Toshiba Kt-r2 User manual

i6bA

STEREO

CASSETTE

RECORDER

KT—R2

CONTENTS

1:

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DISASSEMBLY

INSTRUCTIONS

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CABINET...............-.

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22

Name

Label

(RP-S2)

Nameplate

(KT-R2)

TOSHIBA

amg

STEREO

CASSETTE

RECORDER

MM

MODEL

NO.

KT-R2

POWER

SOURCE

~

pc

6vV

|}

*?

SUM-3

(AA

SIZE

CELL)x4

TOSHIBA

CORPORATION

MADE

IN

JAPAN

632

Name

Label

(RP-S2)

(AY,

YY,

EY,

MY)

TOSHIBA

Toshiba

FM

STEREO

TUNER

PACK

TY,

Fas]

Oo]

od

ON)

USE

IN

COMBINATION

WITH

TOSHIBA

STEREO

CASSETTE

PLAYER

KT-S2

TOSHIBA

CORPORATION

MADE

IN

GAPAN

(TA,

TC)

TOSHIBA

FM

STEREO

Secs

eli

ed

MODEL

NO.

RP-S2

USE

IN

COMBINATION

WITH

TOSHIBA

STEREO

CASSETTE

PLAYER

KT-S2

TOSHIBA

CORPORATION

1

On|

eM

-WOb

4=>.¢-V

iV

lalon

|

TOSHIBA

MADE

IN

JAPAN

ROLS

[<4

PLAY/|RADIO]

ON]

button

[m

4

STOP/EJECT,

[RADIO]

OFF]

button

FUNCTION/PAUSE]

switch

|

:

[@

|REC!]

record

button

Pee

FF/MQTS]

fast-forward/MOTS

button

paver

el

be

REW/MOTS]

rewind/MOTS

[RADIO]

/TAPE)

button

[

(

[RADIO]

indicator

lamp

[

[D

|

[REC/BATT]

indicator

beirut

iMOTS

S|

SK/EDITOR]

button

-

IN

6V]

jack:

[PEAY/BATT]

indicator

Tomy

#0

nd

————-One-point

stereo

microphone

[MIC/AUX]

microphone/auxiliary

input

jack

r—[PHONES]

jack

EXT.

SPEAKER]

jack

Figute:

t.

[a

INPUT)

input

selector

|

Ae]

selector

:

poe

NE)

switch

(HIGH/

LOW)

Eee

nase,

er

counter

and

reset

button

Tuning

dial

pointer

[TUNING]

knob

acct

Yas

————

[STEREO/MONO]

switch

When

a

received

FM

stereo

program

is

disturbed

by

ex-

cessive

noise,

set

this

switch

to

MONO.

Otherwise,

usually

set

this

switch

to

STEREO.

OCK]

tab

tacit

ca

Figure

2.

ISASSEMBLY

INSTRUCTIONS

CABINET

BACK

REMOVAL

PAN

Screw

PAN

Screw

ip

ha

hadt

1.4¢

x

4mm

1.76

x

11mm

On

ee

Chromium-plated

)

2.

Loosen

each

set

screw

(A)

and(B)

on

the

reverse

side

9

®

of

the

back

cabinet,

two

set

screws(C)on

the

bottom

side

and

two

set

screws(D)on

the

flank

side

for

union

with

the

front

cabinet.

The

back

cabinet

will

be

ready

for

removing.

Battery

Cover

Figure

3.

Figure

4,

BID

Screw

2¢

x

8mm

©)

Chromium-plated

PAN

Screw

oN

f

1.49

x

3mm

Y

Chromium-plated

Figure

5.

=

®

BID

Tapping

Screw

€

BID

Tapping

Screw,

RED

FRONT

PANEL

REMOVAL

2%

x

6mm

\%

2.68

x

8mm

1.

Remove

the

back

cabinet.

2.

Loosen

and

remove

one

mechanical

set

screw

(E).

3.

Loosen

and

remove

one

set

screw

(F)

for

assemblying

G

the

microphone

and

(DC

in

6V)

jack

©.

The

front

(DIC

in

6V)

cabinet

is

now

ready

for

removing.

sack

FLT

Tapping

Screw

BLK

|

Figure

6.

HOW

TO

OPEN

P.C.

BOARD

1.4¢

x3.5mm

(1)

1.

Remove

the

back

cabinet.

~

aap

2.

Remove

the

PC

plate

and

one

set

screw(H)

for

the

mechanical

body.

3.

Open

the

cassette

cover

and

remove

the

base

for

the

*

t

#

fGN

rr

mechanical

body

and

the

set

screw

(1)

for

the

connector,

Figure

7.

REPAIRING

FM

TUNER

PACK

1.

Remove

six

special

screws

Gh)

on

the

bottom

side

of

3.

Open.

the

cassette

cover

of

the

recorder

and

insert

the

tuner

pack.

into

the

body

with

the

cabinet

top

removed.

This

2.

Remove

the

cabinet

top

of

the

tuner

pack.

particular

condition

permits

also

the

inspection

of

the

pattern

side

of

the

tuner

pack

PC

plate.

J)

Special

Tapping

Screw

Figure

8.

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KT—R2

3.

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12.

|

KT—R2

:

Generator

Couping

Hook-Up

4.

ALIGNMENT

INSTRUCTIONS

S

Curve

Supply

Figure

16.

Figure

17.

FM-RE

ALIGNMENT

BIgune)

9;

Turn

on

the

signal

generator

and

the

VTVM,and

allow

a

fifteen-minute

warm-up

period.

_

Connect

the

signal

generator

output

through

a

75

ohm

dummy

antenna

across

FM

ANT.

Connect

the

VTVM

across

a

15K

ohm

dummy

load.

Adjust

the

signal

generator

frequency

as

indicated

in

FM-RF

ALIGNMENT

CHART,

and

maintain

a

sufficient

]

.

Q201

signal

output

level

to

provide

a

measurable

indication.

E

SIO

R204

5.

Proceed

as

outlined

in

the

FM-RF

ALIGNMENT

CHART.

FM-RF

ALIGNMENT

CHART

step

|

Signal

Generator

Radio

Dial

Setting

Remarks

Figure

13.

|

87.5

MHz

Tuning

Knob

fully

OCS.

Coil

Adjust

for

maximum

LOO2

Output

indication

BwWN

=

Counterclockwise

(Lowest

Frequency)

EM-IF

ALIGNMENT

|

2

108

MHz

Tuning

Knob

fully

OSC.

Trim

Adjust

for

maximum

, ;

Clockwise

Sere

1.

Turn

on

both

sweep

generator

and

oscilloscope,

and

allow

a

fifteen-minute

warm-up

period.

(Highest

Frequency)

C004

output

indication

2.

Connect

the

RF

SWEEP

SIGNAL

OUTPUT

from

the

signal

generator

through

the

loop

antenna

to

the

receiver.

3

Repeat

steps

1

and

2

as

required.

RF

Coil

L001

Adjust

for

maximum

Tune

to

signal

Ant.

Trim.

Output

indication

C003

5.

Proceed

as

outlined

in

the

FM-IF

ALIGNMENT

CHART.

106

MHz

FM-IF

ALIGNMENT

CHART

3.

Connect

the

oscilloscope

vertical

input

directly

to

the

test

point

L

or

R=

and

connect

the

shielded

lead

to

the

9OMH

2

4.

Connect

the

SWEEP

VOLTAGE

OUTPUT

of

the

sweep

generator

to

the

oscilloscope.

5

Ee

Repeat

steps

4

and

5

as

required.

CAUTION:

When

realigning

the

FM

Receiving

Frequency,

the

highest

end

of

the

frequency

range

should

not

ae

be

more

than

108

MHz

and

the

lowest

end

of

the

frequency

range

should

not

be

less

than

87.5

MHz,

Connect

sweep

Sweep

Tuning

Knob

|

Set

scope

for

con-

Turn

the

coil

T102

fully

in

order

to

comply

with

FTZ

regulations

in

West

Germany.

generator

Output

to

generator

of

|

fully

counter-|

necting

output

counterclockwise

to

obtain

poco

ocer

oe

a

three-turn

loop

10.7

MHz

clockwise

signal

from

TUN

a

single

peak.

Fig.

16

antenna

of

10cm

center

freq.

|

(Highest

OUT

to

vertical

Adjust

coil

T1101

in

order

To

signal

generator

diameter.

with

10.7

Frequency.)

|

axis

of

scope

‘’V”

until

the

best

single

peak

(SG

imp.

50

ohm)

To

receiver

MHz

marker.

and

sweep

gener-

is

obtained.

ator

output

to

Finally

turn

the

coil

T102

i

:

E

horizontal

axis

to

obtain

S

curve.

Fig.

17

7

pee

75

ohm

dummy

antenna

FREE

RUN

FREQUENCY

ALIGNMENT

nécord

Play

wacke

Head

a

IF

Sweep

Test

Adjust

R204

under

no

signal

condition

so

as

to

obtain

76

kHz

+

150

Hz.

\

Receiver

under

test

FM

Sweep

Generator

SWEEP

VOLTAGE

OUTPUT

RECORD/PLAYBACK

HEAD

ADJUSTMENT

A

6.3

kHz

standard

tape

must

be

used

for

this

adjustment.

Connect

a

VTVM

or

an

oscilloscope

to

the

EXT

Speaker

jack

and

adjust

the

azimuth

by

using

a

phillips

screwdriver

to

maintain

the

maximum

output

voltage.

Figure

18.

Record/Playback

Head

Adjustment

3-turn

Loop

Antenna

located

near

the

LOO1

Figure

14.

KT—R2

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MECHANISM

EXPLODED

VIEW

Figure

23.

ee

|

_KT-R2

KT-R2

|

(1)

(2)

Figure

24.

8.

MOTOR

REPLACEMENT

1.

MOTOR

PULLEY

REMOVAL

Put

a

preheated

soldering

iron

on

the

upper

part

of

the

pulley

to

melt

the

metal

glue

between

the

motor

pulley

and

the

shaft

of

the

motor

and

pull

the

motor

pulley

upward

strongly.

(See

Fig.

25)

Caution:

Do

not

scorch

your

fingers.

2.

MOTOR

PULLEY

INSTALLATION

Maintain

a

gap

(1mm)

between

motor

and

motor

pulley

as

shown

in

Fig.

26

and

apply

a

little

metal

glue,

LOCTITE

601

(22964085)

from

the

top

of

the

motor

pulley.

Spread

the

glue

between

them

by

reciprocating

the

pulley

and

then

fix

it

while

keeping

the

adequate

gap

for

one

minute.

Caution:

Do

not

put

giue

around

part

A

in

Fig.

26.

Soldering

Iron

t

Motor

Pulley

Motor

Figure

25.

A

Little

Metal

Glue~

Gap

\

Motor

Pulley

yo

Imm

T

(A)

“

Keeping

for

1

minute.

Motor

Figure

26.

Toshiba KT-R2 User manual

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