and

fast

forward

belt

ihe

mechanism

unit.

the

item

checking

Main

belt

procedure

for

each

P.C.B.

pages

and

the

item

checking

procedure

for

each

P.C.B.

page

Remove

the

motor

ass'y

and

moior

bracket.

Main

belt

Main

belt

Boss

(A)

Tweezers

Remove

the

motor

bracket.

RX-FS50

Replacement

for

the

speaker

(Tweeter)

Foliow

the

item

checking

rocedure

for

each

P.C.B.

page

pag

Remove

the

cassette

lid

ass'y.

Tweeter

[EFBS10D40A2]

Melting

points

Re-installation

bosses

Cassette

lid

ass'y

Scratch

the

melting

points

poinis)

with

cuiter.

Aiter

replacemeni,

install

the

speaker

with

melting

the

re-installation

bosses

points).

Replacement

for

the

handle

Replacement

for

the

cassette

lid

ass'y

Foliow

ihe

the

item

checking

procedure

for

each

P.C.B.

page

install

the

cassette

lid

spring

the

rib

temporarily.

Tilt

the

handle

small

amount.

Handle

Cassette

lid

spring

©)screwdriver

Release

the

claws

with

screwdriver,

and

then

remove

the

handle.

Push

the

legs

cassette

sid

ass'y

the

direction

arrow,

and

then

release

the

cassette

lid

ass'y.

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