Sony tmr if 125 r service manual

Page 1

_ MR-IF125R_

SERVICE MANUAL Canadifi 53321

E Model
Australian Model
Tourist Model

TMR-IF125R is the component model block one in MDR-
|F125RK.

COMPONENT MODEL NAME FOR MDR-IF125FIK

Cordless Stereo Headphones MDFI~1F120
Transmitter TMR-IF125R

SPECIFICATIONS
General
Modulation system Frequency modulation
Carrier frequency Right 28 MHz
Left 23 MHz
Frequency response Ill-22.000 Hz

Power source DC IN 9 V jack accepts:
Sony AC-S90l AC Power adaptor (supplied)
for US, Canadian, E92 Model
Sony AC-E9OIS AC Power adaptor (supplied)
for E13 Model
Sony AC-E90HG AC Power adaptor
(supplied) for Australian Model
Sony AC-5195 AC power daptor
(Supplied) for Tourist Model

Audio input Phono jacks/stereo mini jack

Dimensions Approx. 152 x 40 x 72 mm
(6 x l'lz x 2% in.) (w/h/d)

Mass Approx. 88 g (31 oZ )

Design and specifications are subject to change without notice,
' Abbreviation

E13: 220-240 V AC area
E92: IZOV AC area

INFRARED TRANSMITTER
S ONY;

Page 2

This section is extracted from
instruction manual.

-
Setting up the
transmitter

1 Connect the transmitter to audio/video

equipment. Select one of the hookups
below depending on the jack type:

(5) To connect to LINE OUT or REC OUT
jacks

Transmitter

to AUDIO IN 8 jack

Connecting

cord (supplied)
Left Right
channel channel

(white) (red)
to LINE our {3
or REC our
jacks
fi

Stereo system,
TV. VCR. etc.

6) To connect to a headphones jack

Transmitter

to AUDtO IN Aiacks

Right channel
(red)

Left channel
(white)

Connecting cord
(supplied)

Unimatch plug
adaptor (not a
supplied)

to a headphone:
jack (stereo

Wmini jack)

to a headphones

. Discman.
Jack (stereo wALKMAN'. TV.
phone tack) VCR, etc.

SECTION 1
GENERAL

2 If your AC power adaptor is equipped

with a voltage selector, before connecting
the AC power adaptor to an AC outlet,
set it to the operating voltage in your area
with a screw driver.

AC power adaptor (supplied)

3 Connect the transmitter to a power
source.
Transmitter

-> to an AC
outlet

to DC 1N 9Vjack

AC power adaptor (supplied)

Notes

Do not connect to the AUE.O [N A jacks and Bjxlr at the
same time. it you do so. the audio signals may N mixed.

s Use only the supplied AC power adaptor. Do hm use
my other AC power adaptor.

W Polarity of the plug

- it the plug ot the AC power adaptor does not fit L1 the
AC outlet, use the supplied AC plug adaptor.

- When you connect the connecting cord directly to an
earphone jack, the audio signal will not be aurpur
through the right channel. L1 such a case, use the
separately sold PC-LléHC plug adaptor.

- WAU Corporation.

_
Charging the
rechargeable battery

The headphones are powered by a rechargeable
battery (supplied) or a dry cell battery (not
supplied). Charge the rechargeable battery before
use.

1 Check that the transmitter power is off.

2 Open the battery charger lid on the
transrnittert

3 Insert the supplied rechargeable battery
NCAA (HI), making sure to match
battery polarity with the ® and 9 marks
on the charger case.

The CHARGE indicator then lights up
and charging starts.

4 Close the battery charger lid on the
transmittert

Charging time and battery life

About 24 hours is required to fully charge the
rechargeable battery. Once fully charged, the
battery provides about 35 hours of operation.

One hour charging of the rechargeable battery
enables about 1 hours and 30 minutes of operation

Notes

' This system is designed to charge only the
supplied rechargeable battery lor safety. This
system cannot dtarge other batteries even i! they
have the same shape.

' Since little electric current is used for charging
there is no need to worry about overcharging.

' As this system is not affected by the memory
ellect ol the Ni-Cd battery, recharging the
supplied battery before it is completely
discharged is not a problem.

' When the transmitter power is tumed on, the
battery charger does not operate.

When to recharge the battery
Recharge the supplied battery when the POWER
indicator on headphones dims, and hissing or noise
occurs.

it the POWER indicator dims even after full
charging, the battery is completely dead. To
purchase a new rechargeable battery, consult your
nearest Sony dealer.