Rotel Ra-840b User manual

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owners

r

RA-840BX

STEREO

INTEGRATED

AMPLIFIER

ENGLISH.1

DEUTSCH.4

FRANCAIS.7

NEDERLANDS.10

ESPANOL.13

ITALIAN©.16

SVENSKA.19

SUOMI.22

DANSK.25

NORSK.28

Ei

WARNING

TO

PREVENT

FIRE

OR

SHOCK

HAZARD,

DO

NOT

EXPOSE

THIS

APPLIANCE

TO

RAIN

OR

MOISTURE

Write

your

SERIAL

NUMBER

here,

The

number

is

located

near

the

name

plate

on

the

rear

panel.

_

RA-840B

IMPORTANT

In

keeping

with

our

design

philosophy,

the

RA840B

amplifier

incorporates

"STRAIGHT

LINE”

loudspeaker

paths

to

obviate

degradation

of

sound

quality

through

oxidisation.

Accordingly,

when

using

headphones

for

private

listening

it

will

be

necessary

to

disconnect

your

loudspeaker

leads

from

the

amplifier.

For

convenience,

the

MM/MC

switch

is

located

on

the

front

panel.

It

should

be

noted,

however,

that

the

amplifiers

volume

control

should

be

set

at

zero

before

switching

from

MM

to

MC

or

MC

to

MM.

It

is

also

advisable

to

position

the

volume

control

at

zero

before

switching

the

amplifier

on

or

off.

THE

ADDITIONAL

DUBBING

FUNCTION:

Dubbing

(tape

to

tape

copying)

can

be

done

from

TAPE

1

to

TAPE

2.

To

achieve

this

both

TAPE

1

and

TAPE

2

buttons

must

be

depressed.

ENGUSH

STEREO

INTEGRATED

AMPLIFIER

RA

840B

INTRODUCTION

We

at

Rotel

want

to

thank

you

for

purchasing

our

audio

product.

Rotel

audio

products

are

designed

to

use

the

latest

electronic

technology,

and

they

incorpo¬

rate

our

long

experience

as

a

specialist

manufac¬

turer

of

audio

equipment.

We

are

confident

that

you

will

find

satisfaction

in

the

high

quality

sound

and

top

performance,

and

that

you

will

find

pleasure

in

the

functional

beauty

achieved

through

human-engineering

concept.

Before

starting

operation,

please

read

this

instruction

manual

thoroughly

and

acquaint

yourself

with

the

proper

mode

of

using

the

unit

and

all

its

connections.

We

hope

you

will

enjoy

top-notch

performance

for

many

years

to

come.

BEFORE

ENJOYMENT/

POWER

SUPPLY

Follow

the

instructions

below

for

maximum

safety:

1.

Use

a

wall

outlet

for

power

supply

Be

sure

to

connect

the

AC

line

cord

to

a

house¬

hold

wall

outlet.

Be

certain

that

the

outlet

voltage

matches

the

electrical

rating

of

the

unit,

found

on

the

rear

panel

name

plate.

2.

Connecting

and

removing

AC

cord

Be

sure

to

connect

or

disconnect

the

AC

line

cord

only

after

turning

off

the

power

switch

to

prevent

possible

shock

noise

or

damage

to

the

speakers,

3.

Ventilate

the

unit

well

Never

block

any

ventilation

holes

at

the

top

and

bottom

of

the

unit.

Be

sure

also

to

provide

ample

ventilation

space

around

the

unit.

Poor

ventilation

may

result

in

damage

due

to

exces¬

sive

heat.

4.

Do

not

open

the

cabinet

In

order

to

avoid

electric

shock

or

damage

to

the

component,

never

open

the

cabinet.

If

a

foreign

object

falls

inside

the

unit

by

mistake,

turn

the

power

off,

disconnect

the

wall

plug,

and

consult

a

qualified

electrician

or

your

dealer.

5.

Installation

Be

sure

to

place

the

unit

in

a

level

and

flat

place

where

it

is

free

from

humidity,

vibration,

high

temperature

and

not

exposed

to

direct

sunlight.

Be

careful

not

to

place

the

unit

in

a

highly

enclosed

place

such

as

near

a

wall

or

on

a

bookshelf.

A

poor

ventilation

will

cause

unde¬

sirable

effects

to

the

unit.

6.

Moving

the

unit

When

transporting,

remove

the

AC

cord

from

the

wall

outlet

and

all

other

connected

cords

on

the

rear

panel

to

prevent

wire

breakage

and

short

circuits.

7.

If

the

unit

gets

wet

If

the

unit

should

get

wet,

immediately

discon¬

nect

the

AC

cord,

and

consult

your

dealer

or

a

qualified

electrician.

8.

Cleaning

and

maintenance

Do

not

use

chemicals

such

as

benzine

or

thin-

ners

on

the

front

panel.

Always

use

a

soft,

dry

cloth

to

clean

the

unit.

9.

O

wner's

manual

Keep

the

owner's

manual

near

the

unit,

and

record

the

serial

number

(found

on

the

rear

pincl)

on

the

cover.

EXCLUSIVE

NOTE

FOR

U.K.

If

your

unit

comes

with

a

3-core

cable

without

a

plug,

make

certain

live,

neutral

and

earth

leads

are

connected

to

the

proper

terminals.

Check

that

the

terminals

are

screwed

down

firmly

and

no

loose

strands

of

wire

are

present.

IMPORTANT:

The

wires

in

this

mains

lead

are

coloured

in

accordance

with

the

following

code:

GREEN/YELLOW:

EARTH

BLUE

:NEUTRAL

BROWN

:

LIVE

As

the

colours

of

the

wires

in

the

mains

lead

of

this

apparatus

may

not

correspond

with

the

coloured

markings

identifying

the

terminals

in

your

plug

proceed

as

follows.

The

wire

which

is

coloured

GREEN/YELLOW

must

be

connected

to

the

terminal

in

the

plug

which

is

marked

by

the

letter

E

or

by

the

safety

earth

symbol

4r,

or

coloured

GREEN

or

GREEN/YELLOW.

The

wire

which

is

coloured

BLUE

must

be

connected

to

the

terminal

which

is

marked

with

the

letter

N

or

coloured

BLACK.

The

wire

which

is

coloured

BROWN

must

be

connected

to

the

terminal

which

is

marked

with

the

letter

L

or

coloured

RED

CASSETTE

DECK

SPEAKERS

Use

speaker

systems

with

impedance

ratings

of

-16

ohms.

Before

hooking

up

your

speaker

system,

be

sure

to

check

its

impedance,

which

should

be

indicated

either

on

the

back

of

the

speaker,

or

in

the

speaker

instruction

man¬

ual.

HOOKING

UP

SPEAKERS

Connect

the

speaker

leads

of

the

right-hand

speaker

to

terminals

"R",

and

the

speaker

leads

of

the

left-hand

speaker

to

terminals

"L".

Make

sure

that

the

"+"

speaker

lead

is

connected

to

the

termirwl,

and

the

"

lead

to

the

terminal.

Strip

1.0cm

(3/8")

of

the

polyvinyl

chloride

insulation

from

the

end

of

each

speaker

lead.

Twist

the

exposed

strands

tightly,

and

secure

the

end

with

a

touch

of

solder.

The

terminals

are

the

push-insert

type.

Insert

the

end

of

the

lead

into

the

hole

while

pushing

on

the

button.

Then

release

the

button;

the

hole

will

close

and

the

cord

is

firmly

fixed.

SPEAKER

(RIGHT)

SPEAKER

(LEFT)

CONNECTING

COMPONENTS

Connect

all

necessary

audio

components

to

the

rear

panel

of

the

unit,

using

RCA

pin

cords.

See

the

illustration

for

properly

completed

con¬

nections.

When

connecting

RCA

pin

cords,

be

sure

that

L

(left)

and

R

(right)

markings

on

each

component

are

matched

correctly.

Con¬

nect

the

grounding

wire

of

the

turntable

to

the

terminal

marked

GND

on

the

amplifier.

For

turntable

connection,

there

are

two

sets

of

PHONO

input

terminals,

labeled

MC

and

MM

respectively.

Connect

turntable

equipped

with

MC

type

cartridge

to

the

MC

terminals,

and

connect

turntable

with

MM

type

cartridge

to

the

MM

terminals.

1

SWITCHES

AND

CONTROLS

(1)

Power

Button

This

button

turns

on

the

unit.

The

LED

indi¬

cator

above

it

will

glow

when

the

power

is

on.

Press

the

button

a

second

time

to

turn

off

the

power.

(2)

Headphone

Jack

For

private

listening,

plug

your

headphones

into

this

jack.

The

volume

of

the

headphone

sound

can

be

regulated

with

the

volume

cont¬

rol.

(3)

Mono

Button

Pressing

this

button

will

cause

the

unit

to

re¬

produce

any

input

signal

monaurally.

When

the

button

is

released,

the

unit

gives

stereo

re¬

production.

O

^

OPERATION

•

Before

commencir>g

operation,

check

to

see

if

all

connections

are

properly

made.

•

Always

be

sure

to

set

the

volume

control

to

the

minimum

position

before

turning

on

power.

Listening

from

turntable

1.

Set

both

Tape

Monitor

buttons

in

re¬

leased

(OFF)

position.

2.

Depress

PHONO

button

on

the

function

selector

(also

depress

MM/MC

button

to

listen

to

turntable

connected

to

PHONO-MC

termi¬

nals

on

the

rear

panel).

3.

Start

the

play,

then

raise

the

volume

level.

Listening

from

compact

disc

player

or

tuner

1.

Set

Tape

Monitor

buttons

In

released

(OFF)

position.

2.

To

listen

to

a

compact

disc,

depress

C.D.

button

on

the

function

selector;

depress

TUNER

button

to

receive

radio

broadcast.

3.

Play

the

compact

disc

or

tune

in

to

the

dr.>sired

station,

according

to

instructions

given

for

the

equipment.

4.

Raise

the

volume

level.

Playing

back

tape

deck

1.

Depress

either

Tape

Monitor

button,

TAPE

1

or

TAPE

2,

according

to

the

tape

deck

you

wish

to

use.

2.

Start

playback.

3.

Raise

the

volume

level.

Recording

program

source

Play

the

desired

program

source

according

to

the

procedures

mentioned

above.

The

signal

from

the

source

will

be

sent

through

TAPE

MONITOR

OUT

terminals

on

unit's

rear

panel.

(4)

Tape

Monitor

Buttons

Used

to

listen

to

signal

from

the

tape

deck.

Depress

button

labeled

TAPE

1

for

the

deck

connected

to

TAPE

1

terminals,

and

button

labeled

TAPE

2

for

the

deck

connected

to

TAPE

2

terminals.

(5)

Function

Selector

The

function

selector

works

only

when

the

Tape

Monitor

buttons

are

released

to

off.

It

is

used

to

select

program

sources:

Depress

PHO¬

NO

button

(MC

or

MM)

to

reproduce

signal

from

turntable,

C.D.

button

for

signal

from

compact

disc

player,

and

TUNER

button

for

signal

from

tuner.

Depress

MM/MC

button

to

listen

to

turntable

connected

to

PHONO-MC

terminals

on

the

rear

panel.

(6)

V

olume

Control

Used

to

regulate

the

volume

level.

Turn

clock¬

wise

to

increase

the

volume,

and

counterclock¬

wise

to

reduce

it.

This

is

a

dual

concentric

knob

which

permits

either

separate

or

combined

adjustment

of

both

channels.

\h/}n

HA

U4CfJ

VCJLwJMF

I

HS-

H

B

1

1

1

1

m

m

■

□

d

r

Put

the

tape

deck

in

the

record

mode

to

record

the

signal.

During

recording,

operation

of

Volume

control,

and

Mono

button

will

have

no

effect

on

the

signal

being

sent

through

TAPE

MONITOR

OUT

terminals.

HUM

AND

NOISE

In

any

high

fidelity

installation,

hum

may

be

caused

by

the

interconnection

of

a

turntable,

tuner

and

amplifier,

and

speakers

as

the

result

of

wiring,

different

grounding

or

locations

of

compKjnents.

If

hum

is

experienced

with

your

unit,

discon¬

nect

everything

but

the

speakers

from

the

unit.

Plug

in

the

turntable

and

If

hum

or

howling

appears,

move

the

turntable

away

from

the

speakers

as

much

as

possible.

Note

hum

may

also

be

induced

by

defective

cable

connections

or

by

running

the

cables

too

close

to

a

strong

AC

field.

When

your

unit

picks

up

noise

during

the

reception

of

broadcasts,

causes

are

mostly

due

to

external

objects

such

as

fluorescent

lamps

and

house

appliances

using

motor

or

thermo¬

stat,

or

others

that

may

induce

the

noise.

Either

relocating

the

unit

away

from

the

noise

sources

or

using

an

improved

outdoor

antenna

may

readily

solve

the

problem.

In

the

event

you

cannot

find

the

cause,

consult

your

dealer

or

a

qualified

electrician.

PROTECTION

CIRCUIT

To

prevent

accidental

damage

to

the

unit

or

speakers,

a

protection

circuit

is

installed

in

the

unit.

If

no

sound

is

produced,

a

blown

fuse

may

be

the

cause.

Turn

off

the

unit,

disconnect

the

plug

from

the

electrical

outlet,

and

consult

your

dealer

or

qualified

electrician.

VOLTAGE

SELECTION

Not

available

for

U.K.,

Canada

and

Scandinavia

The

unit

is

a

variable

voltage

equipment

that

can

run

on

120V,

220V

or

240V

power

supply.

Your

unit

should

already

be

preset

at

the

proper

voltage

for

use

in

your

area.

However,

if

you

move

to

an

area

where

the

power

supply

voltage

is

different,

consult

your

dealer.

SPECIFICATIONS

Continuous

Power

Output

,40

watts'*

per

channel,

min.

RMS

both

channels

driven

into

8

ohms

from

20

to

20,000

Hz

with

no

more

than

0.03%

total

harmonic

distortion.

DIN

Output.58

watts

per

channel

(1

kHz,

4

ohms,

1%THD)

Music

Power.200

watts

Total

Harmonic

Distortion.No

more

than

0.03%

(continuous

rated

(20

to

20,0(X)

Hz,

from

CD)

power

output)

No

more

than

0.03%

(continuous

1/2

rated

power

output)

No

more

than

0.03%

(1

watt

per

channel

power

output,

8

ohms)

Intermodulation

Distortion

.

.

.

.No

more

than

0.03%

(continuous

(60

Hz

:

7

kHz

*=4:1)

rated

power

output)

No

more

than

0.03%

(continuous

1/2

rated

power

output)

No

more

than

0.03%

(1

watt

per

channel

power

output,

8

ohms)

Output:

Speaker..4*16

ohms

Headphone.4*16

ohms

Damping

Factor.30

(20

to

20,000

Hz.

8

ohms)

Input

Sensitiviry/lmpedance:

PHONO

(MC).300

mV/

5

00

ohm

PHONO

(MM).3.0

mV/20

kohm

CD.220

mV/24

kohm

TUNER.220mV/24kohm

TAPE

MONITOR.220

mV/24

kohm

Ovciload

Level

(T.H.D.

0.01%,

Ik

Hz):

PHONO

(MC).20

mV

PHONO

(MM).140

mV

CD,

TUNER,

TAPE.5V

Frequency

Response:

PHONO.20

to

20,000

Hz,

*0.2

dB

(RIAA

STD)

CD,

TUNER,

TAPE.10

to

40,000

Hz.

+1.0

dB,

-3.0

dB

Signal-tO’Noise

Ratio

(IHF,

A

network):

PHONO

(MC).75

dB

PHONO

(MM).78

dB

CD,

TUNER,

TAPE.95

dB

MISCELLANEOUS

Power

Requirement.120V/60

Hz,

220V/50

Hz,

240V/50

Hz,

or

120,

220,

240V/50-60

Hz

(switchable)

(depending

on

destinations)

Power

Consumption.310

watts

Dimensions

(overall).430

(W)

x

66

(H)

x

319(D)

mm

16-15/16"x2-19/3?"x

Weight

(net).

7

7kg/l6.9

lbs

•

Specifications

and

design

subject

to

possible

modification

without

notice.

•

•

Measured

pursuant

to

the

Federal

Trade

Commission's

Trade

Regulation

Rule

on

Power

Claims

for

Amplifiers

(applicable

to

the

U.S.A.

only).