Denon TU-280 Operating Instructions - Page 7

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DESIGNATIONS

AND

FUNCTIONS

OF

PANEL

CONTROLS

•

POWER

ON/STANDBY

(Power

ON

/STANDBY

Switch)

The

unit

works

2-3

seconds

after

this

switch

is

turned

on.

Whenever

the

power

switch

is

in

the

STANDBY

state,

the

apparatus

is

still

connected

on

AC

line

voltage.

Please

be

sure

to

unplug

the

cord

when

you

leave

home

for,

say,

a

vacation.

PRESET

CHANNEL

1-30

(Preset

Channel

Buttons)

These

buttons

are

used

for

storing

broadcast

frequencies.

When

the

preset

channel

buttons

are

in

operation,

an

indicator

0

goes

on.

When

radio

stations

are

memorized

with

these

buttons,

a

desired

station

can

be

easily

tuned

by

pressing

these

buttons.

SHIFT

(Shift

Button)

This

switch

is

used

to

select

the

preset

channels

from

either

1-10

or

11-20

or

21-30.

When

the

shift

button

is

pressed,

either

0

or

Ej

lights

up

on

the

SHIFT

indicator.

Note:

After

preset

tuning,

another

channel

cannot

be

selected

by

pressing

the

shift

Button

only.

Press

the

preset

Button

again

to

set

the

signal

that

you

wish

to

receive.

:

1

—10

a

11-20

IDE:

21-30

TUNING

(Tuning

Buttons)

Used

to

change

the

received

frequency

to

a

highter

frequency

(UP)

or

a

lower

frequency

(DOWN).

BAND

(Band

Button)

Selects

between

FM

or

AM

(MW).

AUTO

MUTE/MANU

(Tuning

Mode

Button)

This

switches

between

auto

and

manual

tuning.

Auto

tuning:

When

the

UP

Button

is

pressed,

the

radio

is

tuned

automatically

to

a

higher

frequency.

Press

the

DOWN

Button

to

tune

to

a

lower

frequency.

Use

this

position

to

eliminate

noise

when

no

signals

or

weak

signals

are

being

received.

Manual

tuning:

In

this

position,

the

radio

can

be

tuned

manually.

Reception

is

automatically

monaural

when

in

the

manual

mode.

MEMORY

(Memory

Button)

This

button

is

used

to

enable

storage

of

the

frequency

of

a

broadcasting

station

in

memory

with

the

Preset

channel

button

0.

When

MEMORY

is

pressed,

indicator

0

blinks

for

approximately

5

seconds.

If

the

PRESET

button

is

pressed

during

this

time

interval,

the

frequency

that

is

currently

displayed

is

stored

in

memory.

OPERATION

INSTRUCTIONS

PREPARATION

CHECKING

CONNECTIONS

•

Check

all

the

connections

by

referring

to

connection

diagram

(Fig.

1).

(Refer

to

Page

5.)

•

Check

that

the

right

(R)

and

left

(L)

channels

of

the

speakers

are

connected

to

the

corresponding

right

(R)

and

left

(L)

plugs,

and

check

that

polarities

(positive

and

negative)

are

correctly

matched.

•

Check

that

the

right

(R)

and

left

(L)

pins

are

correctly

inserted

to

the

corresponding

jacks.

•

Check

that

all

the

cords

are

firmly

connected.

*

Turn

on

the

power

with

the

POWER

switch

after

checking

all

the

connections.

0

(Refer

to

Page

4.)

Note:

If

the

MEMO

indicator

0

is

not

blinking,

pressing

the

PRESET

button

will

not

store

the

frequency

in

memory.

MEMO

(Memory

Indicator)

This

indicator

lights

when

the

MEMORY

button

0

is

pressed.

CHANNEL

(Channel

Indicator)

This

displays

the

number

of

the

channel

at

which

the

station

is

stored.

DIGITAL

FREQUENCY

INDICATOR

Reception

frequencies

are

indicated

numerically.

The

FM

frequency

unit

is

MHz;

the

AM

frequency

unit

is

kHz.

SIGNAL

(Signal

Indicator)

This

lights

when

a

station

can

be

received.

STEREO/MONO

(Stereo/Mono

Indicator)

"STEREO"

lights

automatically

when

receiving

a

stereo

broadcast.

"MONO"

lights

when

receiving

a

monaural

broadcast

or

no

broadcast

at

all.

TUNING

MODE

(AUTO/MANUAL)

Pressing

MODE

0

causes

"AUTO"

and

"MANUAL"

to

light

up

alternately.

SHIFT

ID

(Shift

Indicator)

The

preset

channel

which

is

selected

with

the

Shift

Button

0

is

displayed

by

the

SHIFT

0

or

O

or

OE.

El

:

1

:

11-20

00:

21-30

REMOTE

SENSOR

(Reniote

Control

Photosensitive

Window)

This

sensor

receives

the

infrared

light

transmitted

from

the

wireless

remote

control

unit.

When

operating

the

wireless

remote

control

unit,

point

it

towards

this

sensor.

The

wireless

remote

control

unit

included

with

the

DENON

PMA-480R,

PMA-680R,

PMA-980R

etc.

can

be

used

to

switch

the

preset

channels

up

or

down.

CHECKING

ANTENNA

1.

Do

not

incorrectly

connect

the

loop

antenna.

If

you

are

not

sure

how

to

connect

the

loop

antenna,

refer

to

Fig.

1.

2.

Use

of

loop

antenna:

Keep

the

loop

antenna

away

from

the

main

body.

If

the

antenna

contacts

a

metal

body,

reception

sensitivity

is

degraded,

thus

resulting

in

unclear

reproduction.

CAUTION:

1.

Whenever

the

power

switch

is

in

the

STANDBY

position,

the

unit

is

still

connected

on

AC

line

voltage.

Please

be

sure

to

unplug

the

cord

when

you

leave

home

for,

say,

a

vacation.

2.

Noise

may

be

generated

if

a

near

-by

television

set

is

on

during

AM

(MW),

FM

broadcasting

reception.

The

tuner

should

be

used

as

far

away

from

a

television

as

possible.

3.

When

power

is

supplied

again

after

disconnecting

the

AC

plug

on

interruption

of

the

power

supply,

this

unit

is

set

automatically

to

the

FM

87.5

MHz,

and

AUTO

MUTE

mode.

Denon TU-280 Operating Instructions - Page 7

Denon TU-280 Manual

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