Technics Rs-x102 User manual

ORDER

NO.

AD9103044C8

Service

Manual

Cassette

Deck

Dolby

NR-Equipped

S-X

0

Stereo

Double

Cassette

Deck

R

1

2

Color

(K)...

Black

Type

DiC

[etsy

system]

ick

Country

Code

Area

Continental

Europe.

Great

Britain.

F.R.

Germany

and

Italy.

(K)

Asia,

Latin

America,

Middle

Near

East

and

Africa.

Oceania.

MECHANISM

SERIES

(AR300)

SPECIFICATIONS

M@

CASSETTE

DECK

SECTION

Wow

and

flutter

0.1

%

(WRMS)

Fast

forward

and

rewind

times

Deck

system

Stereo

cassette

deck

Approx.

110

seconds

with

C-60

cassette

tape

Track

system

4-track,

2-channel

Input

sensitivity

and

Impedance

Heads

LINE

60

mV/47

kQ

(tape

deck

2)

rec/play

Permalloy

head

Output

voltage

and

impedance

erasing

Double-gap

ferrite

head

LINE

400

mV/800

Q

(tape

deck

1)

play

Permalloy

head

Motors

(tape

deck

2)

Capstan/reel

table

drive

§

DC

servo

motor

WM

GENERAL

(tape

deck

1)

Capstan/reel

table

drive

|©§

DC

servo

motor

Recording

system

AC

bias

Power

consumption

15

W

Bias

frequency

80

kHz

Dimensions

(W

x

H

x

D)

360

x

129

x

285

mm

Erasing

system

AC

erase

(14-3/16"

x

§-3/32”

x

11-7/32")

Tape

speeds

4.8

cm/sec.

(1-7/8

ips)

Weight

3.7

kg

(8.1

Ib.)

Frequency

response

(wio

Dolby

NR)

NORMAL

30

Hz~16

kHz

40

Hz~15

kHz

(DIN)

cro,

30

Hz~16

kHz

40

Hz~15

kHz

(DIN)

Note:

METAL

30

Hz~18

kHz

Specifications

are

subject

to

change

without

notice.

40

Hz~17

kHz

(DIN)

Weight

and

dimensions

are

approximate.

SIN

(signal

level

=

max

recording

level,

CrO.

type

tape)

*

Dolby

noise

reduction

manufactured

under

license

Dolby

B

NR

ON

66

dB

(CCIR)

from

Dolby

Laboratories

Licensing

Corporation.

Dolby

NR

OFF

56

dB

(A

weighted)

“Dolby”

and

the

double-D

symbol

are

trade

marks

of

Dolby

Laboratories

Licensing

Corporation.

Technics

RS-X102

|

Mi

CONTENTS

Page

ACCESSORIES.

..........-sssessssssctsesrsccsncssnssenssensonsensonensecsesnsseunerssees

2

INTERNAL

CONNECTION

OF

FL

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CONNECTIONS

otaare

WIRING

CONNECTION

DIAGRAM.

LOCATION

OF

CONTROLS

........ccssesressesressesccrsnsreoesensseneons

3,4

TERMINAL

FUNCTION

OF

1C7S...........cssssssseecessoeseensoenee

DISASSEMBLY

INSTRUCTIONG..........ccccsscssssssssssseseneeseens

5~8

PACKING

bascccie.

rect

eocicatecish

eck

ee

ae

tise

cet

eee

duaataneel

«

INFORMATION

ON

POWER

SUPPLY

FIXTURE.................00+

9

REPLACEMENT

PARTS

LIST...

MEASUREMENTS

AND

ADJUSTMENTG...............

-

10~12

RESISTORS

&

CAPACITORG...........

BLOCK

DIAGRAM........scscccsssesssssssncsssnsecsesserserseneesssensneenens

13,

14

EXPLODED

VIEWS

(Cabinet

parts).

PRINTED

CIRCUIT

BOARDG...........-cssssssssssseseessesensrstees

15~18

REPLACEMENT

PARTS

LIST...........00000

SCHEMATIC

DIAGRAM

.........s:scssccsessssssersesseaseerenenensenees

19~23

EXPLODED

VIEWS

(Mechanica!

parts)..

TERMINAL

GUIDE

OF

IC’S,

TRANSISTORS

AND

REPLACEMENT

PARTS

LIST

............0+0000+

DIODES.

.........sscessssesnsersvsnnssssnsnsesssessensencesenennerenernenenseseneoss

23

Mi

ACCESSORIES

———"

3-core

flat

cable

L-type

cable

Stereo

connection

cables

(REX0346)

:

(SJP2257T)

:

(SJP2249-3)

Amplifier

Make

connections

in

the

numbered

sequence

by

using

the

included

cables.

Stereo

connection

cable

ON

ag

cunnent

OFF

7"

SENSOR

AC

OUTLET

ge

yy

©)

[ed

UNSWITCHED:

White

(L)

Red

(R)

=

SYSTEM

CONTROL

[1]

Connect

the

stereo

connection

cables.

[2]

Connect

the

L-type

cable.

[3]

Connect

the

flat

cable.

SYSTEM

CONTROL

OUT

This

terminal

is

used

to

connect

a

Technics

compact

disc

player

or

a

Technics

stereo

graphic

equalizer

with

the

“SYSTEM

CONTROL

IN”

terminal.

This

terminal

is

used

to

connect

a

Technics

muiti

com-

pact

disc

player

with

the

“CONTROL”

terminal.

RAO

Aw

Cassette

deck

SYSTEM

IN

QUT

(TO

CD)

INE

OU)

mn

Goose

SYSTEM

CONTROL

OUT}

(CONTROL

|

Rs-x102

Mi

LOCATION

OF

CONTROLS

AUTO

REVERSE

recone

marsax

DECK

2

Controls

common

to

both

tape

decks

Indicators

common

to

both

tape

decks

[4]

DECK

ON/OFF

switch

(DECK)

RC1

PLAY

<@

PLAY

RC2

[2]

Synchro-start

button

(SYNCHRO

START)

This

button

can

be

used

to

start

a

tape-to-tape

recording,

simultaneously

starting

tape

deck

1

(the

playback

deck)

and

tape

deck

2

(the

recording

deck).

[A]

Input

level

meter

During

playback,

this

meter

indicates

the

level

of

the

record-

ed

sound

source.

[3]

Tape-to-tape

recording

tape-speed

selector

During

recording,

it

indicates

the

level

being

recorded,

(TAPE

EDIT

SPEED)

adjusted

by

the

recording-level

control.

This

selector

can

be

used

to

select

the

recording

speed

when

a

tape-to-tape

recording

is

made.

Dolby

noise-reduction

indicator

(DOLBY

NR)

This

indicator

illuminates

when

the

Dolby

noise-reduction

[4]

Recording-level

contro!

(REC

LEVEL)

button

is

pressed.

This

control

can

be

used

to

regulate

the

recording

level

of

tape

deck

2.

Reverse-mode

indicators

(

=

,

c>

,

o>)

One

of

these

indicators

illuminates

to

show

which

of

the

reverse

modes

was

selected

by

the

reverse-mode

selector.

[5]

Reverse-mode

selector

(REVERSE

MODE)

This

selector

can

be

used

for

selection

of

the

reverse

mode

(for

either

playback

or

recording).

[D]

Edit-recording

indicators

(EDIT

MODE,

CD,

x1,

x2)

The

words

“EDIT

MODE”

and

“x1

(or

"x

2”)

indicator

will

[6]

Dolby

noise-reduction

button

(DOLBY

NR)

illuminate

when

a

tape-to-tape

recording

is

made.

This

button

is

used

to

reduce

the

“hissing”

noise

heard

from

The

words

“EDIT

MODE”

and

“CD”

indicator

will

illuminate

the

tape.

when

a

CD

edit-recording

is

made.

RS-X102

Tape

deck

1

STEREO

DOUBLE

CASSETTE

DECK

Act

mae

Tape

deck

2

CEB

die

ac2

okey

ne

eee}

Toe)

oo.

SE

Ec

Controls

applicable

to

tape

deck

1

and/or

2

[1]

Cassette

holder

[2]

Eject

button

(4

EJECT)

This

button

can

be

used

to

open

the

cassette

holder.

[3]

Pause

button

(If

PAUSE)

This

button

can

be

used

to

temporarily

stop

the

tape

playback

or

recording,

on

tape

deck

2

only.

[4]

Record

button

(REC)

This

button

can

be

used

to

change

tape

deck

2

to

the

recor-

ding

stand-by

mode.

[5]

Automatic-record-muting

button

(AUTO

REC

MUTE)

This

button

can

be

used

to

make

a

silent

interval

on

the

tape

during

recording,

on

tape

deck

2

only.

[6]

Fast-forward/cue,

rewind/review

buttons

(<<,

>)

These

buttons

are

used

to

advance

or

rewind

the

tape.

Dur-

ing

playback,

these

buttons

are

used

to

cue

or

review

while

listening

to

the

contents

at

high

speed.

Forward-side

playback

button

(>

PLAY)

This

button

can

be

used

to

start

the

playback

or

recording

of

side

‘‘A”’

of

the

cassette

in

tape

deck

2

only.

(The

tape

will

then

begin

moving

in

the

left-to-right

direction.)

Stop

button

(lf

STOP)

This

button

can

be

used

to

stop

tape

movement.

[9]

Reverse-side

playback

button

(<]

PLAY)

This

button

can

be

used

to

start

the

playback

or

recording

of

side

"B"

of

the

cassette

in

tape

deck

2

only.

(The

tape

will

then

begin

moving

in

the

right-to-left

direction.)

Tape

counter

reset

button

(RESET)

This

button

can

be

used

to

reset

the

tape

counter

indication

(for

tape

deck

2

only)

to

“000”.

Fast-forwardicue

button

(>>)

This

button

is

used

to

advance

the

tape.

During

playback

this

button

is

used

to

cue

the

contents

at

high

speed.

[12]

Rewind/review

button

(<<<)

This

button

is

used

to

rewind

the

tape.

During

playback

this

button

is

used

to

review

the

contents

at

high

speed.

Indicators

applicable

only

to

deck

1

or

2

RC.1

PLAY

DOLBY

NR

=

CD

OD

EDIT

MODE.

x1

CD

x2

[A]

Forward-side

indicator

(>)

This

indicator

illuminates

during

playback

or

recording

on

tape

deck

2

to

indicate

that

side

‘A’

of

the

tape

is

being

used.

Reverse-side

indicator

(<<)

This

indicator

illuminates

during

playback

or

recording

on

tape

deck

2

to

indicate

that

side

‘‘B"

of

the

tape

is

being

used.

Remote-control

indicator

(R.C.1/R.C.2)

This

indicator

illuminates

to

indicate

that

this

tape

deck

can

now

be

controlled

by

the

remote-control

transmitter

(included

with

tuner).

[D]

Playback

indicator

(PLAY)

When

this

indicator

illuminates

steadily,

it

indicates

that

this

tape

deck

is

in

the

playback

mode

or

the

recording

mode

(for

tape

deck

2

only).

When

it

flashes

continually,

this

is

an

indication

that

tape

deck

2

is

in

the

pause

mode

or

the

recording

stand-by

mode.

[E]

Recording

indicator

(EZ)

This

indicator

illuminates

to

indicate

that

tape

deck

2

is

in

the

recording

stand-by

mode

or

is

recording.

[F]

Tape

deck

2

counter

Indicates

the

amount

of

tape

movement.

RS-X102

Mi

DISASSEMBLY

INSTRUCTIONS

“ATTENTION

SERVICER”

Some

chassis

components

may

have

sharp

edges.

Be

careful

when

disassembling

and

servicing.

Ref.

No.

2

i

NO;

|

Removal

of

the

cabinet

Removal

of

the

front

panel

ass’y

|

Procedure

«Remove

the

6

screws

(O~@).

Ref.

No.

3

Procedure

1-2-3

Removal

of

the

main

P.C.B.

Rear

panel

Front

panel

ass’y

2.

Remove

the

2

connectors

(CP1,

CP2).

3.

Remove

the

5

flat

cables

(CN3,

CN4,

CN5,

CN6,

CN8).

4.

Remove

the

front

panel

ass’y

in

the

direction

of

arrow.

How

to

remove

the

flat

cable

¢Pull

out

the

flat

cable

while

1.

Lift

the

connector.

pressing

the

connector.

2.

Pull

out

the

flat

cable.

(CN3,

CN5,

CN8)

(CN4,

CN6)

Pa

Flat

cable

5

My

Connector

,

Ole

at

Connector

2.

Remove

the

5

screws

(O~@).

Removal

of

the

mechanism

units

(DECK

1,

DECK

2)

Ref.

No.

4

Removal

of

the

FL

meter

P.C.B.

Procedure

1-2-5

Procedure

FL

meter

P.C.B.

Cassette

holder

(DECK

1)

Eject

button

(DECK

1)

Eject

button

(DECK

2)

1.

Remove

the

2

screws

(O,

@).

2.

Remove

the

FL

meter

P.C.B.

in

the

direction

of

arrow.

; ;

Cassette

holder

Mechanism

unit

(DECK

2)

r

Ref.

No.

6

Procedure

1-2—-4—5-6

Removal

of

the

mechanism

angle

@

Removal

of

the

mechanism

unit

(DECK

1)

1.

Press

the

eject

button

and

open

the

cassette

holder.

2.

Remove

the

4

screws

(@~®).

i

Removal

of

the

mechanism

unit

(DECK

2)

1.

Press

the

eject

button

and

open

the

cassette

holder.

2.

Remove

the

4

screws

(@~®).

Removal

of

the

eject

angle,

eject

buttons,

and

eject

lever

Procedure

ox

Eject

rod——____

:

2S

YA

Eject

lever

Eject

button

(DECK

1)

i.

4

©

Eject

button

(DECK

2)

3.

Pull

out the

claw

of

the

eject

4.

Turn

the

eject

lever

in

the

rod

in

the

direction

of

direction

of

arrow

@,

and

1.

Release

the

1

claw.

arrow

®,

remove

the

eject

remove

the

eject

lever

in

the

2.

Pull

out

the

eject

angle

in

the

buttons

and

the

eject

rod

in

direction

of

arrow

@.

direction

of

arrow

®.

the

direction

of

arrow

@.

—6-—

RS-X102

Removal

of

the

cassette

lid

Removal

of

the

cassette

holder

(DECK

1,

DECK

2)

(DECK

1,

DECK

2)

Procedure

1324-5

—6—7-8--9

Cassette

lid

(DECK

1)

Cassette

lid

©

Damper

gear

ass’y

(R)

(DECK

2)

e

Lift

the

cassette

lid

in

the

direction

of

arrow

@

and

remove

it

in

the

direction

of

arrow

©.

1.

Remove

the

2

screws

(O,

@).

2.

Remove

the

damper

gear

ass’y

(L)

and

damper

gear

Ref.

No.

:

ass’y

(R).

10

Removal

of

the

operation

P.C.B.

Procedure

1-24-56

78-910

Cassette

holder

(DECK

1)

SS

SN

Rec

level

knob

XS

;

&

x

SS

1.

Remove

the

rec

level

knob.

.

Remove

the

springs

in

the

direction

of

arrow

©.

.

Remove

the

ribs

in

the

direction

of

arrow

©.

.

Remove

the

cassette

holder

in

the

direction

of

arrow

@.

oe

©

3.

Release

the

14

claws.

|

2.

Remove

the

4

screws

(@~®@).

RS-X102

Ref.

No.

P

11

|

How

to

check

the

main

P.C.B.

|

0

Ps

Procedure

%

1-11

Rear

panel

Front

panel

ass’y

3.

Remove

the

4

screws

(O~®).

4.

Remove

the

front

panel

ass’y

in

the

direction

of

5.

Remove

the

bottom

board

ass’y.

arrow.

6.

Reinstall

the

front

panel

ass’y

to

the

main

P.C.B.

RS-X102

@

INFORMATION

ON

POWER

SUPPLY

FIXTURE

*

LOCATION

(Front

view)

(Rear

view)

Voltage

selector

(110/127

V/220

V/240

V)

Turntable

terminal

(DC

12V,

0.1A)

Spare

terminal

(AC

16V,

0.16A)

Tuner

terminal

(AC

9V,

0.6A)

Tape

Deck

terminal

(AC

11V,

1A

x2)

Power

switch

AC

cord

(AC

50/60

Hz

110/127/220/240V)

FL

Display

terminal

(AC

3V,

0.2A)

¢

SCHEMATIC

DIAGRAM

(Reference)

Spare

01

0.0

|

AC

16V

0.16A

Turntable

OC12V

O.1A

r

|

Fuse

|

F1(250V

1A)

|

L

eT

Fuse

F3

(125V

1A)

|

eerie

|

4

|

4

|

4

VOLTAGE

SELECTOR

Haare

|

Tuner

|

ACQV

0.68

BRN

f

'

Fuse

F4

(125V

2A)

to

SA

(AC

SOHz/60Hz

1¥0V/127V/220V

/240V)

{

Tape

Deck

t

fesse

ACI

1Ax2

{

|

Fuse

3K

Power

Supply

Fixture

Parts

No.

|

saris

©

(E,

EG)

af

as.....ccccccscsesseeeeeee

$ZZA1062C

u

!

*

(EB)

area

..

SZZA1063C|

|

y

FE

(125v

0A)

C(GN)

Blea

scrinccns

canst

chs

SZZA1064C|

|

ee

ea

©

(GO)

area.

ccecssesseesesseeeeees

SZZA1065C

1

eee

ad

\

FL

Display

!

GRY

AC3V

0.28

{

O

rar

eace

¢«

HOW

TO

CONNECT

Voltage

controller

Power

Supply

Fixture

MAIN

P.C.B.

(1)

AC

IN

Supply

the

same

voltage

as

indicated

on

the

©

voltage

selector

of

power

supply

Fixture.

RS-X102

|

MIMEASUREMENTS

AND

ADJUSTMENTS

Measurement

Condition

Rec.

level

control;

Maximum

¢

Dolby

NR

selector

switch;

Off

¢

Reverse-mode

selector

switch;

—_~

©

Make

sure

heads

are

clean

¢

Tape-to-tape-recording

tape-speed

selector;

X1

e

Make

sure

capstan

and

pressure

roller

are

clean

¢

Judgeable

room

temperature

20+5°C

(68+9°

F)

Measuring

instrument

¢

EVM

(Electronic

Voltmeter)

¢

ATT

(Attenuator)

*

Oscilloscope

e¢

DC

voltmeter

¢

Digital

frequency

counter

¢

Resistor

(600Q)

¢

AF

oscillator

Test

tape

¢

Head

azimuth

adjustment

(8kHz,

—20dB);

QZZCFM

¢

Playback

gain

adjustment

(315Hz,

0dB);

QZZCFM

*

Tape

speed

adjustment

(3kHz,

—

10dB);

QZZCWAT

©

Overall

frequency

response,

Overall

gain

adjustment

¢

Playback

frequency

response

(315Hz,

12.5kHz,

10kHz,

Normal

reference

blank

tape

;

QZZCRA

8kHz,

4kHz,

1kHz,

250Hz,

125Hz,

63Hz,

—20dB);

CrO,

reference

blank

tape;

QZZCRX

QZZCFM

Metal

reference

blank

tape;

QZZCRZ

e

Adjustment

Points

MAIN

PC.B.

(Leh)

(Roh)

mA

OVERALL

FREQUENCY

RESPONSE

ADJ.

DECK

2:

VR303(Lch}

{VR302

(Recht

PLAYBACK

GAIN

ADu.

DECK

I:

VR3(Lch

{VR4(Rch)}

TAPE

SPEED

ADJ.

DECK

2:

VR5(Lch)

{VRE(Rch)}

DECK

2

:vR902

(XI),

VR9OK

X2)

DECK

I:

VRSO3(X1}

vré

[][9](9][9]

VR302

vR903

[9]

[@]

[@]VR90!

vR902

VR301

4

vrs

|)

He

ERASE

CURRENT

ADv.

1c901

|

DECK

2:

vR30I

ERASE

CURRENT

MODE

TEST

POINT

ADJ.

TEST

POINT

(Soldered

Surface)

(DECK

2)

OVERALL

GAIN

ADu.

VR7

[@

DECK

2:

VR7(Lch)

{VR8(Rch)}

HEAD

AZIMUTH

ADJUSTMENT

(DECK

1/2)

1.

Playback

the

azimuth

adjustment

portion

(8kHz,

—20dB)

of

the

test

tape

(QZZCFM).

Vary

the

azimuth

adjusting

screw

until

the

outputs

of

the

L-CH

and

R-CH

are

maximized

and

the

lissajous

waveform,

as

illustrated,

approaches

0

degrees.

Note:

If

L-CH

and

R-CH

are

not

maximized

at

the

same

point,

2.

3.

adjust

to

the

point

where

the

levels

of

each

channel

are

maximized

and

equal.

Perform

the

same

adjustment

in

the

play

mode.

After

the

adjustment,

apply

screwlock

to

the

azimuth

adjusting

screw.

TAPE

SPEED

ADJUSTMENT

(DECK

1/2)

Normal

speed

1

2.

3.

.

Shift

the

Tape-to-tape

recording

tape-speed

selector

to

“X1”

and

press

the

synchro-start

button.

Playback

the

middle

portion

of

the

test

tape

(QZZCWAT).

Adjust

Deck

1

=

VR903

and

Deck

2=

VR902

so

that

the

output

is

within

the

standard

value.

High

speed

.

Shift

the

Tape-to-tape

recording

tape

speed

switch

to

“X2”

and

press

the

synchro-start

button.

.

Playback

the

middle

portion

of

the

test

tape

(QZZCWAT).

.

Adjust

Deck

2=VR901

so

that

the

output

is

within

the

standard

value.

Note:

The

Normal

speed

adjustment

must

be

done

before

the

High

speed

adjustment.

E.HEAD

R/P.

HEAD

Azimuth

Screw

Azimuth

Screw

Azimuth

Screw

(Forward)

(Reverse)

(DECK

2)

(DECK

1)

Fig.

2

LINE

OUT

Digital

frequency

counter

(DECK

1)Standard

value:

3000

+

15

Hz

[Normal

(X1)],

6000

+

600

Hz

[High

(X2),

only

confirmation}

(DECK

2)Standard

value:

3000

+

15

Hz

[Normal

(X1)],

6000

+

30

Hz

[High

(X2)]

PLAYBACK

GAIN

ADJUSTMENT

(DECK

1/2)

1.

2.

Playback

the

gain

adjusted

portion

(315Hz,

0dB)

of

the

test

tape

(QZZCFM).

Adjust

Deck

1=VR3

(L-CH)

[[VR4

(R-CH)]]

and

Deck

2

=VRS5

(L-CH)

[[VR6

(R-CH)]]

so

that

the

output

is

within

the

standard

value.

Standard

value:

0.4V+0.5dB

LINE

OUT

ERASE

CURRENT

ADJUSTMENT

(DECK

2)

1.

Insert

the

Metal

blank

test

tape

(QZZCRZ)

and

set

the

unit

to

the

Record

Pause

mode.

2.

Adjust

VR301

so

that

the

output

between

TP5

and

GND

ERASE

HEAD

EVM

is

within

the

standard

value.

(Electronic

Standard

value:

190+5mA

(Metal)...EVM

Reading:

190+

5mV

Voltmeter)

OVERALL

FREQUENCY

RESPONSE

(DECK

2)

.

Insert

the

Normal

blank

test

tape

(QZZCRA)

and

set

the

unit

to

the

Record

Pause

mode.

.

Apply

a

reference

input

signal

(1kHz,

—24dB)

through

an

attenuator.

.

Attenuate

the

signal

by

20dB

and

adjust

the

frequency

from

50Hz~

10kHz.

.

Record

the

frequency

sweep.

.

Playback

the

recorded

signal

and

assure

that

it

is

within

the

range

shown

in

Fig.

8

in

comparison

to

the

reference

frequency

(1kHz).

.

If it

is

not

within

the

standard

range,

adjust

VR303

Fig.

8

(L-CH)

and

VR302

(R-CH)

so

that

the

frequency

level

is

within

the

standard

range.

e

Level

up

in

high

frequency

range

Increase

the

bias

current.

e

Level

down

in

high

frequency

range

...Decrease

the

bias

current.

7.

Repeat

steps

2~6

above

using

the

CrO,

tape

(QZZCRX)

and

the

Metal

tape

(QZZCRZ)

increasing

the

frequency

range

to

12.5kHz

(50

Hz~

12.5kHz).

.

Assure

that

the

level

is

within

the

range

shown

in

Fig.

9.

Normal

Overall

frequency

response

chart

(NR

OUT)

50Hz

100Hz

200Hz

SOOHZ

1kHz

2kHz

CrO,

Metal

Overall

frequency

response

chart

(NR

OUT)

LINE

IN

LINE

OUT

50Hz

100Hz

200Hz

SOOHzZ

1kHz

2kHz

12.5kHzZ

Fig.

9

HS

OOF

AF

oscillator

OVERALL

GAIN

ADJUSTMENT

(DECK

2)

1.

Insert

the

Normal

blank

test

tape

(QZZCRA)

and

set

the

unit

to

the

Record

pause

mode.

2.

Apply

a

reference

input

signal

(1kHz,

—24dB).

Attenuate

the

output

so

that

its

level

becomes

0.4V.

.

Record

this

input

signal.

LINE

IN

LINE

OUT

.

Playback

the

signal

recorded

in

step

3

above,

and

assure

that

the

output

is

within

the

standard

value.

.

If

it

is

not

within

the

standard

value,

adjust

VR7

(L-CH)

and

VR8

(R-CH).

.

Repeat

the

step

2~5

above

until

the

output

is

within

the

standard

value.

Standard

value:

0.4V+0.5dB

AF

oscillator

ATT

PLAYBACK

FREQUENCY

RESPONSE

(DECK

1/2)

1.

Playback

the

frequency

response

portion

(315Hz,

12.5kHz~63Hz,

—20dB)

of

the

test

tape

(QZZCFM).

2.

Assure

that

the

frequency

response

is

within

the

range

shown

in

Fig.

6

for

both

L-CH

and

R-CH.

LINE

OUT

63Hz

100Hz

200Hz

|500Hz

1kHz

2kHz 4kHz

12.5kHz

8kHz

Fig.

6

BLOCK

DIAGRAM

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|

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12)

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|

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DECK

2

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HEAD

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RESPONSE

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test

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BUFFER

AMP

SWITCHING

(METER)

(RESET)

F24MHz

F>4MHz

CONTROL

(To

CD)

Ic901

IN

;

2SDI450RSTA

<a

M50963-245SP

MUTING

SYSTEM

MICRO

COMPUTER

i

CONTROL

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R714

R715

R716

R717

R718

RTI9

R720

R721

R722

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HALL

IC

DECKI

<1)

CIRCUIT

MECHANISM

(DECK2)

CIRCUIT

—

21—

—2—

RS-X102

Hi

SCHEMATIC

DIAGRAM

(arts

list

on

pages

28~31.)

(This

schematic

diagram

may

be

modified

at

any

time

with

development

of

new

technology.)

Notes:

¢$701:

e

$702:

¢

$703:

©

$704:

¢

$708:

¢

$709:

°$711:

©

$712:

©$713:

©S$714:

©$715:

S716:

°$717:

°$718:

©$S719:

¢$720:

©

$722:

$724:

©

$951:

©

$952:

©

$953:

$971:

©

$972:

¢

$973:

S974:

$975:

$976:

Mi

TERMINAL

GUIDE

OF

IC’S,

TRANSISTORS

AND

DECK

1

Stop

switch

(Mf

STOP).

DECK

1

Fast-forward

switch

(»P).

DECK

1

Rewind

switch

(<<).

DECK

1

Forward-side

playback

switch

(>

PLAY).

Reverse

mode

switch

(REVERSE

MODE;

=,

CD

,©o0).

Dolby

noise-reduction

selector

switch

(Dolby

NR).

DECK

2

Stop

switch

(lM

STOP).

DECK

2

Fast-forward

switch

(»P).

DECK

2

Rewind

switch

(<<).

DECK

2

Forward-side

playback

switch

(>

PLAY).

DECK

2

Reverse-side

playback

switch

(<J

PLAY).

DECK

2

Record

switch

(@

REC).

DECK

2

Pause

switch

(§—|

PAUSE).

Synchro-start

switch

(SYNCHRO

START).

Tape-to-tape

recording

tape-speed

selector

switch

(TAPE

EDIT

SPEED).

DECK

2

Tape

counter

reset

switch

(RESET).

DECK

2

Automatic-record-muting

switch

(Q

AUTO

REC

MUTE).

DECK

ON/OFF

switch

in

“on”

position

(DECK).

DECK

1

Mode

switch

in

“off”

position.

DECK

1

Cassette

half

detection

switch

in

“off”

position.

DECK

1

ATS

(CrO,)

switch

in

“off”

position.

DECK

2

Mode

switch

in

“off”

position.

DECK

2

Cassette

half

detection

switch

in

“off”

position.

DECK

2

Rev.

Rec

Inhibit

switch

in

“off”

position.

DECK

2

For.

Rec

Inhibit

switch

in

“off”

position.

DECK

2

ATS

(CrO,)

switch

in

“off”

position.

DECK

2

ATS

(Metal)

switch

in

“off”

position.

Resistance

are

in

ohms

(Q),

1/4

watt

unless

specified

otherwise.

1K=1,000

(Q),

1M=1,000k

(Q)

©

Capacity

are

in

micro-farads

(uF)

unless

specified

otherwise.

¢

All

voltage

values

shown

in

circuitry

are

under

no

signal

condition

and

playback

mode

of

deck

2

with

volume

control

at

minimum

position

otherwise

specified.

<

D>

sdienscs

Voltage

values

at

playback

mode

of

deck

1.

(

Disseedveis

Voltage

values

at

record

mode.

For

measurement

us

EVM.

¢

Important

safety

notice

Components

identified

by

A

mark

have

special

characteristics

important

for

safety.

When

replacing

any

of

these

components,

use

only

manufacturer’s

specified

parts.

°(

ammee<+B>

seme

)

indicates

+B

(bias).

e(

-

<~B>

saeee

)

indicates

—B

(bias).

e(

««

)

indicates

the

flow

of

the

playback

signal.

¢(

c=

=>)

)

indicates

the

flow

of

the

record

signal.

¢

The

supply

part

number

is

described

alone

in

the

replacement

parts

list.

Production

Part

No.

Supply

Part

No.

1C7,

552

M5218AL

M5218L

*

Caution!

IC

and

LSI

are

sensitive

to

static

electricity.

Secondary

trouble

can

be

prevented

by

taking

care

during

repair.

*

Cover

the

parts

boxes

made

of

plastics

with

aluminum

foil.

*

Ground

the

soldering

iron.

*

Put

a

conductive

mat

on

the

work

table.

*

Do

not

touch

the

legs

of

IC

or

LS!

with

the

fingers

directly.

DIODES

M5218AL

DN6851ALB

|

a

23

2SJ164PQRTA

Gs

2SB1357EFTA

2SD2037EFTA

;

CXA1101P

HD404302SA02

AN7351K

M50963-245SP

AN7384N

22

42

\

KSB564ACYGTA

2SB1030RSTTA

KSD471ACYGTA

2SD1450RSTA

KSA1175YGTA

KSC2785YGTA

2SC3311AQSTA

DTA114ESTP

E

B.

DTC114ESTP

Cg

E

CB

2SB1240QRTV6

MTZJ5R6BTA

a

MAteSTA

MTZJ8R2CTA

5

a

Cathode

MA167TA

Ca

A

MA7OOTA

a

B

1SR35200TB

A

CE

RVD1SS133TA

Anode

MA4240MTA

ae

Cathode

A

MA4062LTA

Pg

Cathode

oS

Anode

RS-X102

Mi

INTERNAL

CONNECTION

OF

FL

¢

Grid

connection

diagram

A

a

ae

a

ee

nm)

©)

oy]

Dig

oh)

oQ

iS!

bom

L

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DCOCOUDDODDOOOOooDoD

OOOO

goooOoooooOeoooOoRoDogRoOooogooogpooOD

B12.

Bll

B18

BS

B8

B?

B&

BS B4

B3

B2

Bl

26

R

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=

DOOCOODOOODOOoDoooooOOooooOoooCoesooOooooooOeoOoooOooooooOoooooooooo

P19

-

~

d d

d

B12

oe

eeeteetener

P13

=

~

e

fe

=

-

S|

Pid

oe

a

¢

connection

32|31|30|29|28|27]26]25]24]23]22]21}20]19|16|17|16|15|14[13/12[11

10]

9

[8

|

7

| 6

|

5

|4|3

FUF

N

P|P|P

P

NIN|7{N

4/3;2;1)N

2|2

Cc

12}11/10

7

cicjGajc

G/G|G/Gic

Note

W@

WIRING

CONNECTION

DIAGRAM

(DECKI}

PLAYBACK

{DECK

2)

HEAD

R/P

HEAD

ERASE

HEAD

SYSTEM

LINE

CONTROL!

|

CONTROL!

|

IN/OUT

(TO

CO)

(OUT)

(IN)

(Leh)

(Rech)

i

Yt

Rg

=

pl

—_

Ro

f=

oa

MECHANISM

(DECKI)P.C.B.

[egoreration

P.C.B.

a

MOTOR

{DECK2)

C

reer

caren|

J971

MECHANISM

(DECK2)P.C.B.

Mi

TERMINAL

FUNCTION

OF

IC’S

RS-X102

¢

1C901

(M50963-245SP):

MICROCOMPUTER

(This

microcomputer

is

used

for

mechanical

operation.)

P6

(1)

Counter

reset

signal

of

deck

2

(“RESET”:

“L”,

others:

“H”)

AVsg

(GND)

Vree

P6

(3)

Counter

reset

signal

of

deck

1

(“RESET”:

“L”,

others:

“H”)

Variable

voltage

level

signal

of

rec.

level

volume

Peak

voltage

terminal

of

rec.

signal

Operation

key

switches

Deck

2:

STOP,

F.F./REW,

PLAY,

REC,

PAUSE,

SYNCHRO

START,

X1/X2,

counter

reset

P6

(0)

AN

(7)

>

1)

>

N

(6)

AN

(5)

Operation

key

switches

Deck

1:

STOP,

F.F./REW,

F.

PLAY,

Dolby

B/C,

Meter

range

counter

reset

al

Ea

AN

(3)

=

eee

tape

det.

signal

of

Leader

tape

det.

signal

of

deck

1

“AUTO

REC

MUTE”

key

switch

P4

(1)

signal

of

deck

2

(“ON”:

“L”,

“OFF”:

“H")

18

Pai

en

|

Mute

signal

of

line

out

PS

(5)

(Mute

“ON”:

“H”,

Mute

“OFF”:

SL)

i.

=

ia

Mute

signal

with

Cue/Review

action

(Mute

“ON”:

“H”,

Mute

“OFF”:

“L”)

Rec.

mute

signal

of

deck

2

(Mute

“ON”:

“H”,

Mute

“OFF”:

“ry

0

Division

Function

Playback

equalizer

select

signal

with

tape

edit

of

deck

1

(Normal:

“H”,

X2

edit:

“L”)

CD

Synchro

rec.

signal

(CD

STOP:

“H”,

CD

PLAY:

“L”)

CD

Synchro

rec.

possible/impossible

signal

(possible:

“L”,

impossible:

“H”)

“AC

POWER

OFF”

det.

terminal

GND

terminal

Reset

signal

(“L’”

=RESET,

Normal:

“H”)

Clock

OSC

terminal

Not

used,

open

She

cess

Ea

P5

(7)

Test

terminal

(Normal=“H”)

P5

(6)

Model

select

(Normal:

“L”)

raf

re

[

1

[a

a

fo»

|

mew

|

+

|

Resranem

mode

ont

|

em

|

+

|

eae

ee

ia

eS

Reverse

rec.

inh.

switch

of

deck

2

(“ON”:

lig

“OFF”:

“H")

Forward

rec.

inh.

switch

of

deck

2

(“ON”:

“L”,

“OFF”:

“H”)

Reel

rotation

pulse

signal

of

deck

2

Dolby

B

“ON/OFF”

select

signal

(“ON”:

al

Pade

“OFF”:

“H)

P1

(5)

Not

used,

open

P41

(4)

Playback

amp.

select

signal

(Deck

2-P.B:

“L’”,

others: “H”)

Pt

(3)

Bias

OSC

“ON/OFF”

select

signal

(SON”:

od

Oger

“OFF”:

“H”)

10

;

Dolby

circuit

encord/decord

select

signal

(encord:

“L”,

decord:

“H”)

Not

used,

open

Bus

clock

signal

Bus

data

signal

Forward

rec.

inh.

switch

of

deck

1

(“ON”:

“L",

“OFF”:

“H”)

Reverse

rec.

inh.

switch

of

deck

1

(“ON":

“L",

“OFF:

“H”)

Cassette-half

det.

switch

of

deck

1

(SON”:

au

Bia

“OFF”:

“H”)

Mechanism

mode-switch

of

deck

1

(SON”:

id

Bigs

“OFF”:

“H”)

Mechanism

plunger

“ON/OFF”

select

signal

of

deck

2

(“ON”:

“HH”,

“OFF”:

“L")

|

RS-X102___

RS-X102

|

i¥fe)

Division

Mechanism

motor

“ON/OFF”

select

signal

of

deck

2

(“ON”:

“H”,

“OFF”:

“L”)

Mechanism

motor

speed

select

signal

of

deck

2

(‘*X1":

“H”,

“XQ”:

“Ly

Mechanism

plunger

“ON/OFF”

select

signal

of

deck

1

(“ON”:

“H”,

“OFF":

“L”)

Mechanism

motor

speed

select

signal

of

deck

1

(X1":

“H”,

“x2”:

“Ly

Mechanism

motor

“ON/OFF”

select

signal

of

deck

1

(“ON”:

“H”,

“OFF”:

“L”)

Mechanism

reel

rotation

pulse

signal

of

deck

1

Power

switch

(“ON”:

“L”,

“OFF”:

“H”)

Te)

Division

Segment

signal

for

FL

display

_

Not

used,

open

Pull

down

power

supply

terminal

(~

Voc)

Peel

pulse

signal

of

deck

2

Tape

counter

reset

terminal

of

Tape

counter

reset

terminal

of

deck

1

GND

terminal

Power

supply

terminal

24

VRIN

Reset

terminal

(“RESET”:

“H”)

Test

terminal

Clock

OSC

terminal

(4MHz)

Power

supply

terminal

Grid

signal

for

FL

display

25

SIGL

26

27

N

w

>

<|2

o

|

Mmo|

Dv

ESET

29

30

o|o|]~a4/

2

A)

a]

m

3/9/8

wo oo

QO,

Oo.

o*°

Oa

31

wo

Nh

vcc

Not

used,

open

Not

used,

open

bb

i)

js

|s-e/2-8-

Qo.

@

o°N

PACKING

Note:

This

packing

not

illustrated

Ref.

No.

A1

(A1-1,

A1-2,

A1-3).

Refer

to

the

packing

on

page

38

of

the

service

manual

for

Model

No.

SU-X102,

Order

No.

AD9103049C8.

P2(PAD®)

}

P2(PAD

@))

P|

FRONT

<PAD

®@

®

©

Part

No.:

RPN0383-1>

Mi

REPLACEMENT

PARTS

LIST

+

Important

safety

notice:

Components

identified

by

A\

mark have

special

characteristics

important

for

safety.

When

replacing

any

of

these

Notes

:

components

use

only

manufacturer’s

specified

parts.

Part

Name

&

Description

DTC114ESTP

|

TRANSISTOR

_{

INTEGRATED

CIRCUIT

(S)

DTAL14ESTP

|

TRANSISTOR

{

2SB1030QTA

|

TRANSISTOR

AN7384N

{ELECTRIC

VOLUME

KSC2785YGTA

|

TRANSISTOR

AN7351K

PLAYBACK/REC

AMP

DICLI4ESTP

=

—

|

TRANSISTOR

M5218.

REC

LEVEL

CONTROL

DTCLI4ESTP

|

TRANSISTOR

CXA1101P

DOLBY

NR

DTALI4ESTP

=,

TRANSISTOR

HD404302SA02

|MICROCOMPUTER;

FL

METER

DTCLI4ESTP

=|

TRANSISTOR

Mo218L

BUFFER

AMP

KSAL175YGTA

|

TRANSISTOR

M50963-245SP

MICROCOMPUTER:

MECHANICAL

28B1240-P

TRANSISTOR

DN6851ALB

TALL

(DECK1)

_{DTCLI4ESTP

[TRANSISTOR

HALL

(DECK2)

2SB1030QTA

|

TRANSISTOR

DN6851ALB

4

DICLI4ESTP

=

TRANSISTOR

(S)

2SB1030QTA

|

TRANSISTOR

DICII4ESTP

|

TRANSISTOR

2SJ164PQRTA

|

TRANSISTOR

KSAL175YGTA

|

TRANSISTOR

KSAL175YGTA

|

TRANSISTOR

DTC1I4ESTP

=|

TRANSISTOR

|KSC2785YGTA

|

TRANSISTOR

25B1240-P

TRANSISTOR

KSC2785YGTA

|

TRANSISTOR

2SD1450RSTA

|

TRANSISTOR

DICLI4ESTP

=

|

TRANSISTOR

DTALI4ESTP

|

TRANSISTOR

T

2803311A-Q

|

TRANSISTOR

KSC2785YGTA

|

TRANSISTOR

KSBS64ACYGTA

|

TRANSISTOR

DTALI4ESTP

=|

TRANSISTOR

KSD471ACYGTA

|

TRANSISTOR

DTC1I4ESTP

=|

TRANSISTOR

KSAL175YGTA

|

TRANSISTOR

KSC2785YGTA

|

TRANSISTOR

2SD2037EFTA

|

TRANSISTOR

DTAL14ESTP

=|

TRANSISTOR

2SB1357EFTA

|

TRANSISTOR

DICLI4ESTP

=

—

|

TRANSISTOR

2SD2037EFTA

|

TRANSISTOR

|

KSBS64ACYGTA

|

TRANSISTOR

|

Technics RS-X102 User manual

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