Radio Shack Clock Radio Chronomatic 278 User Guide

Cat. No. 12-1586A  
OWNER’S MANUAL  
Please read before using this equipment.  
Chronomatic-278  
AM/FM LED Alarm Clock Radio  
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CONTENTS  
Preparation ........................................................................................................... 4  
Connecting Power ........................................................................................... 4  
Installing the Backup Battery .......................................................................... 4  
Adjusting the Display ...................................................................................... 4  
Clock Operation ................................................................................................... 5  
Setting the Time .............................................................................................. 5  
Resetting the Seconds ............................................................................. 5  
Using the Alarms ............................................................................................. 6  
Setting the Alarm Time ............................................................................. 6  
Using the Buzzer Alarm ............................................................................ 6  
Using the Radio Alarm .............................................................................. 6  
Using the Snooze Feature .............................................................................. 7  
Using the Sleep Timer ..................................................................................... 7  
Playing the Radio ................................................................................................ 8  
Care and Maintenance ........................................................................................ 9  
FCC Information ............................................................................................ 10  
Specifications .................................................................................................... 11  
3
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PREPARATION  
• If the display flashes after a power  
failure, replace the battery and  
reset the clock.  
CONNECTING POWER  
Plug the Chronomatic-278’s power  
cord into a standard AC outlet. The dis-  
play flashes when the radio is first  
plugged in or if the power is interrupted  
and the backup battery is missing or  
weak.  
1. To remove the battery compart-  
ment cover, press and hold the  
tab in the direction of the arrow  
then lift off the cover.  
2. Snap the battery into the terminals  
and place it in the compartment.  
INSTALLING THE  
BACKUP BATTERY  
To keep the clock running in the event  
of a power failure, install a 9-volt back-  
up battery (not supplied). We recom-  
mend an alkaline battery, such as  
Radio Shack Cat. No. 23-553. A fresh  
battery powers the clock for up to 8  
hours, and sounds the alarm for up to  
10 minutes if power fails.  
Caution: Use only a fresh battery  
of the required size and type.  
3. Replace the cover.  
Notes:  
• Before you install the backup bat-  
tery, plug in the power cord to pre-  
vent unnecessary drain on the  
battery.  
ADJUSTING THE  
DISPLAY  
Set DIMMER LOW/HIGH to LOW or  
HIGH, depending on the amount of  
light in the room.  
• Replace the battery when BAT-  
TERY SENTINEL on the right side  
of the display lights.  
4
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CLOCK OPERATION  
Resetting the Seconds  
SETTING THE TIME  
This feature lets you reset the seconds  
to zero. This is handy if you want to set  
the clock to a precise reference time.  
1. Press and hold TIME SET, then  
press HOUR. The hour digits  
advance by 1 each time you press  
HOUR. Press and hold HOUR to  
rapidly advance the hour digits.  
Follow these steps to reset the sec-  
onds.  
1. Press and hold SLEEP, then press  
ALARM SET. The display shows  
the set time’s minutes and sec-  
onds.  
Note: The PM indicator appears  
on the top left of the display at  
12:00 noon and disappears at  
12:00 midnight.  
2. While you hold down TIME SET,  
press MINUTE. The minute digits  
advance by 1 each time you press  
MINUTE. Press and hold MINUTE  
to rapidly advance the minute dig-  
its.  
2. Continue to press and hold  
SLEEP, then press HOUR. The  
seconds reset to zero.  
3. Release SLEEP.  
Note: The minutes advance by one if  
the display showed more than 29 sec-  
onds when you reset the seconds.  
3. Release TIME SET when the  
desired time appears on the dis-  
play.  
5
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Using the Buzzer Alarm  
USING THE ALARMS  
To turn on the buzzer alarm, set  
Setting the Alarm Time  
ALARM/AUTO/OFF/ON  
ALARM  
.
to  
ALARM/AUTO/OFF/ON  
OFF  
.
1. Set  
to  
At the preset time, the alarm sounds  
and automatically turns off after 1 hour,  
59 minutes.  
To turn off the alarm before 1 hour, 59  
ALARM SET  
, then  
2. Press and hold  
ALARM/AUTO/OFF/ON  
minutes, set  
OFF  
to  
HOUR  
press  
play advances by one hour each  
HOUR  
. The time on the dis-  
.
time you press  
HOUR  
digits.  
. Hold down  
To adjust the volume of the alarm  
VOLUME  
to rapidly advance the hour  
sound, rotate  
.
Using the Radio Alarm  
ALARM/  
To turn on the radio alarm, set  
AUTO/OFF/ON  
AUTO  
. Be sure the  
to  
ALARM SET  
3. While you hold down  
,
station and volume are set. See “Play-  
ing the Radio.”  
MINUTE  
press  
display advances by one minute  
MINUTE  
. The time on the  
each time you press  
. Hold  
to rapidly advance  
the minute digits.  
At the preset time, the radio turns on  
and automatically turns off after 1 hour,  
59 minutes.  
MINUTE  
down  
To turn off the radio before 1 hour, 59  
ALARM/AUTO/OFF/ON  
minutes, set  
OFF  
to  
.
ALARM SET  
4. Release  
when the  
desired alarm time appears on the  
display.  
To view the preset alarm time at any  
ALARM SET  
time, press  
.
6
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To play the radio for 59 minutes, press  
SLEEP  
display. The radio plays for 59 min-  
USING THE SNOOZE  
FEATURE  
once. 0:59 appears on the  
utes, then turns off.  
To temporarily silence the buzzer or  
radio so it sounds again after 9 min-  
SNOOZE  
utes, press  
. You can repeat  
ALARM/AUTO/OFF/ON  
this until you set  
OFF  
to  
to turn off the alarm.  
To play the radio for more than 59 min-  
SLEEP  
utes, press and hold  
. 0:59 ap-  
pears on the display and the radio  
begins to play. While you hold down  
SLEEP  
HOUR  
once. 1:59 ap-  
, press  
To reset the alarm to sound again at  
the same alarm time on the next day,  
MINUTE  
pears. Then press  
display shows the desired sleep time.  
until the  
ALARM/AUTO/OFF/ON  
set  
back to  
ALARM AUTO  
or  
.
Note: If BATTERY SENTINEL lights  
SNOOZE  
while you press  
battery is getting low.  
, the backup  
To play the radio for less than 59 min-  
SLEEP  
utes, press and hold  
. 0:59 ap-  
pears on the display and the radio  
begins to play. While you hold down  
USING THE SLEEP  
TIMER  
SLEEP  
MINUTE  
. The time on the  
, press  
display decreases by one minute each  
MINUTE  
time you press  
.
The sleep timer lets you set the radio  
to play for up to 1 hour 59 minutes,  
then automatically turn off. This is use-  
ful if you want the radio to play as you  
go to sleep.  
ALARM/  
To use the sleep timer, set  
AUTO/OFF/ON OFF  
MINUTE  
Note: Hold down  
to rapidly de-  
to  
.
crease the playing time.  
ALARM/AUTO/OFF/  
Note: You can set  
ON AUTO ALARM  
if you want to  
To turn off the radio before the preset  
sleep time has elapsed, press  
to  
or  
use the sleep timer with the alarm  
function.  
SNOOZE  
.
7
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PLAYING THE RADIO  
1. Rotate VOLUME to its minimum  
6. To turn off the radio, set ALARM/  
level.  
AUTO/OFF/ON to OFF.  
2. Set ALARM/AUTO/OFF/ON to ON.  
Note: The AM antenna is built in. Ro-  
tate the clock radio for the best AM re-  
ception. For the best FM reception,  
fully extend the AC power cord (which  
is the FM antenna).  
3. Set FM/AM to the desired band.  
4. Rotate TUNING to the desired fre-  
quency.  
5. Rotate VOLUME to a comfortable  
listening level.  
8
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CARE AND MAINTENANCE  
Your clock radio is an example of superior design and craftsmanship. The following  
suggestions will help you care for your clock radio so you can enjoy it for years.  
Keep the clock radio dry. If it gets wet, wipe it dry immediately. Liquids  
might contain minerals that can corrode the electronic circuits.  
Handle the clock radio gently and carefully. Dropping it can damage  
circuit boards and cases and can cause the clock radio to work im-  
properly.  
Use and store the clock radio only in normal temperature environ-  
ments. Temperature extremes can shorten the life of electronic de-  
vices and distort or melt plastic parts.  
Keep the clock radio away from dust and dirt, which can cause pre-  
mature wear of parts.  
Wipe the clock radio with a damp cloth occasionally to keep it looking  
CLEANER  
new. Do not use harsh chemicals, cleaning solvents, or strong deter-  
gents to clean the clock radio.  
Modifying or tampering with the clock radio’s internal components can cause a mal-  
function and might invalidate your clock radio’s warranty and void your FCC autho-  
rization to use it. If your clock radio is not performing as it should, take it to your local  
Radio Shack store for assistance.  
9
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FCC INFORMATION  
Your radio might cause TV or radio in-  
terference even when it is operating  
properly. To determine whether your  
radio is causing the interference, turn  
off your radio. If the interference goes  
away, your radio is causing the inter-  
ference. Try to eliminate the interfer-  
ence by:  
• Moving your radio away from the  
TV or other radio  
• Contacting your local Radio  
Shack store for help  
If you cannot eliminate the interfer-  
ence, the FCC requires that you stop  
using the radio.  
10  
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SPECIFICATIONS  
Bands  
AM.................................................................................................530-1710 kHz  
FM....................................................................................................88-108 MHz  
Intermediate Frequency  
AM..........................................................................................................455 kHz  
FM........................................................................................................10.7 MHz  
Power Output.............................................................................320 mW (maximum)  
Speaker ...........................................3 Inch (5.7 cm) Ferrite, Dynamic-Type, 8 ohms  
Power Requirements.............................................12 V AC, 60 Hz, 6 Watts, DC 9 V  
1
1
Dimensions (HWD)..................................................................2 /4 × 10 × 5 /2 Inches  
(57 × 254 × 140 mm)  
Weight .........................................................................................................1 lb. 9 oz  
(0.71 kg)  
Specifications are typical; individual units might vary. Specifications are subject to  
change and improvement without notice.  
11  
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12  
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13  
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RADIO SHACK LIMITED WARRANTY  
This product is warranted against defects for 90 days from date of pur-  
chase from Radio Shack company-owned stores and authorized Radio  
Shack franchisees and dealers. Within this period, we will repair it with-  
bring your Radio Shack sales  
as proof of purchase date to any Radio Shack store. Warranty does  
out charge for parts and labor. Simply  
slip  
not cover transportation costs. Nor does it cover a product subjected to  
misuse or accidental damage.  
EXCEPT AS PROVIDED HEREIN, RADIO SHACK MAKES NO  
EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES ARE LIM-  
ITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED  
WARRANTIES CONTAINED HEREIN. Some states do not permit limita-  
tion or exclusion of implied warranties; therefore, the aforesaid limita-  
tion(s) or exclusion(s) may not apply to the purchaser.  
This warranty gives you specific legal rights and you may also have other rights which vary  
from state to state.  
We Service What We Sell  
9/94  
RADIO SHACK  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
9A5  
Printed in Hong Kong  
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