Sony MDR-IF5K User manual

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arena

Ss

ONY

;

|

-

3-750-225-21(1)

Cordless

Stereo

Headphones

-MDR-IF5K

Operating

Instructions

Before

operating

the

unit,

please

read

this

manual

thoroughly

and

retain

it

for

future

reference.

Owner’s

Record

|

The

model

and

serial

numbers

are

located

on

the

rear

of

the

transmitter

and

the

inside

of

the

head

band.

Record

these

numbers

in

the

spaces

provided

below.

Refer

to

these

numbers

whenever

you

call

upon

your

Sony

dealer

regarding

this

product.

'

Model

No,

MDRIF5K

Serial

No.

Transmitter

TMR-IFS:

*

:

‘

Headphones

MDR-IF5:

.Features

*

Infrared

transmitting

system

eliminates

the

headphone

cord,

¢

This

headphone

system

can

be

used

with

any

audio/video

equipment

provided

with

a

headphone

jack

or

line

aut

jack.

¢

The

quality

of

the

sound

is

excellent

because

it

is

transmitted

with

high

carrier

frequencies.

*

The

lightweight

rechargeable

battery

built

into

the

headphones

allows

a

compact

design

and

economical

operation.

A

trickle

charging

system

keeps

headphones

ready

to

use

whenever

they

are

rested

on

the

transmitter.

¢

You

can

adjust

the

audio

level

at

your

listening

position

by

using

the

volume

controls

on

the

headphones.

©

1989

by

Sony

Corporation

-

Printed

in

Japan

)

prevent

fire

or

shock

hazard,

do

not

«pose

the

unit

to

rain

or

moisture.

CAUTION

RISK

OF

ELECTAIC

SHOCK

DO

NOT

OPEN

CAUTION:

TO

REDUCE

THE

RISK

OF

ELECTRIC

SHOCK,

D0

NOT

REMOVE

COVER

(OR

BACK.

NO

USER-SERVICEABLE

PARTS

INSIDE.

REFER

SERVICING

TO

QUALIFIED

SERVICE

PERSONNEL.

This

symbol

is

intended

to

alart

the

user

to

the

presence

of

uninsulated

“dangerous

voltage”

within

the

product's

enclosure

that

may

be

of

sufficient

magnitude

to

constitute

a

risk

of

electric

shock

to

persons.

.

This

symbo!

is

intended

to

alert

the

user

to

the

presence

of

importart

operating

and

maintenance

(servicing)

instructions

in

the

literature

accompany-

ing

the

appliance.

>recautions

‘

Operate

the

unit

only

with

the

supplied

AC

adaptor.

*

Unplug

the

AC

adaptor

from

the

wall

outlet

when

it

is

not

to

be

used

for

an

extended

period

of

time.

To

disconnect

the

adaptor,

pull

it

out

by

grasping

the

plug.

Never

pull

it

by

the

cord.

«Do

not

open

the

cabinet.

Refer

servicing

to

qualified

personnel

only.

*

Do

not

install

the

unit

in

a

location

near

heat

sources

such

as

radiators

or

airducts,

or

in

a

place

subject

to

direct

sunfight,

excessive

dust,

mechanical

vibration,

or

shock,

*

Should

any

solid

object

or

liquid

fall

into

the

unit,

unplug

the

unit

and

have

it

checked

by

qualified

personnel

before

operating

it

any

further.

*Do

not

use

alcohol,

benzine

or

thinner

to

clean

the

cabinet.

f

you

have

sny

question

or

problem

conceming

your

unit

that

ts

yt

covered

In

this

manual,

please

consult

the

nearest

Sony

dealer.

Se

sure

to

bring

the

headphones

and

the

transmitter

to

the

Sony

dealer

when

requesting

repalr.

Parts

Identification

ae

5

if

BA

ih

peat

mange.

ante

CT

Contact

pins

Charging

indicator

Quick

charge

button

Infrared

emitters

DC-IN

9V

(DC

external

power

input)

jack

©

Audio

input

cord

Infrared

sensor

Power

switch

Head

band

Contact

holes

Volume

controls

Infrared

sensors

Ear

pads

TV,

VR,

Walkman’,

etc.

©

mini

jack

“Walkman

is

a

trademark

of

Sony

Corporation

onnection

to

an

earphone

(monaural

mini)

jack

se

the

optional

PC-236S

plug

adaptor.

End

WE

ie

BE

OR

Been

ee

Bore

en

ning

the

‘Transmitter

_

Sores

arens

=

wn

aagd

Equipment

-_

-

Cénriecting

the

Transmitter

to

the

LINE

our

“of

REC

OUT

Jack

to

LINE

out

or

REC OUT

jack

Da

Le

8

OR

a:

Reyne

ae

epromen

taro

Hee

Dies

ee

oe

Wall

PereeETeSSCITICEPieleayyy

:

‘

‘0

be

fetete

quay!

vA

APT

wie

4

Pee

eths

Gtlet

ii

AC

power

adaptor

;

seam

-

toa

wall

outlet

he

diagram

below

illustrates

the

approximate

effective

range

of

-

19

infrared

rays

emitted

from

the

transmitter.

Position

the

transmit-

27

90

that

your

listening

area

is

within

the

effective

range.

The

infrared

rays

will

not

penetrate

walls

or

opaque

glass,

therefore

the

head-

phones

must

be

used

in

“in

sight”

area

of

the

Top

view

ah

BN

Tos

transmitter.

K

approx,

7m

(23ft)

y

Side

view

Caution

;

Sony

disclaims

any

tesponsibility

for

injury

to

120°

persons

or

other

accidents

caused

by

not

fitting

the

transmitter

properly

or

when

the

place

af

the

installation

is

not

suitable.

ya

Bore

two

holes

into

the

wail

to

mount

the

trans-

mitter.

The

holes

should

be

about

50mm

(2

inches)

apart

as

shown

in

the

2

Screw

in

the

supplied

screws

until

they

about

4-S5mm

(3H6

inches)

Fit

the

mounting

holes

of

the

transmitter

over

the

screws

and

lowering

the

transmitter

a

little

so

that

-

the

screws

are

lodge

in

the

i

‘mounting

holes.

After

positioning

the

trans-

mitter,

adjust

its

angle

to

obtain

optimum

sound

quality.

(Position

the

transmitter

head

upright

when

charging.)

The

headphones

are

powered

by

their

built-in

rechargeable

battery.

When

you

use

the

headphones

for

the

first

time

or

the

battery

is

completely

exhausted,

proceed

to

charge

the

battery

quickly

(quick

charge)

in

the

following

way:

Connect

the

AC

power

adaptor

to

the

transmitter.

Rest

the

headphones

on

the

transmitter

so

that

the

contact

pins

fit

into

the

contact

holes

on

the

headphones.

The

charging

Set

the

power

switch

on

the

heediniones

to

aor.

pee

eeieey,

OFFICHG.

Caution

Do

not

repeat

the

quick

charge

more

than

two

times

in

succes-

sion,

or

the

battery

may

be

impaired.

Note

«

Whenever

the

headphones

are

rested

on

the

transmitter,

the

battery

is

charged

continuously

and

the

charging

indicator

glows

green

faintly

to

indicate

trickte

charging.

*

Since

little

electric

current

is

used

for

trickle

charging,

there

is

no

need

to

worry

about

overcharging.

it

takes

about

50

hours

to

fully

charge

the

battery

by

the

trickle

charging.

Press

the

quick

charge

button

on

the

rear

of

the

transmitter.

The

charging

indicator

turns

red

and

retums

to

green

after

about

3

hours.

Now,

you

can use

head-

phones

for

about

3

hours.

1

you

want

to

fully

charge

the

battery

to

use

the

headphones

for

about

6

hours,

repeat

the

quick

charge.

Turn

on

the

audioNvideo

equipment

connected

to

the

transmitter.

Turn

on

the

power

switch

of

the

head-

phones

and

pul

on

the

headphones.

Adjust

the

head

band,

if

necessary.

Adjust

the

volume

controls

so

that

the

audio

level

of

both

channels

gets

equal.

When

the

audio

signal

is

input,

the

transmitter

turns

on

auto-

matically

and

the

infrared

emttters

glow.

‘if

the

transmitter

is

connected

to

the

headphone

jack,

set

the

volunie

control

of

the

equipment

to

the

middie

position.

When

the

no

signal

ls

supplied

for

more

than

about

3

minutes

The

transmitter

is

tumed

oft

automalicalty.

When

the

audio

signal

is

interrupted

or

extremely

low

sound

continues

for

more

than

about

3

minutes

The

transmitter

may

be

turned

off.

When

the

transmitter

is

connected

to

the

headphone

jack,

Increase

the

volume

of

the

connected

equipment

and

fower

the

volume

ot

the

headphones.

After

using

the

headphones

Set the

power

switch

to

OFFICHG

and

rest

the

headphones

on

the

transmitter.

Note

*

Be

sure

to

remain

in

the

effective

range

of

the

infrared

rays

while

listen-

Ing

(see

diagram

above).

©

Do

not

cover

the

infrared

sensors

with

your

hands

or

hair.

«Do

not

use

headphones

under

the

direct

sunlight,

Miro

le)(ccoarereliine

meliie(e

Check

the

connection

of

the

equipment

or

AG

power

adaptor.

Check

that

the

audio

equipment

is

tumed

on

If

the

transmitter

is

connected

to

the

head-

phone

jack,

turn

up

the

volume

of

the

con-

nected

equipment.

No

sound

Transmitter

is

not

tumed

on.

aoeinemes

ema

th

AO

Mer

sane;

Headphones’

volume

is

completel

turned

down.

Adjust

the

volume

to

appropriate

level.

Charge

the

battery.

If

the

transmitter

j

is

connected

to

the

head-

phone

jack,

tum

down

the

volume

of

the

connected

equipment.

—

_Charge

the

battery.

“Check

if

there’s

any

object

between

trans-

mitter

and

headphones.

Input

level

of

the

audio

signal

is

too

high.

-

.

Headphones’

battery

is

weak.

Loud

back-

ground

noise

Poor

reception

of

infrared

rays.

Check

if

infrared

sensors

SOrs

are

covered

with

your

hands

or

hair.

Change

the

position

or

angle

of

the

trans-

|

_mitter

(See

diagram

on

the

other

side).

|

Specifications

|

General

Headphones

MDR-IF5

Infrared

wavelength:

850nm

Power

source:

Built-in

rechargeable

battery

Modulation:

Frequency

modulation

Weight:

98g

(35

02.)

Carrier

frequency:

Right

28MHz

Left

23MHz

Supplied

accessories

Effective

range:

up

to

7m

(23

ft)

AC

power

adaptor

(1)

Frequency

response:

18

—

22,000Hz

Connecting

cord

(stereo

mini

jack

—

stereo

phono

Distortion:

Less

than

1%

at

1

kHz

plugs)

(1)

Plug

adaptor

(stereo

mini

jack

—

stereo

phone

Transmitter

TMR-IF5

plug}

(1)

Power

source:

DC

9V

jack

accepts:

Screws

(M3.1

x

20mm)

(2)

Sony

AC-912

AC

power

———Ss«Daessign

and

pecifications

subject

to

change

adaptor

(supplied)

without

notice.

Dimensions:

88

x

220

x

83mm

(Bt

x

8%

x

3%

In),

(whid)

Weight

==

250g

(88

oz)

.