Technics RS-B205 Bedienungsanleitung

ORDER

NO.

HAD8602333C2

Service

Manual

OC

[Beusve:

Dolby

B

«

C

NR-Equipped

Stereo

Cassette

Deck

RS-D550W

MECHANISM

SERIES

SPECIFICATIONS

Deck

system

Track

system

Heads

REC/PLAY

Erasing

Motor

Recording

system

Bias

frequency

Erasing

system

Tape

speed

Frequency

response

Metal

Cro,

Normal

Stereo

cassette

deck

4-track,

2-channel

MX

head

Double-gap

ferrite

head

1

motor

system

AC

bias

50kHz

AC

bias

4.8cm/sec.

20Hz~16,000Hz

30

Hz~15,000

Hz

(DIN)

40Hz~15,000Hz+3dB

20Hz~15,000Hz

30Hz~15,

000

Hz

(DIN)

40Hz~14,000Hz+3dB

20Hz~15,000Hz

30Hz~15,000

Hz

(DIN)

40Hz~14,000Hz+3dB

S/N

(Signal

level=max.

recording

level,

CrO,

type

tape)

Dolby

C

NR

in

Dolby

B

NR

in

NR

out

72dB

(CCIR)

66

dB

(CCIR)

56dB

(A

weighted)

Technics

Cassette

Deck

RS-B205

Color

(K)...Black

Type

(S)...Silver

Type

(K)

(S)

}

[E]

All

European

areas

except

United

Kingdom.

(K)

(S)

|

[EK]

United

Kingdom.

(K)

(S)

|

[EGA]....F.R.

Germany.

Wow

and

flutter

0.08%

(WRMS)

+0.2%

(DIN)

Fast

forward

and

rewind

time

Approx.

105

seconds

with

C-60

cassette

tape

Input

sensitivity

and

impedance

MIC

0.25mV/400Q~10kQ

LINE

60mV/47kQ

DIN...[EGA]

only

0.25mV/3.3kQ

Output

voltage

and

impedance

LINE

400

mV/3.2kQ

HEADPHONES

65mV/8Q

Power

consumption

ow

Power

supply

(E]

[EGA]

.................

AC

50H2/60Hz

220V

EK]

ssteeiecticciccen

tics

AC

50H2/60Hz

240V

Dimensions

(W

x

H

x

D)

430

x

115

x

220mm

Weight

3.0kg

*

Dolby

noise

reduction

manufactured

under

license

from

Dolby

Laboratories

Licensing

Corporation.

“Dolby”

and

the

double-D

symbol

are

trade

marks

of

Dolby

Laboratories

Licensing

Corporation.

Matsushita

Electric

Trading

Co.,

Ltd.

P.O.

Box

288,

Central

Osaka

Japan

RS-B205

@

CONTENTS

©

Location

Of

COntrol............esecsssssssseeeseeeeees

POPS

AtlOM

2.525

5cc0

ccs

ccecsecacienaccizete

ccs.

nccacsbenscreetes

©

Disassembly

Instructions

...............

cee

e

Measurement

and

Adjustment

Methodes

©

Resistors

and

Capacitors

..........

eee

e

Printed

Circuit

Boards

Wiring

Connection

Diagram................::sceeeeeees

Page

ceacsvesvenes

2

©

Printed

Circuit

Board..............cccsecscesssesssesseeeee

9,

10

jeshienvaectl

3

©

Block

Diagram...

ccsecssesssessecsreststeseessces

It,

12

Siasdssisvate

4

©

Electrical

Parts

List

...........cc

ce

esssscsssscesesssesssstneces

13

aplaceseest

5~7

¢

Schematic

Diagram..............ccceeeessessee

1316

saws

7,8

e

Mechanical

Parts

Location.................cc0000.

17,

18

©

Cabinet

Parts

Location...

cee

eescesssseseeeees

19,

20

eerie

8

M@

LOCATION

OF

CONTROL

Power

switch

(power)

Cassette

holder

Recording

indicator

(rec)

Level

meters

Tape

selectors

(tape

selector)

(peak

level

meter)

Input-level

control

(input

level)

Record

button

(rec/

©)

Playback

button

(play/>)

Rewind

button

(rew/

<€

<4)

Fast-forward

button

(ff/>

>)

Stop/eject

button

(stop/eject/M/A)

Pause

button

(pause/&fl)

Recording

Tape

counter/

balance

control

reset

button

(tape

(balance)

counter/reset)

Microphone

jacks

(mic)

Dolby

noise-

reduction

switch

fF

(Dolby

NR)

Headphones

jack

(phones)

Input

selector

(input

selector)

Dolby

noise-reduction

selector

(Dolby

NR)

ORDER

NO.

HAD8602333C2-A

Dolby

B

-

C

NR-Equipped

Stereo

Cassette

Deck

RS-

B205

*

This

booklet

includes

the

specifications

and

adjusting

procedures

of

Model

RS-B205

(Order

No.

HAD8602333C2)

written

in

German,

French

and

Spanish.

e

File

this

booklet

together

with

the

service

manual

of

Model

RS-B205.

<

O

”)

=

>

wi

=)

¢

Dieses

Bichlein

umfaBt

die

technischen

Daten

und

Justierverfahren

fir

Modell

RS-B205

(Bestell

Nr.

HAD8602333C2)

in

den

Sprachen

Deutsch,

Franzésisch

und

Spanisch.

¢

Bewahren

Sie

dieses

Bichlein

zusammen

mit

dem

Service-Handbuch

fir

Modell

RS-B205

auf.

¢

Cette

brochure

comprend

les

spécifications

et

les

procedures

de

mises

du

Modéle

RS-B205

(N°

d’order

HAD8602333C2)

écrites

en

allemand,

en

frangais

et

en

espagnol.

¢

Classer

cette

brochure

en

méme

temps

qu’avec

le

manuel

de

service

du

Modéle

RS-B205.

¢

Este

librito

incluye

las

especificaciones

y

procedinientos

de

Modelo

RS-B205

(Pedido

N°

HAD8602333C2)

escritas

en

alem4n,

francés

y

espafiol.

¢

Guardar

este

librito

juntamente

con

el

manual

de

servico

de

Modelo

RS-B205.

DEUTSCH

@

TECHNISCHE

DATEN

System

Stereo-Cassettendeck

Gerauschspannungsabstand:

Spuren

4

Spuren,

2

Kanale

(Signalpegel=max.

Aussteuerungspegel,

CrO,-Band)

Tonképfe

mit

Dolby-C-Rauschunterdriickung

72dB

(CCIR)

Aufnahme/Wiedergabe

MX-Kopf

mit

Dolby-B-Rauschunterdriickung

66

dB

(CCIR)

Léschen

Ferrit-Kopf

mit

Doppelspalt

ohne

Rauschunterdriickung

56dB

(nach

A

bewertet)

Motor

1-Motor

Gleichlauschwankungen

0,08%

(WRMS)

Aufnahmesystem

Wechselstrom-Vormagnetisierung

+0,2%

(DIN)

Vormagnetisier

ungsfrequenz

50kHz

Umspulzelt

ca.

105

s

fir

C-60-Cassette

Léschsystem

Wechselstrom-Vormagnetisierung

Eingangsempfindlichkeit

und

impedanz

Bandgesch

windigkeit

4,8cm/s

MIC

0,25

mV/400Q~10kQ

Frequenzgang

LINE

60mV/47kQ

Reineisenbander

20

Hz~

16.000

Hz

DIN

0,25mV/3,3kQ

30Hz~

15.000

Hz

(DIN)

Ausgangsspannung

und

Impedanz

40Hz~15.000

Hz+3dB

LINE

400mV/3,2kQ

CrO.-Bander

20

Hz~

15.000

Hz

HEADPHONES

65mV/8QO

30Hz~15.000

Hz

(DIN)

Stromaufnahme

9W

40Hz~

14.000

Hz+3dB

Stromversorgung

Normalbander

20Hz~

15.000

Hz

Netz

50Hz/60Hz,

220V

fir

Europa

ohne

England.

30

Hz~

15.000

Hz

(DIN)

Abmessungen

(B

x

H

xT)

430

x

115

x

220mm

40Hz~14.000Hz+3dB

Gewicht

3,0kg

mM

MESSUNGEN

UND

EINSTELL

METHODEN

MeBbedingungen

©

Eingangspegelregler;

Maximum

¢Uberprafen,

ob

die

Bandantriebsachse

und

die

¢

Balanceregler;

Mitte

Andruckrolle

sauber

sind.

e

Bandsorten-WahIschaiter;

Normal

eUmgebungstemperatur

fir

die

Messung;

20+5°C

¢

Dolby-Rauschunter

driickungs-Schalter;

out

(68

+9

°F)

eUberpriifen,

ob

die

Képfe

sauber

sind.

MeBinstrumente

¢Elektronisches

Voltmeter

(EVM)

e

Dampfungswiderstand

¢

Oszilloskop

¢

Gleichstrom-Voltmeter

¢Digitaler

Frequenzmesser

eWiderstand

(600Q)

¢

Audiofrequenz-Oszillator

—_—-i1—

Testband

¢

Kopfazimut-Justierung

(@kHz,

—20dB);

QZZCFM

*Justierung

der

Bandgeschwindigkeit

(kHz,

—10dB);

QZZCWAT

¢Wiedergabe-Frequenzgang

(315Hz,

12,5kHz,

10kHz,

8kHz,

4kHz,

1kHz,

250Hz,

125kHz,

63Hz,

—20dB);

QZZCFM

eJustierung

des

Wiedergabe-Verstarkungsgrades

(315Hz,

0dB);

QZZCFM

¢

Gesamtfrequenzgang,

Gesamtverstarkungsgrad-Justierung

«Normales

Referenz-Leerband;

QZZCRA

¢

CrO.2-Referenz-Leerband;

QZZCRX

«

Reineisen-Referenz-Leerband;

QZZCRZ

Kopfazimut-Justierung

Aufnaham/Wiedergabe

1.

Die

AnschluBverbindungen

fir

=

die

bs

Testgerate

sind

in

Abb.

1

gezeigt.

2.

Den

Azimut-Justierungsteil

(@kHz,

—20dB)

des

Testbandes

(QZZCFM)

wiedergeben

und

die

Winkeljustierungs-Einstellschraube

so

verstellen,

daB

der

Ausgang

vom

linken

Azimathi:Sehralibe

und

rechten

Kanal

maximal

wird.

(Wenn

die

Abb.

2

Abb.

1

Justierpositionen

fiir

den

linken

und

:

rechten

Kanal

verschieden

sind,

ist

eine

Position

zu

finden,

wo

der

Ausgang

des

linken

und

rechten

Kanals

ausgelichen

ist,

und

dann

ist

die

Justierung

durchzufiihren.)

.

Gleichzeitig

eine

Lissajous-Wellenform

ziehen

und

Phasenablenkung

eliminieren.

Bandgeschwindigkeits-Justierung

.

INE

OUt

1.

Der

Testaufbau

ist

in

Abb.

3

gezeigt.

2.

Den

mittleren

Teil

des

Testbandes

(QZZCWAT)

wiedergeben.

3.

Den

Drehwiderstand

im

Motor

so

justieren.

daB

die

Ausgangsleistung

2

dem

Standard-Wert

entspricht.

Digitaler

Standard-Wert:

3000+

20Hz

Frequenzmesser

Wiedergabe-Frequenzgang

.

Der

Testaufbau

ist

in

Abb.

4

gezeigt.

.

Den

Wiedergabe-Frequenzgangteil

(315Hz,

12,5kKHz~63

Hz,

—20dB)

des

Testbandes

(QZZCFM)

wiedergeben.

.

Uberprifen,

ob

der

Frequenzgang

innerhalb

des

in

Abb.

5

fir

den

linken

und

rechten

Kanal

gezeigten

Bereichs

liegt.

LINE

OUT

63Hz

100Hz

200H2

|

500HZ

1kHz

2kHz

4kHz

8kHz

12.5kHz

315Hz

Abb.

5

Justierung

des

Wiedergabe-Verstarkungsgrades

1.

Der

Testaufbau

ist

in

Abb.

4

gezeigt.

2.

Den

fir

den

Wiedergabe-Verstarkungsgrad

justierten

Teil

(8315Hz,

OdB)

des

Testbandes

(QZZCFM)

wiedergeben.

3.

Den

Drehwiderstand

1,

(linker

Kanal)

{Drehwiderstand

2

(rechter

Kanal)}

so

justieren,

daB

die

Ausgangsleistung

dem

Standard-Wert

entspricht.

Standard-Wert:

0,4V+0,5dB

(0,02V)

m@

OPERATION

Recording

1

Power:

“on”

(=

—>

=)

2

Press

and

insert

the

tape

cassette.

3

Press.

7

Press.

(Recording

stand-by

mode)

8

Begin

the

program

source

1 1

Press.

(Recording

will

begin.)

to

be

recorded.

To

erase

recorded

sounds

1.

Set

the

Dolby

noise-reduction

switch

to

the

“out”

position.

2.

Set

the

input

level

control

to

the

minimum

(0)

position.

3.

Prepare

in

the

same

way

as

for

recording,

and

then

let

the

tape

run.

Note

that

any

sounds

on

the

tape

will

be

automatically

erased

if

a

new

recording

is

made

on

that

part

of

the

tape.

Timer

Recording/Playback

The

side

to

be

recorded

facing

outward.

Part

where

tape

is

exposed

facing

downward.

eee

Lencesoepotaednpeannserte

RS-B205

4

Select

the

noise-reduction

system.

5

Select

the

sound

source.

6

Set

to

position

corres-

ponding

to

type

of

tape

to

be

used.

9

Adjust

the

recording

level.

(Refer

to

below.)

1

0

Adjust

left/right

volume

balance.

Adjustment

of

the

recording

level

The

numbers

which

you

should

use

as

a

guide

for

the

adjust-

ment

of

the

tape

level

will

differ

depending

upon

the

type

of

tape.

Normal

tape

CrO,

tape

Metal

tape

If

an

audio

timer

(option)

is

connected

to

this

unit,

recording

of

a

radio

broadcast,

or

tape

playback,

will

automatically

begin

at

the

preset

time.

Connect

the

AC

power

cord

of

this unit

to

the

power

source

outlet

of

the

timer.

Timer

recording

1.

Prepare

for

recording.

(Follow

steps

1

through

10

of

“Recording”.

After

adjusting

the

recording

level,

press

the

stop

button

and

the

pause

button.)

Set

the

timer

to

the

desired

recording-start

time.

Press

the

record

button.

(At

the

set

time,

the

power

will

switch

ON

and

the

broad-

cast

will

be

recorded.)

bad

After

setting

the

timer

Make

sure

that

the

power

switch

is

set

to

the

“on”

position.

—3-—

Timer

playback

1.

Rewind

the

tape

to

the

position

from

which

you

want

playback

to

begin.

2.

Set

the

timer

to

the

desired

playback-start

time.

3.

Press

the

playback

button.

(At

the

set

time,

the

power

will

be

switched

ON

and

the

playback

will

begin.)

After

setting

the

timer

Make

sure

that

the

power

switch

is

set

to

the

“on”

position.

m@

DISASSEMBLY

INSTRUCTIONS

How

to

remove

the

mechanism

unit

Procedure

;

ject

butt

fig.

1).

55

1.

Push

the

eject

button

(see

fig.

1)

2.

Remove

the

4

screws

(@~@).

3.

Remove

the

counter

belt

(for

Case

Cover

mechanism.

Counter

LS

Eject

Button

:

7

<>

i

<2

Mechanism

Unit

Fig.

2

sage

i

How

to

remove

the

LED

meter

P.C.B.

saa

How

to

remove

the

volume

P.C.B.

1.

Remove

the

2

screws

(@,

@).

2.

Pull

out

the

volume

knob.

e

Remove

the

2

screws

(@, ©).

eRemove

the

4

tabs

aside.

\

LED

Meter

P.C.B.

:

9

@

Volume

P.C.B.

Fig.

3

Fig.

4

Procedure

132-35

1.

Remove

the

2

screws

(@,

@).

455

2.

Open

the

2

tabs

aside,

and

then

pull

down

the

back

chassis.

?

Serial

Number

a

-

ry

*

Serial

No.

Indication

©

The

serial

number

plate

of

the

product

is

attached

to

the

back

chassis

(shown

in

fig.

6).

—

4

—

Bees

740he)

™@

MEASUREMENT

AND

ADJUSTMENT

METHODES

VR3,

4

Overall

gain

adj.

S

VR3

=VR2

VR301,

302

Bias

current

adj.

<4

TP1

Measurement

Condition

einput

level

controls;

Maximum

¢

Balance

controls;

Center

eTape

select

switch;

Normal

Dolby

NR

switch;

Out

Measuring

instrument

©

EVM

(Electronic

Voltmeter)

Oscilloscope

¢

Digital

frequency

counter

©

AF

oscillator

Test

tape

¢Head

azimuth

adjustment

(8kHz,

—20dB);

QZZCFM

Tape

speed

adjustment

(3kHz,

—10dB);

Q2ZCWAT

*

Playback

frequency

responce

(315Hz,

12.5kHz,

10

kHz,

8kHz,

4kHz,

1kHz,

250Hz,

125Hz,

63Hz,

—20dB);

QZZCFM

Head

azimuth

adjustment

Tape

speed

adjustment

VR

VR1,

2

7

Playback

gain

adj.

(Motor)

TP2

¢Make

sure

heads

are

clean

Make

sure

capstan

and

pressure

roller

are

clean.

e

Judgeable

room

temperature

20+5°C

(68+9°F)

e

ATT

(Attenuator)

¢DC

voltmeter

e

Resistor

(600Q)

¢

Playback

gain

adjustment

(315Hz,

0dB);

QZZCFM

¢

Overall

frequency

response,

Overall

gain

adjustment

«Normal

reference

blank

tape;

QZZCRA

*

CrO,

reference

blank

tape;

QZZCRX

¢

Metal

reference

blank

tape;

QZZCRZ

1.

Test

equipment

connection

is

shown

in

*od/Playback

Head

Fig.

1.

2.

Playback

the

azimuth

adjusted

part

(8kHz,

—20dB)

of

the

test

tape

(QZZCFM)

and

regulate

the

angle

adjusting

screw

so

that

the

outputs

of

L-CH

and

R-CH

are

maximized.

(When

the

adjusting

positions

are

different

with

L-CH

and

R-CH,

find

a

position

where

the

Azimuth

Screw

Fig.

2

outputs

of

L-CH

and

R-CH

are

balanced,

and

then

make

the

adjustment.)

.

At

the

same

time,

draw

a

lissajous

waveform

and

eliminate

phase

deflection.

Tape

speed

adjustment

1.

Test

equipment

connection

is

shown

in

Fig.

3.

2.

Playback

the

middle

part

of

the

test

tape

(QZZCWAT).

3.

Adjust

the

VR

in

the

motor

so

that

the

output

is

within

the

standard.

Standard

value:

3000+

20Hz

Playback

frequency

response

.

Test

equipment

connection

is

shown

in

Fig.

4.

Digital

frequency

counter

.

Playback

the

playback

frequency

response

part

(315Hz,

12.5kHz~63

kHz,

—20dB)

of

the

test

tape

(QZZCFM).

.

Chech

that

the

frequency

is

within

the

range

shown

in

Fig.

5

for

both

L-CH

and

R-CH.

LINE

OUT

SOHz

100Hz

200Hz

S500Hz

1kHz

2kHz

5kHz

10kHz

Fig.

5

Playback

gain

adjustment

1.

Test

equipment

connection

is

shown

in

Fig.

4.

2.

Playback

the

playback

gain

adjusted

part

(315Hz,

OdB)

of

the

test

tape

(QZZCFM).

3.

Adjust

VR1,

(L-CH)

{VR2

(R-CH)}

so

that

the

output

is

within

the

standard.

Standard

value:

0.4+.0.5dB

(0.02V)

Bias

current

adjustment

1.

Test

equipment

connection

is

shown

in

Fig.

6.

2.

Set

the

tape

selector

switch

to

the

normal

position.

3.

Insert

the

normal

tape.

4.

Press

the

record

and

pause

buttons.

5.

Minimize

the

input

level

control

and

adjust

VR301

(L-CH)

{VR302

(R-CH)}

so

that

the

output

between

TP1

(L-CH)

{TP2

(R-CH)}

and

ground

is

within

the

standard.

.

After

that

check

in

the

same

way

as

for

CrO,

and

metal

tape.

9V

(Normal)

Reference

value:

14V

(CrO.)

17

V

(Metal)

Overall

frequency

response

.

Test

equipment

connection

is

shown

in

Fig.

7.

LINE

IN

LINE

OUT

.

Set

the

tape

selector

switch

to

the

normal

position.

.

Set

a

normal

blank

tape

(QZZCRA)

and

record

by

applying

oF

=

signal

(50Hz,

100Hz,

200Hz,

500Hz,

1kHz,

4kHz,

8kHz

and

&

HO

00

10kHz),

20dB

attenuated

from

the

reference

input

level

signal

“*

»sctlator

(1kHz,

—24dB).

.

Playback

the

signal

recorded

in

step

3,

and

check

that

the

level

of

each

output

frequency

is

within

the

range

shown

in

Fig.

8

in

comparison

with

the

reference

frequency

(1kHz).

.

If

it

is

not

within

the

standard

range,

adjust

the

bias

current

by

VR301

(L-CH)

{VR302

(R-CH)}

so

that

the

frequency

level

is

within

the

standard.

«

Level

up

in

high

frequency

range

Increase

the

bias

current.

*

Level

down

in

high

frequency

range

Decrease

the

bias

current.

.

After

that

increase

the

signal

recorded

on

CrO,

blank

tape

(QZZCRX)

and

metal

blank

tape

(QZZCRZ)

up

to

12.5kHz

and

adjust

in

the

same

way

as

mentioned

above

and

check

that

the

frequency

level

is

within

the

range

shown

in

Fig.

9.

+f

+468

+208

0dB

—20B

40B

60B

63Hz

100Hz

200Hz:

500Hz2

1kHz

2kHz 4kH2

8kHz

12.5kHzZ

315Hz

Fig.

8

Fig.

9

SOHz

100HzZ

200Hz

SOOHZ

1kHz

2kHz2

5SkHz

10kHz

Overall

gain

adjustment

.

Test

equipment

connection

is

shown

in

Fig.

7.

.

Set the

tape

selector

switch

to

the

normal

position.

.

Set

a

normal

blank

tape

(QZZCRA)

and

apply

the

reference

input

level

signal

(1kHz,

—24dB)

in

record

pause

mode.

.

Adjust

the

output

0.42V

by

attenuator

and

then

record.

.

Playback

the

signal

recorded

in

step

3,

and

check

that

the

output

is

within

the

standard.

.

If

it

is

not

within

the

standard,

adjust

VR3

(L-CH)

{VR4

(R-CH)}

and

repeat

the

step

(2),

(3)

and

(4)

until

the

output

is

within

the

standard.

Standard

value:

0.4V+0.05V

Dolby

NR

circuit

1.

Test

equipment

connection

is

shown

in

Fig.

10.

2.

Set

a

normal

tape

and

apply

1kHz

signal

in

record

pause

mode.

3.

Adjust

by

attenuator

so

that

the

output

between

terminal

7

of

10401

(L-CH)

{1C402

(R-CH)}

and

ground

is

12.3mV.

—

Dolby

B

(Encode

characteristic)

—

4.

Set

NR

switch

to

“Dolby

B”

and

change

the

input

signal

to

1kHz,

5kHz.

5.

Check

that

the

output

between

terminal

21

of

C401

(L-CH)

{!C402

(R-CH)}

and

ground

change

as

specified

from

the

level

in

NR

out

mode.

Standard

value:

6+

1.5dB

(1kHz),

8+

1.5dB

(5kHz)

—

Dolby

C

(Encode

characteristic)

—

6.

Set

NR

switch

to

“Dolby

C”

and

change

the

input

signal

to

1kHz,

5kHz.

7.

Check

that

the

output

between

terminal

21

of

1C401

(L-CH)

{IC402

(R-CH)}

and

ground

change

as

specified

from

the

level

in

NR

out

mode.

Standard

value:

11.5+1.5dB

(1kHz),

8.5+1.5dB

(5kHz)

@

RESISTORS

AND

CAPACITORS

AF

oscillator.

=

ATT

Notes:

1.

Part

numbers

are

indicated

on

most

mechanical

parts.

3.

The

unit

of

resistance

is

OHM

(Q).

Please

use

this

part

number

for

parts

order.

K=10009,

M=1000kQ

2.

Important

safety

notice.

4.

The

unit

of

capacitance

is

MICROFARAD

(uF).

Components

identified

by

/\

mark

have

special

charac-

P=10%yF.

teristics

important

for

safety.

When

replacing

any

of

these

components,

use

only

manufacturer’s

specified

parts.

Numbering

System

of

Resistor

Numbering

System

of

Capacitor

Type

Tolerance

ERD

—

:

Carbon

ERG

_ :

Metal

Oxide

ERC

:

Solid

:

Non-polar

Electrolytic

: :

50V

DC

:

+0.25pF

:

Electrolytic

:

50V

DC

:

+5%

:

Ceramic

:

6.

:

125V

DC

:

+10%

:

Ceramic

H :

500V

DC

:

+80%,

—20%

:

Polyester

: :

400V

AC

:

+20%

Area

:

Polyester

:

Polyester

:

Liquid

electrolyte

double

layer

capacitor

:

Ceramic

[earn

[penne

[vow]

forme

[penne

[van

%*

[E]

All

European

areas

except

United

Kingdom.

%*

[EK]

United

Kingdom.

%*

[EGA]

F.R.

Germany.

¢

RESISTORS

Ref.

No.

Part

No.

Part

No.

R1,2

ERDS2TJ223

22k

|

R47,

48

ERDS2TJ682

6.8k

|

R

403,

404

ERDS2TU562

5.6k

|

R

701

ERDS2TJ562

5.6k

R3,4

R

49,

50

ERDS2TJ272

2.7k

|

R

405,

406

ERDS2TJ332

3.3k

|

R702

ERDS2TJ472

4.7k

[EGA]

only

ERDS2TJ332

3.3k

|

R51,

52

ERDS2TJ222

2.2k

|

R

407,

408

ERDS2T102

1k

|

R

703,

704

ERDS2TJ363

36k

R5,6

ERDS2TJ222

2.2k

}

R53,

54

ERDS2TJ183

18k

|

R

409,

410

ERDS2TJ333

R

705

ERDS2TJ472

47k

R7,8

ERDS2TJ473

47k

|

R55,

56

ERDS2TJ391

390

R

706,

707

ERDS2TJ154

150k

R11,

12

ERDS2TJ102

1k

|

R57,

58

ERDS2TJ391

390

|

R411,

412

ERDS2TJ823

82k

|

R

708

ERDS2TJ152

1.5k

R17,

18

ERDS2TJ472

4.7K

}

R61,

62

ERDS2TJ102

1k

|

R413,

414

ERDS2TJ182

1.8k

|

R

802

ERDS2TJ473

47k

R

19,

20

ERDS2TJ101

100

|

R

63,

64

ERDS2Ty822

8.2k

|

R415,

416

ERDS2TJ512

5.1k

|

R

803

ERDS2TJ103

10k

R

23,

24

ERDS2TJ101

100

|

R

67,

68

ERDS2TJ390

39

|

R

417,

418

ERDS2TJ683

68k

R

25,

26

ERDS2TJ225

2.2M

|

R69,

70

ERDS2TJ103

10k

|

R419,

420

ERDS2TJ222

2.2k

|

R

804

ERDS2TJ683

68k

R2

ERDS2TJ820

R

81,

82

R

421,

422

ERDS2TJ823

82k

|

R

805,

806

ERDS2TJ103

10k

[EGA]

only

ERDS2TJ102

1k

|

R423,

424

ERDS2TJ331

330

|

R

807

ERDS2TJ223

22k

R

31,

32

ERDS2TJ564

560k

|

R

200

ERDS2TJ271

R

425,

426

ERDS2TJ473

47k}

R811

ERDS2TJ223

22k

R

33,

34

ERDS2TJ123

12k

R

600,601

A

ERDS2TJ102

1k

|

R815,

816

ERDS2TJ103

10k

R

35,

36

ERDS2TJ103

10k

|

R

201

ERDS2TJ680

68

|

R

604,

605

R

818

ERDS2TJ103

10k

R

37,

38

ERDS2TJ102

1k

|

R

202

ERD2FCG270

27

[EK]

only

A

ERQ14LKR56

0.56

|

R

819,

820

ERDS2TJ472

4.7k

R

39,

40

ERDS2TJ103

10k

|

R

300,

304

ERDS2TJ8R2

8.2

R

900

ERDS2TJ392

39k

R41,

42

ERDS2TJ222

2.2k

|

R

302,

303

ERDS2TJ683

68k

|

R

606,

607

R901

ERDS2TJ391

390

R

43,

44

ERDS2TJ153

15k

|

R

304

ERDS2TJ1RO

1

[EK]

only

A

ERQ14LK2R2

2.2

|

R

902

ERDS2TJ273

R

401,

402

ERDS2TJ242

700

ERDS2TJ681

680

[EK]

only

ERD2FCJ4R7

47

¢

CAPACITORS

Part

No.

l

Value

Ref.

No.

Part

No.

|

Value

Ref.

No.

Part

No.

Value

Ref.

No.

Part

No.

Value

ECEA1CU100

10

|

C

25,

26

ECEA1HU010

C

39,

40

ECKD1H122KB

0.0012

|

C

303

ECKD1H332KB

—_—(0.0033

ECKD1H122KB

0.0012

|

C

27,

28

ECQB1H682JZ

0.0068

|

C

41,

42

ECQB1H562JZ

0.0056

}|

C

304

ECEA1CU101

100

ECKDIH681KB

=

680p

|

C

29,

30

ECEA1HU010

C

43,

44

ECEA1HU010

1

|

C305

ECQP1393JZ

0.039

ECEAQJU101

100

|

C

31,

32

ECQB1H222sZ

0.0022

|

C

47,

48

ECEA1CU100

10

|

C

401,

402

ECCD1H820K

82p

ECEA1HU2R2

2.2

|

C

33,

34

ECQB1H822JZ

0.0082

|

C

49,

50

ECKD1H102KB

—-0.001

|

C

403,

404

ECQB1H472JZ

—-0.0047

ECEA1CU100

10

|

C

35,

36

ECEA1HU010

C

300,

301

ECFRIE222KAY

0.0022

|

C

405,

406

ECEA1CU100

10

ECQB1H472JZ

(0.0047

|

C

37,

38

ECKD2H331KB

—

330p

|

C

302

ECFD1H682KD

_0.0068

| C

407,

408

ECQM1H473JZ

—_(0.047

RS-B205

Ref.

No.

Part

No.

Value

Ref.

No.

Part

No.

Value

Ref.

No.

Part

No.

|

Value

Ref.

No.

Part

No.

C

409,

410

ECQM1H224JZ

0.22

|

C

419,

420

ECQM1H473JZ

—-0.047

|

C

602

A

ECEAQJU101

100

|

C

701,

702

ECEA1HU2R2

2.2

C

411,

412

ECEASOMR68R

0.68

|

C

421,

422

ECQM1H224JZ

0.22

C

703

ECKD1H2232F

0.0022

C

423,

424

ECEA50MR68R

0.68

|

C603

A

ECEAQJU471

470

|

C

800

ECEA1CU101

100

|.

C

413,

414

ECQB1H103NZ

0.01

|

C

425,

426

ECKD1H392KB

0.0039

|

C

604,605

A

ECKD1H223ZF

0.022

|

C

801

ECEA1CU331

330

C

415,

416

ECQB1H472JZ

0.0047

|

C

600

A

ECEA1AU332

3300

|

C

610,611

A

ECKD1H222ZF

0.0022

|

C

802

ECEA1CU470

47

C

417,

418

ECEA1CU100

40

|

C601

A

ECEA1AU102

1000

|

c

612

A

ECKD2H682PE

0.0068

|

C

803

ECEA1CU100

10

@

PRINTED

CIRCUIT

BOARDS

WIRING

CONNECTION

DIAGRAM

POWER

SUPPLY

P.C.B.

MAIN

P.C.B.

123456

[TTT

—

MOTOR

123456

7|0N

BReRmm

RECORD/

ERASE

HEAD

PLAYBACK

HEAD

S

e&

SLD

WHT

PNK

WHT

LED

METER

P.C.B.

TAPE

SELECT/

VOLUME

P.C.B.

RS-B205

1

2

3

4

5

6

7

8 9

@

PRINTED

CIRCUIT

BOARDS

Bi

MAIN

P.c.B.

fete

POWER

SUPPLY

P.C.B.

AC_IN

ee

AEE

Srercsnememmsinen?

‘ees

F

pesiasmemaicoosntnd

ee

sionsotimeneonenin,

To

Motor

(tape

WV/-

Metal)

‘APE

SELECTOR

Hi

(tape

I/

Cr02)

so

onsen

mrrmemermrnserennend

ond

(tape

I/

Normal)

(B,C)

2SB621ARS

28J103Y

2SC03311AQS

MA165

MA4120M

SLRS56URC

(Red)

LN846RP

2SD592AQRS

2SA1309AQS

1SR35200

SLRS56YC

(Yellow)

Anode

brain

<—

<>

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Cc

5

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pained?

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.

ate

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>

cao—$g—o

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mn

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DIAGRAM

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——

VR201

Ce

51-3

Mic

Line}

Balance

_

St-1

:

Control

;

’

¥

Line

Mic’

ate

MIC

IN

Rch

—

Wl_Rec/Play_Amp

Rec/H

DIN

JACK

g

(

EGA

only)

29

O

A

L

Q@

@®

OOS

Rch

|

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Ach

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ON

with"H

70uS

SW

O

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PLAYBACK

<>

HEAD

VR301

Bias

Current

Adj.

ERASE

HEAD

°<

—1—

RS-B205 RS-B205

$201-1

Cr02

Oo

r--~-----_

|

fee

see

eas

+———-—~—-—+

|

vR1

|

P.B.Gain

Adj.

|

fo

Ss

S

Q13

=)

Normal/ON

Aa

a

|

Zn

|

ry

|

EA

ioe

Oe

Ui

ee

—~---l,

900

Motor

Control

VR3

Overall

Gain

Adj.

Dolby

NR

Dolby

IN

§801_

98

NR

ODolbyNR

Dolby

OUT

CNR

2)

$901

Rec/ON

%y

nh7

Rec

ind

NOTES:

(‘===

):

Playback

signal

(<=>)

):

Recording

signal

(

—-»-—):

Control

signal

=

arr:

Play/ON

eo-----------

—»——pL__

__

1

(EGA

only)

LINE

OUT

l

|

GB)

|

17¥

9

|

C=

Se

a

HEADPHONES

A

10700

|

=

Amp

HEADPHONES

|

Meter

Drive

|

—=>

_

Lae

|

LED

Meter

Technics RS-B205 Bedienungsanleitung

Beliebte Kassettenspieler Handbücher anderer Marken