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
/
8
x 1
5
/
8
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.
