Rotel RT-990BX Manuale utente

Indice

Manuali Sintonizzatore popolari di altre marche

Tunersys

Tunersys WS16 1 Manuale utente

Arcam

Arcam DT91 Manuale utente

Magnum

Magnum MD 102T Manuale utente

HDHomeRun

HDHomeRun 20121008 Manuale utente

Crestron

Crestron C2N-TXM Manuale utente

Eico

Eico HFT-92 Manuale utente

MFJ

MFJ MFJ-928 Manuale utente

NAD

NAD C 445 Manuale utente

Sony

Sony ST-SA5ES Manuale utente

Sirius Satellite Radio

Sirius Satellite Radio SC-FM1 Manuale utente

Antique Automobile Radio

Antique Automobile Radio 283501B Manuale utente

Monacor

Monacor PA-1200R Manuale utente

Technics

Technics ST-X301L Manuale utente

Manhattan

Manhattan 176156 Manuale utente

Marantz

Marantz ST-15S1 Manuale utente

Korg

Korg HA-40 Manuale utente

Harman Kardon

Harman Kardon TU915 Manuale utente

Teac

Teac T-1D Manuale utente

RT-990BX

STEREO

FM

TUNER

OWNER’S

MANUAL

WARNING:

TO

PREVENT

FIRE

OR

SHOCK

HAZARD.

DO

NOT

EXPOSE

THIS

APPLIANCE

TO

RAIN

OR

MOISTURE.

Wilte

your

SERIAL

NUMBER

here.

The

number

Is

located

near

the

name

olate

on

the

rear

oanel

SAFETY

INSTRUCTIONS

1.

Read

Instructions

—

All

the

safety

and

operating

Instructions

should

be

read

before

the

appliance

is

operated.

2.

Retain

Instructions

—

The

safety

and

operating

instructions

should

be

retained

for

future

reference.

3.

Heed

Wamirrgs

—

All

warnings

on

the

appliance

and

in

the

operating

instructions

should

be

adhered

to.

4.

Follow

instructions

—

All

operating

and

use

instructions

should

be

followed.

5.

Water

and

Moisture

—

The

appliance

should

not

be

used

near

water

—

for

example,

near

a

bathtub,

washbowl,

kitchen

sink.

laundry

tub.

in

a

wet

basement,

or

near

a

swimming

pool,

and

the

like.

6.

Carts

and

Stands

—

The

appliance

PORTABLE

CART

should

be

used

only

with

a

cart

or

stand

that

WARNING

is

recommended

by

the

manufacturer.

6A.

An

appliance

and

cart

combination

should

be

moved

with

care.

Quick

stops,

excessive

force,

and

uneven

surfaces

may

cause

the

appliance

and

cart

combination

to

overturn.

7.

Wall

or

Ceiling

Mounting

—

The

appliance

should

be

mounted

to

a

wall

or

ceiling

only

as

recommended

by

the

manufacturer.

8.

Ventilation

—

The

appliance

should

be

situated

so

that

its

location

or

position

does

not

interfere

with

its

proper

ventilation.

For

example,

the

appliance

should

not

be

situated

on

a

bed.

sofa^

rug.

or

similar

surface

that

may

block

the

ventilation

openings;

or

placed

in

a

built-in

installation

such

as

a

bookcase

or

cabinet

that

may

impede

the

flow

of

air

through

the

ventilation

openings.

9.

Heat

—

The

appliance

should

be

situated

away

from

heat

sources

such

as

radiators,

heat

registers,

stoves,

or

other

appliances

(including

amplifiers)

that

produce

heat.

10.

Power

Sources

—

The

appliance

should

be

connected

to

a

power

supply

only

of

the

type

described

in

the

operating

instructions

or

as

marked

on

the

appliance.

11.

Grounding

or

Polarization—The

precautions

that

should

be

taken

so

that

the

grounding

or

polarization

means

of

an

appliance

is

not

defeated.

12.

Power-Cord

Protection

—

Power-supply

cords

should

be

routed

so

that

they

are

not

likely

to

be

walked

on

or

pinched

by

items

placed

upon

or

against

them,

paying

particular

attention

to

cads

at

plugs,

convenience

receptacles,

and

the

point

where

they

exit

from

the

appliance.

13.

Cleaning—The

appliance

should

bo

cleaned

only

as

recommended

by

the

manufacturer.

14.

Nonuse

Periods

—

The

power

cord

of

the

appliance

should

be

unplugged

from

the

outlet

when

left

unused

for

a

long

period

of

time.

15.

Object

and

Liquid

Entry

—

Care

should

be

taken

so

that

objects

do

not

fall

and

liquids

are

not

spilled

into

the

enclosure

through

openings.

16.

Damage

Requiring

Service

—

The

appliance

should

be

serviced

by

qualified

factory

authorized

service

personnel

when:

A.

The

power-

supply

cord

w

the

plug

has

been

damaged;

or

6.

Objects

have

fallen,

or

liquid

has

been

spilled

into

the

appliance;

or

C.

The

appliance

has

been

exposed

to

rain;

or

D.

The

appliance

does

not

appear

to

operate

normally

or

exhibits

a

marked

change

in

performance;

or

£.

The

appliance

has

been

dropped,

or

the

enclosure

damaged.

17.

Servicing

—

The

user

should

not

attempt

to

service

the

appliance

beyond

that

described

in

the

operating

instructions.

All

other

servicing

should

be

referred

to

qualified

faaory

authorized

service

personnel.

WARNING:

To

reduce

the

risk

of,fire

or

electric

shock,

do

not

expose

this

appliance

to

rain

or

moisture

RISK

OF

ELECTRIC

SHOCK

DO

NOT

OPEN

CAUTION:

TO

REDUCE

THE

RISK

OF

ELECTRIC

SHOCK.

00

NOT

REMOVE

COVER

(OR

BACK).

NO

USER-

SERVICEABLE

PARTS

INSIDE.

REFER

SERVICING

TO

QUALIFIED

SERVICE

PERSONNEL

e

Explanation

of

Graphical

Symbols

The

lightning

flash

with

arrowhead

symbol,

within

an

equilateral

triangle,

is

intended

to

alert

the

user

to

the

presence

of

uninsulated

"dangerous

voltage"

svithin

the

product’s

enclosure

that

may

be

of

sufficient

magnitude

to

constitute

a

risk

of

electric

shock

to

persons.

The

exclamation

point

within

an

equilateral

triangle

is

intended

to

alert

the

user

to

the

presence

of

Important

operating

and

maintenance

(servicing)

instructions

In

the

literature

accompanying

the

appliance.

Power

Lines—An

ouldoa

antenna

should

be

located

away

from

pow¬

er

lines.

Outdoor

Antenna

Grounding

—

If

an

outside

antenna

is

connect¬

ed

to

the

receiver,

be

sure

the

antenna

system

is

grounded

so

as

to

provide

some

protection

against

voltage

surges

and

built

up

static

charges.

Section

810of

the

National

Electrical

Code.

ANSl/NFPA

No.

70—1984.

provides

information

with

respect

to

proper

grounding

of

the

mast

and

supporting

structure,

grounding

of

the

lead-in

wire

to

an

antenna

discharge

unit,

size

of

grounding

conductors,

location

of

antenna-discharge

unit,

connection

to

grounding

electrodes,

and

re¬

quirements

from

the

grounding

electrode.

See

Figure.

a-

Use

No.

10

AWG

(5.3

mm')

copper.

No.

8

AWG

(8.4

mm')aluminum.

Na

17

AWG

(1.0mm')copper-ciad

steel

a

bronze

wire,

of

larger,

as

a

ground

wire.

b-

Secure

antenna

lead-in

and

ground

wires

to

house

with

stand-off

insulators

spaced

from

4—6

feet

(1.22

—

133

m)

apart,

c-

Mount

antenna

discharge

unit

as

close

as

possible

to

where

lead-

in

enters

house.

d-

Use

jumper

vdre

not

smaller

than

No.

6

AWG

(133

mm')

copper,

or

the

equivalent,

when

a

separate

antenna-grounding

electrode

Is

used.

EXAMPLE

OF

ANTENNA

GROUNDING

AS

PER

NATIONAL

ELEC¬

TRICAL

CODE

INSTRUCTIONS

POWER

UNES

onouNO

""^SERWCE

^

OAMPS

-

,

ENTRANCE

CONDUCTORS

y

-

-

SERVICE

ENTRANCE

EQUIPMENT'

°'^no

""OfviRe.:

STANOOPP

INSULATORS*

ANTENNA

'

LEAO-IN

WIRE

ANTENNA

DISCHARGE

UNIT

TO

EXTERNAL

ANTENNA

POWER

SERVICE

QROUNOINO

/'‘''^TUTLA

TERMINALS

OF

PROOOCT

ELECTHOOe

SYSTEM

/

^

pT"'

'

(JrounO

WIRE*

*

(•.g.MitnwinMilwmrpIp*)

/

L

onoUND

CLAMPS

BONDING

JUMPER*

32898

OPTIONAL

ANTENNA

GROUNOINO

ELECTBOOE

DRIVEN

8

FEET

(Z.A4

m)

INTO

THE

EARTH

IF

REQUIRED

BY

LOCAL

COOES.

SEE

NEC

FOR

U.S.A.

ONLY

section

9ie-2i

(i)

INTRODUCTION

A

WORD

FROM

ROTEL

We

at

Rote!

take

this

opportunity

to

thank

you

for

choosing

our

RT-990BX

Tuner.

Our

commitment

and

dedication

to

the

design

and

manufacturing

of

high

fideiity

products

for

more

than

thirty

years

has

guided

our

creation

of

equipment

vwth

the

highest

level

in

sound

reproduction.

We

are

confident

that

you

will

enjoy

this

Rotei

tuner,

now

and

for

many

years

to

come.

Please

read

this

instruction

manuai

thoroughly

before

you

start

using

your

tuner

and

keep

it

in

a

safe

place

for

future

reference.

Please

keep

the

box

in

case

the

unit

should

need

service

or

if

you

move.

Thank

you

for

purchasing

the

RT-990BX

tuner.

INTRODUCING

THE

RT-990BX

TUNER

The

Rotei

RT-990BX

Is

a

FM

only

tuner

designed

for

audiophiles

who

require

few

functions,

but

insist

on

the

purest

sound.

The

circuitry

employs

a

highly

sophisticated

grounding

technique

to

achieve

a

very

low

noise

floor

and

improved

selectivity.

The

entire

tuner

circuitry

is

built

on

a

main

board

to

ensure

common

grounding

between

all

sections,

except

the

power

supply

and

front

panel

control

sections,

which

are

placed

on

separate

boards

to

prevent

hum

and

noise

interference.

All

components

are

specially

selected

for

their

sound

performance,

longevity

and

close

tolerances,

and

are

dimensioned

to

withstand

wide

temperature

variations

without

deviation.

Custom-made

components,

such

as

the

transformer

and

stereo

decoder,

provide

optimum

performance.

The

entire

high

frequency

tuner

section

is

shielded

in

a

copper

enclosure

to

eliminate

any

possible

interference

with

other

circuits.

The

audio

outputs

are

buffered

by

high

speed

operational

amplifiers,

providing

a

low-

impedance

high-cument

output,

capable

of

driving

any

possible

combination

of

interconnects

and

amplifiers.

The

power

switch

incoiporates

a

standby

function,

similar

to

the

‘ofT

state

of

conventional

equipment,

but

it

ensures

that

the

tuner's

internal

circuitry

remains

at

a

constant

operating

temperature.

This

provides

the

best

possible

sound

at

any

time

without

the

need

to

wait

until

the

unit

is

warmed-up

after

turning

the

power

on.

Automatic

tuning

is

incorporated

to

ease

selection

of

broadcast

stations,

and

sixteen

presets

are

provided

to

store

your

preferred

stations

for

effortless

recall.

Other

features

include:

automatic

muting

of

weak

stations,

a

mono/stereo

selector,

an

RF

attenuator,

a

wide

bandwidth

selector,

and

a

comprehensive

display

showing

the

preset

number,

receiving

frequency

and

signal

strength.

Display

and

control

functions

are

minimized

to

prevent

any

adverse

effects

on

the

received

signal.

A

remote

control

is

induded

providing

control

of

all

basic

functions

as

well

as

controlling

the

basic

functions

of

our

RC-990BX

control

amplifier.

UNPACKING

AND

INSTALLING

CONTENTS

OF

PACKAGING

BOX

•

RT-9908X

tuner

•

RR-909

remote

control

unit

and

batteries

•

Stereo

interconnecting

cable

and

indoor-antenna

wire

•

300

ohm

to

75

ohm

adapter

(North

America

only)

•

Instruction

manual

If

any

of

these

Items

is

missing,

please

contact

your

dealer

immediately.

UNPACKING

&

LOCATION

Carefully

unpack

your

tuner.

We

advise

you

to

keep

the

packaging

material

for

future

use

in

case

you

move

or

need

to

return

the

unit

for

servidng.

Please

ensure

that

you

place

the

unit

on

a

Oat

surface

where

it

will

be

free

from

excessive

humidity,

vibration,

high

temperatures

and

direct

sunlight.

INTERFERENCE

Certain

equipment,

such

as

computers,

may

cause

reception

interference

to

your

tuner.

One

or

a

combination

of

the

following

measures

may

be

required

to

eliminate

this

interference:

•

Reonent

or

relocate

the

indoor-antenna,

or

use

an

outdoor-antenna

instead.

•

Increase

the

distance

between

the

tuner

and

the

interfering

apparatus.

•

Connect

the

tuner

into

a

mains

outlet

on

a

drcuit

different

to

that

which

the

interfering

apparatus

is

connected.

Contact

vour

dealer

for

further

advice.

ELECTRICAL

REQUIREMENTS

Your

equipment

has

been

designed

to

be

powered

by

your

local

AC

(mains)

supply.

Before

connecting

it

to

the

AC

outlet,

check

the

voltage

rating

at

the

name

plate

found

on

the

rear

panel.

Never

plug

the

unit

into

an

outlet

of

voltage

different

to

that

specified.

The

wrong

voltage

can

cause

a

serious

fire

hazard.

Consult

your

dealer

if

in

doubt.

EXCLUSIVE

NOTE

FOR

U.K.-\f

your

unit

comes

with

a

2-core

mains

lead

without

a

plug,

neither

core

is

to

be

connected

to

the

earth

terminal

of

a

three

pin

plug,

marke

certain

they

are

connect^

according

to

the

following

instrution,

to

the

proper

terminals.

Check

that

the

terminals

are

screwed

down

firmly

and

no

loose

strands

of

wire

are

present.

IMPORTANT:

The

wires

in

the

mains

lead

are

coloured

in

accordance

with

the

following

code:

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

BLUE

must

be

connected

to

the

terminal

which

is

marked

with

the

letter

N

or

coloured

BLUE

or

BLACK.

The

wire

which

is

coloured

BROWN

must

be

connected

to

the

terminal

which

is

marked

with

the

letter

L

or

coloured

BROWN

or

RED.

THE

CABINET

There

are

no

user-serviceable

parts

inside

the

unit.

Do

not

attempt

to

open

the

cabinet,

as

this

could

damage

your

unit

and

void

your

warranty.

If

the

tuner

is

dropped,

damaged

or

does

not

seem

to

function

properly,

disconnect

the

power

cord

immediately

and

consult

your

dealer.

If

your

unit

becomes

dirty,

wipe

it

gently

with

a

soft,

dry

cloth.

Never

use

solvents

of

any

kind.

REMOTE

CONTROL

UNIT

Remove

the

battery

cover

-

on

the

back

of

the

remote

control

unit

and

insert

two

batteries

in

the

correct

position,

as

indicated.

Close

the

cover,

to

secure

the

batteries

properly.

To

ensure

the

proper

functioning

and

safe-keeping

of

the

remote

control

unit:

•

Keep

remote

control

unit

away

from

extremely

hot

or

humid

places;

•

Avoid

dropping

and

spilling

liquids

on

or

into

the

remote

control

unit;

•

Avoid

exposing

the

remote

sensor

to

direct

sunlight

or

lighting

apparatus.

•

Remove

the

batteries

when

the

remote

control

unit

will

not

be

used

for

a

long

time,

to

avoid

leakage

of

the

batteries

that

could

damage

your

remote

control

unit.

NOTE:

The

average

lifetime

of

the

batteries

is

approximately

one

year,

but

may

vary

depending

on

the

intensity

of

usage.

When

the

tuner

no

longer

responds

to

remote

commands,

the

batteries

should

be

replaced.

MAKING

THE

CONNECTIONS

__

See

Illustration

-

Rear

Panel,

to

visualize

where

the

connections

should

be

made

1.

CONNECTING

TO

AN

INTEGRATED

AMPLIFIER

OR

PREAMPLIFIER

tuner

and

amplifier

are

switched

off

before

you

connect

them.

Connect

the

OUTPUT

jacks

on

the

WakP

INPUT

Jacks

of

your

amplifier,

using

the

interconnect

cord

supplied

with

your

tuner,

amniifiar

(RED)

and

the

left

(WHIT^

jacks

are

correctly

connected

to

the

corresponding

inputs

on

your

beiJa

nc^

hv

Conner

the

tuner

to

the

AUX

input

Jacks

on

your

amplifier

if

the

tuner

input

Is

already

being

used

by

another

tuner,

or

if

there

is

no

tuner

input

available.

2

2.

CONNECTING

THE

ANTENNA

Indoor

FM

Antenna

-

the

supplied

indoor

antenna

is

sufficient

for

the

reception

of

broadcast

stations

in

good

reception

areas.

To

install

H,

connect

the

antenna

wire

to

(the

adapter

that

converts

300

ohm

to

75

ohm,

and

push

this

on

•

N.

America

only)

the

antenna

INPUT

terminal

on

the

back

of

the

tuner.

Then

stretch

the

wire

out

and

secure

it

along

the

wail.

Repositioning

the

antenna

may

improve

reception

quality.

•

Applicable

for

U.S.A.,Canada

version

*

Applicable

for

European

version

FM

7S

Q

Outdoor

FM

Antenna

-

In

areas

of

average

to

weak

reception

conditions,

an

outdoor-antenna,

mounted

on

the

rooftop,

may

be

required

for

best

results.

To

install

it,

connect

the

antenna

plug

to

the

antqnna

INPUT

tenminal

on

the

back

of

the

tuner.

While

we

feel

that

an

indoor

antenna

will

give

adequate

reception,

only

an

outdoor

antenna

will

truly

let

the

tuner

perform

to

its

potential.

3.

CONNECTING

THE

POWER

CORD

Always

handle

the

power

cord

with

care

and

never

pull

the

plug

out

by

tugging

the

cord.

Connect

the

power

cord

to

the

mains

outlet.

The

tuner

will

automatically

go

into

STANDBY

mode

when

connected

to

a

mains

outlet.

NOTE:

Verify

that

all

connections

are

properly

made

and

that

the

tuner

and

amplifier

have

been

plugged

in.

Hum

and

noise

may

be

caused

either

by

improper

connection

between

tuner,

amplifier

and/

or

speakers,

or

as

a

result

of

different

grounding

or

location

of

the

components.

Check

that

the

audio

interconnect

cables

are

completely

inserted

into

their

sockets

on

both

tuner

and

amplifier.

LOCATiON

AND

OPERATION

OF

CONTROLS

■

Front

Panel

_

See

Illustration

-

Front

Panel,

to

visualize

the

location

of

the

&ont

panel

controls.

1.

S

TANDBY

BUTTON/INDICATOR

Press

this

button

to

turn

the

tuner

on,

and

press

it

again

back

to

Standby

mode,

the

Standby

indicator

will

glow

constantly.

The

tuner

is

always

at

STANDBY

mode

while

AC

power

is

connected.

When

the

tuner

is

switched

from

standby

to

on,

all

the

buttons

and

functions

that

had

been

activated

when

the

tuner

was

sv^ched

to

standby,

will

remain

activated.

The

Standby

button

is

also

available

from

the

remote

control

unit.

2.

REMOTE

CONTROL

SENSOR

Receives

the

control

commands

from

the

remote

control

unit.

The

remote

control

unit

should

be

aimed

toward

the

sensor

-

in

as

straight

a

line

as

possible

-

in

order

for

the

remote

functions

to

be

acknowledged.

3.

PRESET

DISPLAY

Indicates

the

selected

preset.

Until

the

presets

are

programmed

however,

the

preset

numbers

do

not

appear

on

the

display.

The

programming

of

the

presets

will

thus

enable

you

to

store

the

desired

frequencies

and

to

see

the

presets

on

the

display.

There

are

16

different

presets

available

on

the

remote

control

unit.

4.

FREQUENCY

DISPLAY

Indicates

the

received

frequency;

shows

the

word

STEREO

when

a

stereo

broadcast

station

is

received;

and

shows

the

word

MEMO

during

programming

of

presets.

S

SIGNAL

DISPLAY

Indicates

the

signal

strength

of

the

received

broadcast

station.

The

strongest

reception

is

indicated

by

lighting

all

five

LEDs.

The

weakest

reception

shows

no

LED

glowing.

R

MONO

BUTTON/INDICATOR

SwHches

from

stereo

to

mono

reception.

This

function

is

useful

for

reducing

background

noise

of

very

weak

stereo

broadcast

stations.

The

indicator

above

the

button

lights

up

when

the

function

is

activated.

7

MUTE

OFF

BUTTON/INDICATOR

Switches

the

automatic

mute

function

off,

enabling

the

reception

of

weak

stations.

The

indicator

above

the

button

lights

up

when

the

function

is

activated.

When

the

muting

is

on,

weak

stations

cannot

be

heard.

When

you

deactivate

the

muting

(i

e.

MUTE

OFF

indicator

lights

up),

weak

stations

may

be

received

in

mono.

8.

RF

ATTENUATE

BUTTON/INDICATOR

Reduces

sound

distortion

when

receiving

very

strong

broadcast

stations,

by

attenuating

the

incoming

antenna

signal.

This

function

is

also

useful

for

eliminating

interference

that

may

occur

when

a

broadcast

station

has

a

moderate

signal

levei

and

is

adjacent

to

a

station

that

has

a

very

strong

signal

level.

The

indicator

above

the

button

lights

up

when

the

function

is

activated.

9.

WIDE

BAND

BUTTON/INDICATOR

Enables

reception

of

broadcast

stations

at

their

full

broadcast

bandwidth.

By

deactivating

the

wide

function,

interference

is

eliminated

from

broadcast

stations

that

are

too

close

to

each

other,

by

switching

to

a

narrower

audio

bandvindth.

The

indicator

above

the

button

lights

up

when

the

function

is

activated.

10.

AUTO

TUNING

BUTTON/INDICATOR

Enables

automatic

tuning

of

broadcast

stations,

in

conjunction

with

the

<

TUNING

>

buttons.

Broadcast

stations

vrith

weak

to

moderate

signal

levels

are

automatically

skipped

during

automatic

tuning.

However,

when

the

MUTE

OFF

function

is

activated

(indicator

is

lit

up),

broadcast

stations

with

a

moderate

signal

level

will

also

be

automatically

tuned

in.

The

indicator

above

the

button

lights

up

when

the

function

is

activated.

This

function

is

also

available

from

the

remote

control

unit.

11

■

<3

TUNING

>

BUTTONS

Press

the

<3

TUNING

button

to

decrease

the

tuned

frequency.

Press

the

TUNING

>

button

to

increase

the

tuned

frequency.

The

TUNING

buttons

are

also

available

from

the

remote

control

unit.

When

auto

tuning

is

not

activated,

manual

tuning

is

enabled.

Pressing

the

TUNING

buttons

briefly

will

increase

or

decrease

the

frequency

in

a

single

step.

Pressing

the

TUNING

buttons

continuously

wiil

increase

or

deaease

the

frequency

until

the

button

is

released,

or

until

the

band

limit

is

reached.

When

auto

tuning

is

activated,

tuning

into

a

broadcast

station

is

done

automatically.

The

tuner

searches

continuously

until

a

broadcast

station

Is

received.

When

the

end

of

the

band

is

reached,

tuning

automatically

continues

in

the

opposHe

direction.

To

search

for

the

next

station,

press

one

of

the

TUNING

buttons

again.

LOCATION

AND

OPERATION

OF

CONTROLS

-

Remote

Control

Unit

_

See

Illustration

-

Remote

Control

Unit,

to

visualize

the

location

of

the

remote

controls.

The

remote

control

unit

duplicates

the

standby,

auto

tuning

and

tuning

buttons,

from

the

front

panel

section.

Please

refer

to

the

corresponding

front

panel

for

information

on

their

use.

This

remote

control

unit

operates

the

RT-990BX

tuner,

as

well

as

the

power,

volume

and

muting

functions

of

the

RC-990BX

control

amplifier,

when

used

together.