Panasonic Rq-sx44 User manual

ORDER

NO.

AD9502046C2

ervice

Manual

DO

feousy

ene]

AR90

(ARSOIV)

MECHANISM

SERIES

SPECIFICATIONS

Battery;

DC

1.5V

one

“AA”

size

(LR6)

battery

(not

included)

(Panasonic

R6,

LR6

or

equivalent

not

included)

Rechargeable

Battery;

DC

1.2V

with

an

included

Panasonic

Rechargeable

Battery

(RP-BP62EYS$1)

x

4

5mW+5mW...RMS

(max.)

Headphones;

16Q

(mini

jack

$3.5)

Power

Requirement:

Power

Output:

Output

Jack:

Dimensions:

(W

x

Hx

D)

108.0

x

75.6

x

21.0mm

Weight:

-

190g

(with

rechargeable

battery)

Mi

CONTENTS

LOCATION

OF

CONTROLS.

.........ssssssssesssesseessnesseseresnsesseneenenseeenene

POWER

SOURCES.

.....esccsscsenesssnsessssssneesesensatsesseasseeeseeesees

BEFORE

USE

..........scscsccssssssssessneneresnscnesneesenssenenscerseseenses

REMOTE

CONTROL

OPERATION..

sas

ACCESSORIES

....scsssssssssssssssssssesscssnsssoenusrecsnensnetaverseanensnseentseeserarses

PROCEDURE

FOR

THE

REPLACEMENT

OF

THE

MECHANISM

BLOCK

.........csssssssececssesesessesssnenseeneets

5

Panasonic

Stereo

Cassette

Player

Mini

Cassette

RQ-SX44

Colour

(K)...

Black

Type

Area

Suffix

for

©

|

ee

(EB)

Great

Britain.

+

Dolby

noise

reduction

manufactured

under

license

from

Dolby

Laboratories

Licensing

Corporation.

“Dolby”

and

the

double-D

symbol

are

trademarks

of

Doiby

Laboratories

Licensing

Corporation.

Charger:

(E)

Input;

AC

220V,

50Hz,

4W

(RP-BC155EY-0)

(included)

Output;

DC

1.2V,

350mA

(EB)

Input;

AC

240V,

50Hz,

4W

(RP-BC155EBYA)

(included)

Output;

DC

1.2V,

350mA

Frequency

Range:

15~20,000

Hz

(with

a

normal

tape)

(—6dB)

15~20,000

Hz

(with

a

CrO,

tape)

15~20,000

Hz

(with

a

Metal

tape)

Motor:

Electrical

governor

motor

Track

System:

4-track

2-channel

stereo

playback

Tape

Speed:

4.8cm/s

'

Note:

Design

and

specifications

are

subject

to

change

without

notice.

Weight

and

dimensions

are

approximate.

Page

PRINTED

CIRCUIT

BOARDS

AND

WIRING

CONNECTION

DIAGRAM

.......scsessceseccssncesnnees

17,

18

SCHEMATIC

DIAGRAN

.............-:0ccces00

we

18~21

BLOCK

DIAGRAN.................

sodastavacudduiabvsiteatsiucondstQevisvanoeesssevesuce

18

REPLACEMENT

PARTS

LIST........

»

22,

24,

27

RESISTORS

AND

CAPACITORS

..........:cc0csssessssssnsessssssseessenee

23,

24

PACKAGING

i

ciseiccsccccvitacosssssassadnidudecesncstcetucsentenceasaensssevcetscsetcesvusacce

24

CABINET

PARTS

LOCATION.........

wae

25

MECHANISM

PARTS

LOCATION...............-0:2:ssessnsssosssssasssaussoee

26

SUPPLY

OF

RECHARGEABLE

BATTERY

AS

REPLACEMENT

PARTG..........:.sscssestssssssnscssscnsesssesessrsneee

28

CAUTION

IN

USE

OF

RECHARGEABLE

BATTERY..........0.:.00

28

RQ-SX44

|

Mi

LOCATION

OF

CONTROLS

mi

POWER

SOURCES

This

player

can

operate

on

any

of

2

different

power

sources:

1.

Rechargeable

battery

(included)

2.

Dry

cell

battery

(not

included)

Rechargeable

battery

For

its

initial

use

after

purchasing

or

after

a

long

time

interval

(more

than

three

months),

be

sure

to

recharge

the

rechargeable

battery.

Normally

2

hours

recharging

will

give

approxi-

mately

6

hours

tape

playback

(at

25°C).

However,

playback

time

may

become

shorter

de-

pending

on

the

operating

conditions,

e.g.

repeating

fast-forward

or

rewind,

etc.

1

Recharge

the

rechargeable

battery.

@For

UK,

the

shape

of

the

charger

is

different.

2

Insert

the

charged

battery

into

the

unit.

Dry

cell

battery

Bi

1

insert

one

R6/LR6

battery

(UM-3

or

equiva-

lent,

not

included)

into

the

battery

case.

2

Attach

the

battery

case

to

the

unit.

3

Turn

the

screw

until

it

locks.

@

To

extend

the

playback

time

Install

both

types

of

battery

(rechargeable

and

dry

cell

battery)

in

the

unit.

Mi

When

the

battery

becomes

weak

The

OPR/BATT

indicator

will

dim

or

turn

off.

Re-

charge

the

rechargeable

battery

or

replace

the

dry

cell

battery

with

new

one.

Use

time

indicator

This

unit

adds

up

the

total

time

hours

since

install-

ing

a

battery.

For

example,

when

the

unit

has

been

operated

about

an

hour,

display

shows

“USE

TIME

{4

after

about

2

hours

display

shows

“USE

TIME

oH

”,

and

so

on.

The

battery

life

may

differ

accord-

ing

to

the

condition

of

batteries

used.

Notes:

@

Play

time

may

be

shorter

depending

on

the

oper-

ating

conditions,

e.g.

repeating

fast

forward

or

rewind

etc.

Use

time

indicator

will

reset

to

zero

when

both

batteries

are

removed.

3

(hours)

>

Mi

BEFORE

USE

Connecting

the

stereo

earphones

Unless

the

earphones

are

firmly

inserted.into

the

9)

jack,

the

sound

may

become

intermittent,

or,

oper-

ation

using

the

remote

controller

may

become

im-

possible.

The

size

of

the

earpiece

can

be

adjusted.

When

it’s

too

loose

in

the

ear,

turn

the

fitting

ring

(@)

to

©,

when

it’s

too

tight,

turn

to

©.

When

not

using

the

stereo

earphones,

slide

up

the

slider

(@)

to

prevent

entanglement

of

the

cord.

Concerning

the

hold

operation

w@

Main

unit

(Auto

Hold)

This

unit

is

equipped

with

an

auto

hold

system

which

makes

all

control

buttons

inoperable.

To

re-

lease

the

hold

state,

simply

touch

any

button.

Press

buttons

only

with

your

fingers.

Note:

Keep

the

buttons

clean

and

dry

otherwise

the

auto

hold

system

may

not

work

properly.

m@

Remote

control

9

eTo

prevent

unwanted

operation

You

cannot

activate

remote

control

buttons

when

the

HOLD

switch

is

set

to

HOLD

(hold

state).

Be-

fore

using

remote

control

buttons,

release

the

hold

state.

When

the

unit

is

in

the

hold

state,

the

display

shows

HOLD.

How

to

attach

the

cord

clip

@Attach

the

clip

to

the

cord

protruding

from

the

top

of

the

remote

control

(earphone

side)

for

use.

@In

order

to

prevent

the

cord

from

being

damaged,

do

not

slide

the

clip

along

the

cord

once

it

has

been

attached.

RQ-SX44

Las

|

meeda|

Cry)

|

CCrHOI)

To

release

To

hold

Mi

REMOTE

CONTROL

OPERATION

You

can

change

the

tape

operation

or

tone

quality

with

remote

control

buttons.

Before

using

those

buttons,

plug

the

stereo

ear-

phones

into

the

()

jack

and

be

sure

to

release

the

hold

state.

To

change

the

tape

operation

Press

the

multi

operation

button.

€¥-@)

°:

Press

once

to

play

and

stop.

@:

Press

and

hold

to

change

the

direction.

ee:

Press

twice

for

fast

forward.

eee:

Press

three

times

for

rewind.

@When

pressing

the

button

twice

or

three

times

in

succession,

press

it

within

one

second

and

at

equal

interval.

When

it

is

pressed

twice

or

three

times

during

play,

play

will

start

from

beginning

of

the

tape

(opposite

or

the

same

side).

Confirmation

beep

can

be

heard

as

shown

on

the

figure.

To

find

the

beginning

of

a

song

(TPS:

Tape

Program

Sensor)

Press

+

or

—

once,

twice

or

three

times

during

playback.

+:

You

can

skip

forward.

~:

You

can

skip

backward.

To

adjust

the

volume

Before

using

the

VOLUME

on

the

remote

control,

be

sure

to

adjust

the

volume

control

on

the

main

unit

to

“5-7”

position.

Beep

Bee...p

Beep

(SKIP

REVERSE)

|

[(REWIND

AUTO

PLAY)

RQ-SX44

To

change

the

Tone

@

To

enjoy

the

amenity

sound

(ASC

EQ)

Every

time

you

press

ASC

EQ

the

tone

will

change

as

follows

in

turn.

(@

Indicates

the

tone.)

Confirmation

beep

can

be

heard.as

shown

on

the

figure.

S-XBS:

Boosts

the

low

frequency

range.

@if

the

sound

distortion

occurs,

turn

down

the

vol-

ume.

TRAIN:

Gives

a

more

natural

quality

to

the

sound

and

reduces

strain

and

fatigue

when

you

listen

for

long

time.

It

also

cuts

down

the

audible

level

of

sound

Beep

which

disturbs

people

around

you.

LIVE:

:

S-XBS

|—j}

TRAIN

|—>|

LIVE

Adds

gloss

to

the

vocal.

eThis

function

may

not

be

effective

according

to

(VMSS

ON)

the

source.

@

To

enjoy

the

virtual

motion

sound

9

Beep

(VMSS)

It

boosts

the

low

frequency

range.

Also,

the

vibra-

tion

of

the

earpieces

of

the

included

earphones

“|

(VMSS

OFF)

makes

sound

vigorous.

Set the

VMSS

selector

to

ON.

Raising

the

volume

level

using

the

VOLUME

con-

trol

on

the

main

unit

intensifies

the

VMSS

effect.

eThe

VOLUME

control.

on

the

remote

control

can

not

be

used

to

change

the

VMSS

effect.

eVMSS

may

not

effective

according

to

the

source.

When

the

VMSS

selector

is

set

to

ON

while

ASC

EQ

is

canceled,

S-XBS

automatically

appears

as

the

sound

quality

display.

To

repeat

a

current

song

(ONE-REPEAT)

Press

and

hold

ASC

EQ

on

the

remote

control

during

play.

@

To

cancel

the

ONE-REPEAT

Press

and

hold

ASC

EQ

once

more.

ONE-REPEAT

is

also

cancelled

when

tape

opera-

tions

are

switched.

VMSS

OFF

¢*

ON

Mi

ACCESSORIES

A

B

a

Stereo

earphones

with

Rechargeable

battery...

1

pc.

Battery

case

...........

1

pe.

Cord

clip..............-

1

pe.

remote

controller.......

1

pe.

(RP-BP62EYS1)

(RFA0474-k)

(RFA0574-kK)

(RFEV126P-KS)

Chaldehiisissease

sti

aa

tavern

t

bie

ee

eae

ofa

tah

Stat

1

pc.

Carrying

bag...........

1

pe.

Rechargeable

battery

(RP-BC155EY-0):

(E)

(RP-BC155EBYA):

(EB)

(RFC0027-k)

carrying

case

..........

1 pe.

: ;

(RFA0475-Q)

—4—

|

RQ-SX44

Wi

PROCEDURE

FOR

THE

REPLACEMENT

OF

THE

MECHANISM

BLOCK

¢

How

to

replace

the

mechanism

block

The

mechanism

block

is

supplied

without

other

parts

as

a

semi-assembly.

The

head

block,

motor

and

belt

are

supplied

separately

from

the

mechanism

block.

If

the

mechanism

block

is

exchanged

as

a

replacement

assembly,

follow

the

preparation

procedure

below.

Preparation

procedure

Remove

the

head

block,

motor

and

belt

from

the

mechanism

to

be

replaced

and

replace

those

parts

to

the

new

mechanism

block.

(Refer

to

the

“OPERATION

CHECKS

AND

MAIN

COMPONENT

REPLACEMENT

PROCEDURES”)

Mechanism

block

Fig.

1

Fig.

2

Note:

The

adjustment

of

the

mechanism

block

is

unnecessary

after

replacement.

¢

How

to

replace

the

head

block

The

head

and

pinch

roller

are

supplied

together

in

the

head

block.

The

pinch

roller

is

also

supplied

separately.

Preparation

procedure

The

head

block

for

replacement

is

not

supplied

with

a

holder

as

shown

in

the

figure

below.

Therefore,

remove

the

holder

from

the

block

to

be

repaired

and

mount

it

to

the

new

head

block.

Then,

proceed

to

replace.

the

head

block.

(Refer

to

the

“OPERATION

CHECKS

AND

MAIN

COMPONENT

REPLACEMENT

PROCEDURES”.)

Holder

(to

be

removed

from

the

section

tg

be

repaired)

Fig.

3

Note:

Head

azimuth

adjustment

is

unnecessary.

RQ-SX44

|

ll

OPERATION

CHECKS

AND

MAIN

COMPONENT

REPLACEMENT

PROCEDURES

\(ext=8

=

1.

This

section

describes

procedures

for

checking

the

operation

of

the

major

printed

circuit

boards

and

replacing

the

main

components.

2.

For

reassembly

after

operation

checks

or

replacement:

reverse

the

respective

procedures.

Special

reassembly

procedures

are

described

only

when

required.

3.

Illustrated

screws

are

equivalent

to

actual

size.

4.[

]

indicates

parts

No.

e

Contents

Page.

1.Checking

for the

P.C.B,

see

cececcccccccccccccccccccccecvecccssasccscscsccscsescsscnes

6,7.

2.Replacement

for

the

motor

and

belt.

CROSSES

SHHSSSSSSCESE

SESE

EEEHOH

HSE

EEE

HEEH

EHH

HEHEHE

OOE

8.

3.Replacement

for

the

cassette

lid(A)

ass'y

and

cassette

lid

(B)

ass'y*esesrereecsceeccscccccccoccces

B11,

4.Replacement

for

the

head

block

ass’y

and

pinch

roller

arm.

**eecccsssessceeccccccccsccccsoocccs

12,13,

5.Replacement

for

the

intermediate

ornament(B),

intermediate

ornament(C)

and

side

ornament.

***sessereee

13,14.

1.

Checking

for

the

P.C.B.

Remove

the

6

screws.

Remove

the

cabinet

ass’y.

Remove

the

2

ribs.

Thin

tip

minus

screwdriver

Unless

releasing

the

rib,

the

rib

may

be

amaged

when

removing

the

cabinet

ass’y.

*

Check

the

P.C.B.(Front

side)

—

in

this

condition.

Removal

for

checking

the

P.C.B.(Back

side)

exp

oO

Store

the

rechargeable

battery.

Cre

The

rechargeable

battery

)

should

be

recharged

fully.

3

When

the

P.C.B.

is

removed,

the

rechargeable

battery

terminal(+)

will

also

be

removed.

@=

0

@m

©

[RHE5155YA]

[RHE5169YA]

@>

Oo

§>O

[RHQ0027

-

K]

[RHE5119ZA]

%

Rechargeable

battery

terminal(+)

Soller(/

points)

RQ-SX44

¢

Check

the

P.C.B.(Back

side)

in

this

condition.

/

Headphones

jack

Connect

the

extension

cord

to

the

motor

terminals

with

solder.

Black

Red

os

White

ae

Rechargeable

battery

:

terminai(—)

foil

Rechargeable

battery

———“='ff

terminal(+)

Extension

cord

wy

fj

Plunger

arm

(pull

it

in

(RFKZ0002)

Y

the

direction

of

arrow.)

Connection

terminal

Power

supply

Ba

NN

\

SS

¢

”

Plunger

C

1.5)

'

Rechargeable

battery

terminal(—)

(Mechanism

earth)

iS)

li

Short

Points

es

This

diagram

shows

a

front

view

of

the

IC4

¢

Solder

the

short

land

to

shrot

the

circuit.

mounting

surface.

Short

the

short

land

@

.

'

:

Short

the

short

land

©.

Short

the

short

land

©

(Back

side)

2G

as

oe

(Back

side)

(Back

side)

(Gauge

No.

D-3)

BE

_

(Gauge

No.

E-4)

‘a

ie

He

Short

the

short

land

©

(Back

side)

(Gauge

No.

E-3)

Short

the

short

land

©

er

Ss

'

Back

side)

»

Short

the

short

land

©

(Back

side

(

1%

3

(Gauge

No.

E-3)

®

(

)

(Gauge

No.

F-4)

5

A

Short

the

short

land

©

Short

the

short

land

®

(Back

side)

(Back

side)

(Gauge

No.

E-3)

(Gauge

No.

F-4)

Mechanism

Mode

Setting

*

Manually

operate

the

plunger

arm

when

checking

the

PLAY/STOP

operation.

*

Manually

pulling

the

plunger

arm

once

sets

the

FWD

mode;

twice,

REV

;

and,

three

times,

STOP.

Kreis

1.

Operate

the

plunger

arm

manually.

Even

if

the

operation

buttons

pressed,

the

plunger

will

not

be

actuated.

2.

Even

if

the

mechanism

unit

is

switched

to

the

FWD

mode,

the

head

change

—

over

switch

(IC1)

will

remain

in

the

REV

position,

so

set

the

REV

mode

to

check

the

audio.

Before

checking

the

operation

problems

and

adjustments,

be

sure

to

release

the

hold

state.

(With

the

stereo

earphones)

3.

After

checking,

unsolder

the

short

land@,®,©,0,©,®

,@and

@.

RQ-SX44

2.

Replacement

for

the

motor

and

belt

¢Follow

GSD

~

,

SEED,

EDPin

item

1

on

page

6.

Remove

the

washer.

fa)

r

Belt

ie

[RDV0003]

Remove

the

intermediate

ornament

(A)

ff

Upset

the

set

installing

the

belt

¢

When

install

the

belt

to

motor,

push

up

the

motor

by

insert

the

non-

magnetic

material

sheet

between

bottom

of

the

motor

and

the

chassis,

and

install

the

belt

between

top

of

the

motor

and

the

coil

P.C.B..

oe

©

[XQS14+A18FZ]

+t

Top

of

the

motor

Coil

P.C.B.

Bottom

of

the

motor

Widening

ey

Chassis

Sheet

of

non-

magenetic

material

(0.2mm~0.3mm

thick)

3.

Replacement

for

the

cassette

lid

(A)

ass’y

and

cassette

lid

(B)

ass’y

Follow

GaaaD

~

in

item

1

on

page

6.

When

removing

the

screws,

the

parts

as

shown

below

are

removed.

Cassette

lid

(A)

ass’y

[RFKLQSX44E-

Kk]

Holder

plate

Link

plate

unit(L)

Remove

the

cassette

lid

ass’y

Cassette

lid

(B)

ass’y

[RYF0302-

kK]

@=

0

@&

©

[RHD14008-K]

[RHQ0035-

K]

RQ-SX44

Assembly

procedures

for

the

cassette

lid

(A)

ass’y

and

cassette

lid

(B)

ass’y

after

replacement

Temporarily

install

the

holder

plate

to

cassette

lid

(A)

ass’y.

Dual

adhesire

tape

[Side

L]

or

adhesire

agent

[Side

R]

Cassette

lid

(A)

ass’y

Dual

adhesire

tape

or

adhesire

agent

[Side

R]

[Side

L]

Projection

i

legs=3

Take

care

the

plates

are

in

the

correct

direction

when

installing.

(Refer

to

above)

Fix

with

screws.

BB

Link

plate

unit

(L),(R)

shaping

»

Link

plate

unit(L)

Tip

of

screw

Holder

plate

Put

the

screw

into

the

hole

@.

@

0

[RHQ0035-

K]

Link

plat

it

(R

Hold

the

link

plate

unit

(L).

a

Groove

@)

Projection

of

link

plate

unit

2

7

Tip

of

screw

Projection

of

link

plate

unit

Groove

Cassette

lid

(B)

ass’y

[Side

L]

Cassette

lid

(A)

ass’y

ep

Install

the

cassette

lid

(B)

ass’y

to

the

cassette

lid

(A)

ass’y

*

Align

the

groove

@)

of

cassette

lid

(B)

ass’y

with

the

projection

of

link

plate

unit

(L).

«

Align

the

groove

©)

of

cassette

lid

(B)

ass’y

with

the

tip

of

screw.

RQ-SX44

|

\

[Side

LI

[Side

R]

Link

plate

unit

(R)

Cassette

lid

(A)

ass’y

Install

the

cassette

lid

(B)

ass’y

with

link

plate

unit

(R)

to

the

cassette

lid

(A)

ass’y.

Link

plate

unit

(R)

Projection

Casseite

lid

(B)

ass’y

Groove

©

Align

the

projection.

of

link

plate

unit

(R)

with

the

groove

©

of

cassette

lid

(B)

ass’y.

Link

plate

unit

(R)

Cassette

lid

(B)

ass’y

Move

the

link

plate

unit

(R)

in

the

direction

of

arrow,

and

then

align

the

holes

of

cassette

lid

(A)

ass’y

with

the

holes

of

link

plate

unit

(R)

to

tighten

with

screws.

@

O

[RHQ0035-

K]

Install

the

intermediate

ornament

(A).

Cabinet

ass’y

RQ-SX44

4.

Replacement

for

the

head

block

ass’y

and

pinch

roller

arm

Head

block

*Follow

GSED~

G2ED

,

GED

GML

in

item

1

on

page

6.

ass'y

[RXQ0387]

Remove

the

cassette

lid

ass’y

piece(R)

%o9

GD

cp

Remove

the

washers.

@

Pull

out

the

FFC.

:

Pinch

roller

spring

(R

fou

pring

(R)

!

>

Pinch

roller

arm

(R)

Pinch

roller

spring

(U—-$r

[RXLO005]

t

e)

Pinch

roller

arm

(L)

[RXL0004-

1]

!

{

'

!

Head

arm

spring

(L)

@=

©

Om

©

[RHD14008-K]

[RHD14031]

Assembly

procedures

for

head

block

ass’y

after

replacement

t

step

1)

Install

the

hold

pieces

().(R).

and

then

tighten

screws.

Then,

tighten

screw

for

hold

piece

hand-

tight.

°

%

Tighten

screw

hand-

tight

so

that

the

hold

pieces

are

not

removed.

Hold

piece

(R)

Om

Oo

[RHD14031]

Mechanism

unit

Take

care

not

to

damage

the

connection

terminals.

RZ

a

Connection

terminals

Close

the

cassette

lid

ass’y.

t

step

9

Tighten

with

screws.

@=

©

[RHD14008-

K]

Align

the

switch

bosses

with

the

knobs.

Align

the

headphones

jack

with

the

hole

of

cabinet

ass’y.

Cassette

lid

ass’y

t

step

5)

Align

the

ribs

with

the

holes

@

and

©.

Link

plate

unit

(R)

insert

the

link

plate

unit

(L),(R)

along

with

rib.

Link

plate

unit

(L)

§=

©

[RHE5155YA]

@m

©

[RHE5169YA]

@»

O

[RHQ0027

-

kK]

RQ-SX44

Allgn

the

rib

of

hold

piece

(R)

'\feyn=§

Take

care

that

the

guide

piece

with

the

hole

©

of

head

block

ass’y.

Pinchislleracn

eulies

ne

pinch

roller

arm.

Hold

piece(R

Rib

of

hold

piece

(L)

Screwdriver

——~

Align

the

rib

of

hold

piece

(L)

with

the

hole

®

of

head

block.

De

,

SED

WQ@_

_

Secure

the

screws.

9

ae

SS

5.

Replacement

for

the

intermediate

ornament

(B),

intermediate

ornament

(C)

and

side

ornament

*

Follow

GEap

~

in

item

1

on

page

6.

Remove

the

intermediate

ornament

(A).

Push

the

open

lever,

and

then

open

the

cassette

lid

ass’y.

~

Remove

the

intermediate

ornament

(C)

in

the

direction

of

arrow.

Intermediate

ornament

(C)

Release

the

claw

in

the

direction

of

arrow

@,

and

remove

the

battery

cover

in

the

direction

of

arrow

@.

RQ-SX44

step

5)

¢

Use

care

that

the

contact

een

tHe

hook

is

not

stick

dust

or

grease,

Button

ornament

Remove

the

five

screws,

and

PLAY/STOP/FF/REW

knob

then

remove

the

parts

as

shown

left.

Operation

P.C.B.

Intermediate

ornament

(C)

{RGK0665

~

H]

beckupk

%

Use

care

that

the

zebra

connector

is

not

stick

dust’or

grease.

Remove

the

auto

return

spring.

Remove

the

open

lever.

Intermediate

ornament

(B)

[RGK0664

-

H]

,

[RGK0666-

S]

Qo

oe

[RHE5119YA]

li

MEASUREMENTS

AND

ADJUSTMENTS

@

ADJUSTMENT

INSTRUCTIONS

READ

CAREFULLY

BEFORE

ATTEMPTING

ADJUSTMENTS

1.

Set

volume

control

to

maximum.

3.

Release

the

hold

state.

2.

Set

Dolby

NR

Switch

to

OFF.

4.

Set

power

source

voltage

to

1.5V

DC.

e¢

CONTROL

POSITIONS

AND

EQUIPMENT

USED

1.

Frequency

counter

@

TAPE

SECTION

MEASUREMENT

ADJUSTMENT

ITEM

TEST TAPE

POINT

PROCEDURE

Playback

the

central

part

of

the

tape

and

adjust

VR2

so

that

the

tape

speed

is

as

follows.

Forward:

3000

+20

Hz

Reverse:

2940~3050

Hz

Make

sure

that

the

frequency

range

in

within

+60Hz

for

between

“Forward”

and

“Reverse”

mode.

Connect

the

frequency

counter

to

Headphones

jack

(16Q)

(Refer

to

Fig.

1)

VR2

(Refer

to

Fig.

2)

QZZCWAT

(3kHz,

—10dB)

Tape

speed

adjustment

Note:

The

playback

head

is

supplied

on

the

head

arm

assembly.

(See

the

Mechanism

parts

location

on

page

26.)

The

assembly

requires

no

adjustment.

To

headphones

jack

—»

For

measuring

—

instrument

R=16Q

Tape

speed

adjustment

Fig.

1

¢

Terminal

guide

of

IC’s,

transistors

and

diodes

LA4592W-TFM

M34560M6054F_[63Pin|

XN1215TX

Cc

ee

8

AN6647FA

LA4535M-TE-L

|

10Pin|

AN7379NSHE2

|24Pin|

2SB815B7TX

2SD1819STX

MA713TXRA

MA147TX

MA143TX

28B1218STX

28D1935-7TB

2SB1218ATXRA

UN511MTX

Cathode

c

2SB1219RTX

UN5110TX

Anode

28C4983-67TB

UN5114TX

8

28D1328STX

UN5116TX

Anode

cia

2SD1328STXRA

UN5210TX

Cathode

MA728TX

LN1261CTR

CS

Cathode

Anode

ae

A

|

RQ-SX44

TERMINAL

FUNCTION

OF

IC

e

1C4

(M34560M6054F):

Mechanism

control

V0

Division

Play

mode

detection

input

STBYL

|

—

|

Not

used,

connected

to

GND

DD

BLNK

|

-—

|

Not

used,

connected

to

GND

Inputs

the

signal

for

the

detection

of

tape

rotation.

When

the

pulse

signal

is

inoput:

The

current

mode

remains

set

as

the

tape

is

rotating.

No

pulse

signal:

Stops

or

starts

reverse

playback

as

the

tape

has

stopped

rotating

(ie,

reached

the

end).

Tape

turn

control

output

terminal

LED

drive

signal

input

Not

used,

connected

to

GND

Confirmation

beep

output

of

remote

control

operation

TPS

control

signal

input

terminal

Test

signal

input

terminal

Remote

control

serial

data

input

terminal

Remote

control

serial

data

output

terminal

Not

used,

connected

to

GND

RAIN

LED

Not

used,

connected

to

GND

LIVE

LED

|

—

|

Not

used,

connected

to

GND

H

OF

LED

|

—

|

Not

used,

connected

to

GND

v0

Division

Not

used,

connected

to

GND

SX5/7

38

39

F

SW

U

i

Mechanism

(FWD)

detect

input

terminal

Mechanism

(REV)

detect

input

terminal

Outputs

the

power

switching

signal

(MOTOR

ON)

Outputs

the

motor

drive

signal

(MOTOR

ON)

Outputs

the

reversing

motor

drive

control

signal

Speed

up

signal

output

terminal

ow

L-R

SW

4

|

T.PLSIN

OTOR

.

CCW

-PLSC

v2)

°

rm

signal

(REV)

Power

supply

control

signal

output

OP

BLNK

7

IM

LED

47

foe]

Hey

XBS

OFF

TEST

IN

SC

ON

11.

|

DATA

IN

o

e\&

oO)

cr

vu mi

nm)

&

°

>

=

o

x|

D

ATA

OUT

VOL.

1

Not

used,

connected

to

GND

_

3

x<

BS

LED

VOL.

2

VOL.

3L

Not

used,

connected

to

GND

Key

switch

detect

terminal

(STOP)

Key

switch

detect

terminal

(PLAY)

VOL.

3R

=

—-a

6

a

N

<

Virtual

motion

sound

(VMSS)

1

Be

MAX

detect

input

terminal

N.C

Not

used,

connected

to

GND

=

©

.

REST

=

Reset

signal

input

terminal

Crystal

oscillator

terminal

(F=32kHz)

Key

switch

detect

terminal

(FF)

Key

switch

detect

terminal

(REW)

Inputs

the

hold

(touch

sensor

ON/OFF)

detect

Ps)

m

|

|e

<

| U

Ww

X

OUT

Vss

KEY

ENT

Le)

nN

wo

NX

VCG

Pi

supply

terminal

i

ef

:

|vec

|!

|

esi

laia

lol

Mecbab

dale

Inputs

the

signal

that

detects

;

:

inserted.

“L”

ON

(CLOSE);

the

27

MUTE

|

OF

|

Muting

signal

output

terminal

tape

is

inserted.

“H”

OFF

B.MUTE

|

©

|

Muting

signal

output

terminal

(OPEN);

the

tape

is

not

inserted.

29

|

64

REN

FIXL

Not

used,

connected

to

GND

5

N.C

Not

used,

open

Ee

|

RQ-SX44 RQ-SX44

1

2

3

4

5

M@

PRINTED

CIRCUIT

BOARDS

AND

WIRING

CONNECTION

DIAGRAM

MAIN

P.C.B

(REPI989A)

A

[vmss]

PLAYBACK

HEAL

[=]

HEAD

PCB,

CH11

SOLENOID

RECHARGEABLE

BATTERY

DC

1.2V

(RP-BP62EYS1)

H

[oacey

na]

MOTOR

+

is

|

BATTERY

|

R6/LR6(UM-3)

i

BATTERY=21.5V

BATTERY

CASE

e

CHECK

POINT

OF

SIGNAL

CH11

L

PRE

DOLBY

NR

OUTPUT

”

OUTPUT

|

GND

|

Ki

VR

TERMINAL

VR

|

Reh

|

renwivan

VR

TERMINAL

|

teh

|

resi

i

DOLBY

NR

_,

VR

c

Cc

OUTPUT

~~

INPUT

Cc

VR

INPUT

>

oyTpuT

0

HP

TERMINAL

HP

TERMIANL

0

TERMINAL

DC-DC

CONVERTER

OUTPUT

(BOOSTER)

|

GND

|

eg

|

PHOTO

COUPLER

PULSE

(END)

OUTPUT

Notes:

Le

POWERAMP

_

HEADPHONE

OUTPUT

h

Rch

Loh

COM

Leh

Reh

COM

h

COM

ein

this

printed

circuit

board

diagram,

the

parts

and

foil

patterns

on

the

board

facing

toward

you

are

printed

in

black.

The

opposite

side

is

printed

in

blue.

¢

The

“

e”

mark

denotes

the

connection

points

of

double-faced

foil

patterns

(through

holes)

on

both

side

of

the

printed

circuit

board.

¢

This printed

circuit

board

diagram

may

be

modified

at

any

time

with

the

development

of

new

technology.

Mi

SCHEMATIC

DIAGRAM

(See

parts

list

on

pages

22~24.)

(This

schematic

diagram

may

be

modified

at

any

time

with

development

of

new

technology.)

Notes:

Si

:

FWD/REV

switch

in

“FWD”

position.

°$2

:

VMSS

switch

in

“OFF”

position.

°$3

:

B.S/Reverse

mode

switch

in

“OFF”

position.

eS4

~~:

DO

NR

switch

in

“OFF”

position.

¢S8-1

:

Tape

detector

(OPEN/CLOSE)

switch

in

“OPEN”

position.

¢$8-2

:

Tape

selector

(METAL/NORMAL)

switch

in

“OFF

(METAL)”

position.

¢

$301

:

(MB)

switch.

¢

$302

:

REW

switch.

¢

$303

:

FF

switch.

©

$304

:

(<>)

switch.

eVR1

:

Volume

adjustment.

eVR2

:

Tape

speed

adjustment.

¢

DC

voltage

measurements

are

taken

with

electronics

voltmeter

from

negative

terminal

of

battery.

No

mark...

Playback.

MAX...100

uN

wolgme

NE

bee

e

Signal

line

wapees

©

+B

linc,

sam

:

Playback

signal.

e

BLOCK

DIAGRAM

PLAYBACK

HEAD

TP14(15)

O

TP

24(25)

ue

HEADPHONES

1C600

POWER

AMP

(VIBRATION

)

TP48

9331,

332

1c4

MECHANISM

CONTROL.

RQ-SX44

A]

MAIN

circuit

(P.C.

Board:

on

pages

17,

18)

c204

2

MO0.018

R208

te

88

Ov.

=

CH11

9

Sua\ov

z

3

ow

[

Rios

Ooar

6.8K

wy,

=

NN

ov

ow

clo4

RIO6

a

og

MO.018

3.9K

88

ici

ss

cis

LA4592W-TFM

Qlol

|

Rese

ev]

_2

PRE/S~XBS/POWER

AMP

'

mo

XNt21ISTX

OK

52

HEAD

SWITCHING

CIRCUIT

CMETALZNOR)

ee

ov

Jo7v

joav

fo7v

fozv Jozv

fo7v

fo.7v

Jozv

lov

}o.ev

26

C)—2)—2)-—2)

—@)

()—)

=

ae

REV-©

c202

R231

c231

K0.022

4.7K

MO.0I5

Loch

C203.

L

8s

20.22

0.4V

FWD

R202

¢230

FN®

wo

150°

2.5Vv33

|

=°

0.8v

PLAYBACK

HEAD

1

preven

)

3]

&

f)

||

0.8v

Rech

:

0.8V

L

2

|

ca

REV

=

pmb

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-

=

Nn

id

yl

-agt

9B

10¥2.2

o.8v

wag

eee

(6y—X6)

2S8815B87TX

POWER

SUPPLY

MA728TX

DS

MA728TX

at

Meet

~~

71

peer

7-7

1

ne

LSHORT

LAND

J}

!

SHORT

LAND

|

)

ce

(3)

\_

x]

MOTOR

(4

Q4,6,8

2SC4983-67TB

MOTOR

DRIVE

(SPEED)

1c2

AN6647FA

MOTOR

DRIVE

i

Pal

|

rest

~~

LSHORT

LAND

Q@

10-12

Sian

2SBI2ZI9RTX

SPEED

CONT.

|

[eanenr

LIMITTER

Q13

O)}—6)

—-~)-—6

esol

los

Lx

oF

o

oT

o-

2V

ow

whe

1.5¥

Q3

5 7

tu

a

n

i)

ale

2$D1935-7TB

ol

sal

eS]

28

a

4

MOTOR

DRIVE

(SPEED)

al

“<7

ogy

ST

TEST

SHGHT

OA

RQ-SX44

¢

There

are

two

types

of

the

mechanical

control

1C4

for

this

unit,

A

and

B.

¢

Transistors

Q361

through

Q365

are

not

used

with

the

B

type

IC.

(Refer

to

the

circuit

[Od

CAT

Transistor

used

_|

Type

A

|

M34560M6053F__

|

_Q361~Q365

Yes

M34560M6054F___|

_Q361~Q365

No

drawing

in

doted

lines

on

page

21.)

Lav

ee

oN

1913

oy

293m

A

B

Cc

28

Joye

A

a

1c3

AN7379NSHE2

DOLBY‘NR

[TEST

SHORT

LAND!

SE

es

Q301,302

UNSILMTX

MOTOR/SOLENOID

y

DRIVE

16

Z

2

KIOOOP|

2

osv

Tov

2

Fs

ux

o

3

B

2”

9S

a

td

8

a

Ce

o

a@-

190.

BS

A

a§

inf

|

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Nge]

sa

Lid

fe

No

Tas

x]

x.

o

[ets]

mover)

x

|

OF

2

Sx

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?

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orr

re

J

on}

[c

ee

Q303

R2,e0

mms

|

°

=

2SDIZ328STXRA

SOLENOID

DRIVE

7

|TTT7tVOLUME)

C128:

eoscco

4

c

a;

7

Zi

|

TEST

ES

“

|

SHORT

LAND

|

-

58

35

No

[tds

$2

s

Rape

(MECHANISM

Riae

.

DET.

FWD/REV/STOP)

¢

o>

bh

wo

S35

&r

a

an

Q304

2SBi2I8STXx

VuVV

Po

RESET

zzz2zz

R310

Sao

«x

bt

t's

ee

os

F

Yor

a4

:

|

3

<

1

M34560M6054F

|

ar

MICRO

COMPUTER

GFF

[_

(MECHANISM

CONT.

}

Q305

Fp

RESET

meseoo

cio

|

TEST.

saat

“t

16V1

LSHORT

LAI

1D

|

etl

—_——_—

Re

}

LSHORT

LAND

|

47K

o

.

:

L

D2

:

NATSCe

Q402

ON/

(on)

Rik

/|

2sDis2esTx

9

S22

6

oo

POWER

SUPPLY

SOWEE

4

sited

SUPPLY

Q308

5

‘a

UNSIIMTX

gx

POWER

SUPPLY

CONT.

TYPE

A

M34560M6053F

|

M

2SB121I8STX

DATA

CONTROL

Q300

2SDI8SlIOSTX

TAPE

END

DET.

UNS210TX

LED.

DRIVE

©

M34560M6054F

is

supplied

for

replacement.

When

replacing

an

IC,

always

use

type

B,

regardless

of

the

current

IC

type.

Even

if

the

current

IC

is

of

type

A,

it

is

not

necessary

to

replace

transistors

Q361

through

Q365.

Q60l

2SDI8I9STX

Bac

SX

BUFFER

AMP

cv

o.8y

28

1.4V

2°

>

:

(

R509

22K

°

<

02

K

603

K

eo

i

<

°

o

°

a

Q600

UNSII4TX

SWITCHING

C603

REO4G

ZO4

1c600

LA4535M-TE-L

POWER

AMP

(VIBRATION)

BACH

Q354

2

SDIBI9SST

X

SWITCHING

(TOUCH

SENSOR)

D303

MAI47TX

Q355,356

2SDI819STX

STABILIZER

28018

ISSTX

lav

SWITCHING

(TOUCH

SENSOR)

Q362-365

33

SWITCHING

UNSIIOTX

-

vas

Cees

i

ts

ie

es

a

geal

ae

!

A’

Type Only

TOK

MAI43TX

lav

Q33T

P

2SBI121I8STX

LED

ORIVE

©

Q332

UNSIIOTX

LED

-DRIVE

CONT.

o

ME

RQ-SX44

JKI

HEADPHONES

162

(63.5)

BATTERY

CASE

a

TTERY CASE,

4

°

;

|

!

sa

+

paTTeRY

|

RE/LREUM-3)!

'

3

_

BATTERY==1.5V

|

I

[ress

pate

ee

oR

a

7

RECHARGEABLE

BATTERY

DC

1.2V

*_

(RP-BP62EYS1)

OPERATION

CIRCUIT

Q352

2SBl21IBATXRA

SWITCHING

(TOUCH.

SENSOR)

(TOUCH

SENSOR)

S8-1

(TAPE

IN/OUT)

$8-2(METAL/NORMAL)

RQ-SX44

|

Mi

REPLACEMENT

PARTS

LIST

a

eesti

I

3

7

10-12

—

ww

i—J

oo.

101

300

301,

302

304

331

332

351

352

361

01

Q600

i=]

=

Q353-356

|2SD1819STX

|

TRANSISTOR

E

Q362-365

—

|UNS110TX

kK

Q402

2SD1328STX

2SB1218STX

Q601

28D181

9STX

Part

Name

&

Description

INTEGRATED

CIRCUIT

(S)

LA4592W-TFM

_|PRE/S-XBS/POWRE,

AMP

ANGG47FA

(MOTOR

DRIVE

|

C1

1¢3

AN7379NSHE2

|DOLBY

BNR

M34560M6054F

|MECHANISM

CONTROL

LAW

TEL

TRANSISTOR(S)

28D1935-7TB

i

TRANSISTOR

2804983-67TB

|

TRANSISTOR

28D1935-71TB

2804983-67TB

28D1935-7TB

2804983-677B

Part

Name

&

Description

vR2___JEVMAYSX50B23

|TAPE

SPEED

ADJUSTMENT

ars

a

eee

a

te

Ree

en

ee

al

|

OSCILLATOR

(S)

|2SD1819STX

[TRANSISTOR

TRANSISTOR

|2SD1328STXRA

|

TRANSISTOR

O18

UNS1INTX

FF

is304-—[EVOPLMAIS

[PLAY

le

ee

CONNECTOR(S)

cN4———{RUROLZ7T

—_{CONNECTOR(8P)

FAC

RISZAI606T

—

|FFC

CONNECTOR(6P)

z

S|

soins

RJJ36T01-2¢6

UNS210TX

UND210TX

UNS1147X

DIODE

(S)

3

D2-5

D301,

302

MA728TX

LN1261CTR

VARIABLE

RESISTOR(S)

1

EVUTOVAOSA54

|

VOLUME

CONTROL

Panasonic RQ-SX44 User manual

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