background image

I

FM Stereo/AM PLL
Synthesized Radio

Operating Instructions

Manual de Instrucciones

Sony Corporation ©1999 Printed in China

3-866-487-12(1)

 

English

A

B

C

¿

¿

¿

¿

¿

FM SENS

DX/LOCAL

VOL

MEGA BASS

ON/OFF

R03 (AAA) x 2

    

a

a

a

a

a

    

b

b

b

b

b

Belt
Holder

2

2

2

2

2

1

1

1

1

1

SRF-M73

PRESET/
LAP MEMO
1 to 5

BAND

LAP/RESET

START/STOP

POWER

SCAN

CLOCK

TUNE/

TIME SET

+/–

MODE

2

2

2

2

2

HOLD

Area

Channel step

North and South

10kHz

American countries
Other countries

9kHz

LAP/RESET

LAP

LAP/RESET

LAP/RESET

LAP/RESET

LAP/RESET

LAP

2

LAP

3

LAP

4

LAP

5

1

DX

LOCAL

FM SENS

Before You Begin

Thank you for choosing the Sports Walkman radio!
It will give you many hours of reliable service and
listening pleasure. Before operating the radio, please
read these instructions thoroughly and retain them for
future reference.

Features

• FM stereo/AM PLL (Phase Locked Loop)

Synthesized radio

• Up to 15 stations (10 for FM,  5 for AM) can be

preset for one-touch tuning.

• Auto Station Scan tuning for speedy locating of

stations

• Built-in digital clock and stopwatch
• Splash-resistant for all-weather use
• Countdown timer
• Hand strap and belt holder supplied
• MEGA BASS for dynamic bass sound

Notes on AM tuning step

The AM tuning step differs depending on areas.
The channel step is factory-set to 10 kHz.

Installing the Batteries

(See Fig. 

A

)

1

Remove the belt holder.

2

Slide and open the lid at the rear of the unit.

3

Insert two R03 (size AAA) batteries (not
supplied) with correct polarity.

Insert the batteries from the negative 

}

 terminal to

prevent a short-circuit, and in the order from 

1

 to

2

 as shown in the illustration.

Battery life

Using Sony R03 ( AAA) batteries

 

                (JEITA*)

FM : Approx.

12 hours

AM: Approx.

17 hours

* Measured by JEITA (Japan Electronics and

Information Technology Industries Association)
standards. The actual battery life may vary
depending on the circumstance of the unit.

When to replace the batteries

When the batteries become weak, the sound may
become weak or distorted, and “

i

” will flash in the

display. After that, when the batteries are used up,

i

” will light and the power of the unit will be

turned off. If this happens, replace the batteries with
new ones. The unit will switch to the clock mode from
any other mode.

Note

• The battery “

i

” indication in the display does not

show the remaining power of the battery.

Notes on battery

• Insert the batteries with correct polarity.
• Do not mix new and used batteries.
• The batteries can not be charged.
• Remove the batteries when the unit is not to be used

for a long time.

• Should any battery leakage occur, wipe the battery

case well and install new batteries.

Setting the Clock

The display will flash “12:00” when the batteries
are first inserted.

1

Hold down 

CLOCK 

for more than 2 seconds.

The hour flashes in the display.

2

Press 

TUNE/TIME SET

 

+

 or

 –

 until the correct

hour appears in the display.

Each press changes the digit(s) by one.
When you keep the button pressed, the digit(s)
change rapidly.

3

Press 

CLOCK

.

The minute starts to flash.

Repeat steps 2 and 3 to set the minute. After
setting the minute, press 

CLOCK

 again. The clock

starts from 0 seconds.

• 12-hour system: “AM 12:00” = midnight

“PM  12:00” = noon

AM

FM1*

FM2*

Stopwatch

Radio frequency

Countdown timer

N

N

N

N

N

˜

˜

˜

˜

˜

Area

Channel step

North and South

10kHz

American countries
Other countries

9kHz

Changing AM Channel
Step

The channel step of this unit is factory-set to 10
kHz. When needed, change the channel step before
listening to the radio.

1

Press 

POWER

 to turn off the power.

2

While holding down 

SCAN

, keep pressing

BAND

 for more than 5 seconds.

The channel step appears in the display for a few
seconds.
To go back to the original channel step, repeat step
2.

Note

• When the AM channel step is changed, the clock

time and the lap time will be kept but the preset
stations will be erased.

Selecting the Mode

You can use this unit as a clock, radio, stopwatch
or timer.

1

Press 

POWER

.

2

Press 

MODE

 to select a function mode.

Each press changes the display as follows:

• When the power is off, the display switches between

the clock and the stopwatch.

Playing the Radio

Manual Tuning
1

Connect the headphones to the 

2

 (headphones)

jack.

2

Press 

POWER

.

The “RADIO ON” indication will appear in the
display.

3

Adjust the volume using 

VOL

.

4

Press 

BAND

 to select the band.

Each press changes the band as follows:

* FM1 and FM2 are differenciated only for Preset

tuning. For Manual or Auto Station Scan tuning
of FM stations, select either band.

5

Press 

TUNE/TIME SET +

 or 

– 

to tune in to the

desired station.

• To see the current time while listening to the radio,

press 

CLOCK

. The current time will appear for a few

seconds and then the display returns to the radio
frequency.

• To turn off the radio, press 

POWER

.

• To improve the radio reception

FM :

Extend the headphones cord which functions as
the FM antenna (See Fig. 

B

-

a

).

AM:

Rotate the unit horizontally for optimum
reception. A ferrite bar antenna is built-in the
unit (See Fig. 

B

-

b

).

• Set 

FM SENS

 to 

LOCAL

 if interference is prevalent

and reception is too strong. Under normal
conditions, set it to 

DX

.

Auto Station Scan Tuning

The Auto Station Scan function locates stations and
automatically tunes in to them.

1

Press 

POWER

.

The “RADIO ON” indication will appear in the
display.

2

Adjust the volume using 

VOL

.

3

Press 

BAND

 to select the band.

4

Press 

SCAN

.

Scanning will start upward from the current
frequency. The “SCAN” indication flashes in the
display during scanning. When a station is
received, the “SCAN” indication stops flashing
and remains in the display for a few seconds. After
a few seconds, the radio will scan for another
station.

• When you have located a station and wish to stop

Auto Station Scan, press 

SCAN

 once. The “SCAN”

indication disappears.

• To cancel the Auto Station Scan, press 

SCAN

 or

TUNE +

 or 

.

Preset Tuning

You can preset 10 stations in FM (5 in FM1 and 5 in
FM2) and 5 stations in AM.

Presetting a station

Example: To set FM 90 MHz on FM2 onto Preset

button 

2

1

Press 

POWER

.

2

Press 

BAND

 to select FM2.

3

Tune in to FM 90 MHz ( See “Manual Tuning”
or “Auto Station Scan Tuning”).

4

Hold down 

PRESET/LAP MEMO

 button 

2

 for

more than 2 seconds.

The first beep will be followed by two beeps to
confirm the setting. The preset number “P2”
flashes and then remains in the display.

• To preset another station, repeat these steps.
• To change the preset station, tune in to the desired

station and hold down 

PRESET/LAP MEMO 

(

1

 to 

5

).

The new station will replace the previous station on
the preset button.

To recall a preset station
1

Press 

POWER

.

2

Adjust the volume using 

VOL

.

3

Press 

BAND 

to select the band.

4

Press 

PRESET/LAP MEMO 

(

1

 to 

5

).

Using the Countdown
Timer 

(Only when Listening

to the Radio)

You can use the built-in countdown timer to turn
off the radio automatically after a preset duration.

1

Press 

POWER

 to turn on the radio.

2

Press 

MODE

 to select the countdown timer.

The “TIMER” indication flashes and “2:00“
appears in the display.

3

Press  

TUNE/TIME SET +

 or 

 to set the desired

countdown duration for the timer.

The countdown duration can be set from 1 minutes
to 2 hours, in 1-minute increments.

4

Press 

START/STOP

.

The “TIMER” indication stops flashing and remains in
the display, and countdown starts. After the preset
countdown duration, the buzzer sounds and the radio
turns off.

• To stop the buzzer, press 

LAP/RESET

 or 

POWER

. The

buzzer will sound for 3 minutes if it is left on.

• To turn off the radio before the preset time, press

POWER

.

• To switch to the other modes, press 

MODE

.

Using the Stopwatch

The stopwatch can time up to 99 hours 59 minutes
and 59.99 seconds, in 1/100-second increments.

1

Press 

MODE

 to select the stopwatch.

The “STPW” indication will appear in the display.

2

Press 

START/STOP

 to start.

The display shows the elapsed time.

3

Press 

START/STOP

 to stop.

• To reset to zero, press 

LAP/RESET 

when the

stopwatch is in the stop status.

• The stopwatch comes with two display modes. To

switch to the hour-minute-second display, press

TUNE/TIME SET +

. To switch to the minute-second-

split second display, press 

TUNE/TIME SET –

.

• To switch to the other modes during counting, press

MODE

.

• To listen to the radio while the stopwatch is running,

press 

POWER

. The display will switch to the radio

frequency for a few seconds.

Lap Time Function

Press 

LAP/RESET

 while the stopwatch is running.

The“LAP” indication will flash, and the current lap
time will appear in the display for a few seconds.

The lap times are stored automatically onto 

PRESET/

LAP MEMO 1

 to 

5

.

Notes on lap time memory

• The lap time memory will store the last 5 lap times.

Earlier lap times are erased in progressive order.

• To display a stored the lap time, press the respective

PRESET/LAP MEMO

 button.

• To switch to the hour-minute-second display, press

TUNE/TIME SET +

. To switch to the minute-second-

split second display, press 

TUNE/TIME SET –

.

• To erase the lap time memory,  press 

LAP/RESET

,

and then 

START/STOP

.

Useful Functions

For Enhanced Bass Sound

Switch 

MEGA BASS

 to 

ON

.

The 

MEGA BASS

 function intensifies the bass sound for

richer quality audio reproduction.

To Prevent Accidental Change of
the Station Being Received
— HOLD Function

Press 

HOLD

.

H

” appears in the display to indicate all buttons are

locked.
To cancel HOLD, press 

HOLD

 once. “

H

” disappears in

the display.

• If HOLD is on

 

when you replace the batteries, it will

remain on after the batteries are replaced.

Using the Hand Strap

(See Fig. 

C

)

Use only the supplied hand strap.
Attach the hand strap as shown in the illustration.

Precautions

• Operate the unit only on 3 V DC with two R03 (size

AAA) batteries.

• Avoid exposure to temperature extremes, direct

sunlight, moisture, sand, dust or mechanical shock.
Never leave the unit in a car parked in the sun.

• Should anything fall into the unit, remove the batteries

and have the unit checked by qualified personnel
before operating it any further.

• To clean the casing, use a soft cloth dampened with a

mild detergent solution.

• In vehicles or buildings, radio reception may be

difficult or noisy. Try listening near a window.

Notes on Headphones

Road safety

Do not use headphones while driving, cycling, or
operating any motorized vehicle. It may create a
traffic hazard and is illegal in many areas. It can also
be potentially dangerous to play your headphones at
high volume while walking, especially at pedestrian
crossings. You should exercise extreme caution or
discontinue use in potentially hazardous situations.

Preventing hearing damage

Avoid using headphones at high volume.
Hearing experts advise against continuous, loud and
extended play. If you experience a ringing in your
ears, reduce volume or discontinue use.

Caring for others

Keep the volume at a moderate level. This will allow
you to hear outside sounds and to be considerate to
people around you.

Warning

If there is lightning when you are using the unit, take
off the headphones immediately.

Do not Immerse in Water

This product is designed to be splash-resistant, but
should not be immersed in water or come in
continuous contact with water.
• Before installing the battery, be sure to wipe off

drops of water on the unit.

• The supplied headphones are not meant to be

immersed
in water or come in continuous contact with water.
If they get wet, dry them with a soft cloth.
Never use an electric hair dryer while wearing the
headphones.

Notes on the Clock

• The clock’s digital display may become dim when

exposed to heat. It will recover when the
temperature returns to normal.

• When exposed to excessively high or low

temperature (for example, in a car), the flashing of
digits on the clock’s display may become slower.

• In a poorly lit place, the clock’s display may become

dim.

• Do not put the unit where its clock controls may be

depressed accidentally.

• Do not leave the clock in temperatures below 0˚C or

over 40˚C which may cause it to malfunction.

If you have any questions or problems concerning
your unit, please consult your nearest Sony dealer.

Troubleshooting Guide

Should any problem persist after you have made the
following checks, consult your nearest Sony dealer.

All buttons except HOLD do not operate at all.

• “

H

” is displayed. Press the 

HOLD 

button so that

H

” disappears.

Very weak or interrupted sound, or unsatisfactory
reception

• Weak batteries
• In a vehicle or in a building, listen near a window.

Display is dim, or no indication is displayed.

• Weak batteries.
• The unit is being used in extremely high or low

temperatures or in a place with excessive moisture.

The station cannot be received when a PRESET/LAP
MEMO(1 to 5) button is pressed.

• You chose the wrong preset number.
• The memory of the station has been erased. Preset the

station again.

Sound is not heard and “

i

i

i

i

i

” flashes in the display.

• Weak batteries.

Specifications

Time display:

12-hour system

Frequency range

 Frequency

 Channel step

FM : 87.5 – 108 MHz

0.1 MHz

AM: 530 – 1,710 kHz

10 kHz

FM : 87.5 – 108 MHz

0.05* MHz

AM: 531 – 1,710 kHz

9 kHz

* The frequency display is raised or lowered by steps

of 0.1 MHz. (Example: Frequency 88.05 MHz is
displayed as “88.0 MHz”).

Output

2

 jack (stereo minijack), load impedance 16 ohms

Power output

20 mW + 20 mW (at 10 % harmonic distortion)

Power requirements

3 V DC, two R03 (size AAA) batteries

Dimensions

Approx. 140.5 x 41 x 60.5 mm (w/h/d)
(4 

1

/

x 1 

5

/

x 2 

1

/

2

  inches) incl. projecting parts and

controls

Mass

Approx. 103 g (3.6 oz.) not incl. battery

Accessories Supplied

Stereo headphones (1)
Belt holder (1)
Hand strap (1)

Design and specifications are subject to change
without notice.

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