Radio Shack 12 1607 User Manual

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Cat. No. 12-1607  
OWNER’S MANUAL  
Please read before using this equipment.  
CHRONOMATIC-312  
AM/FM LED Alarm Clock Radio  
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FEATURES  
Your Radio Shack Chronomatic-312 AM/FM LED Alarm  
Clock Radio is a precision timepiece in a fun cube case.  
It has these features:  
Large Display — lets you easily read the clock display.  
Choice of Alarms — lets you wake to the sound of a buzzer  
or the radio.  
Sleep Timer — plays the radio for up to 1 hour and 59 min-  
utes before it automatically turns off.  
Snooze Feature — silences the alarm and sets it to sound  
again in about 9 minutes, so you can get a few extra minutes  
of sleep.  
Battery Backup — keeps the clock running for up to 8  
hours if power is interrupted.  
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Battery Sentinel — lets you know when the backup battery  
needs to be replaced.  
Earphone Jack — lets you connect a monaural earphone  
to listen in privacy.  
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PREPARATION  
CONNECTING POWER  
Plug the clock radio’s power cord into a standard AC outlet.  
The display flashes.  
Note: The power cord’s plug is polarized (one side is larger  
than the other). If it does not fit, turn it over. Do not force it.  
INSTALLING THE BACKUP BATTERY  
To keep the clock running during an AC power failure, install  
a 9-volt battery. We recommend an alkaline battery, such as  
Radio Shack Cat. No. 23-553.  
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Notes:  
To prevent unnecessary drain on the backup battery,  
plug in the AC power cord before you install the battery.  
• The clock’s display does not light while operating from  
battery backup power, but the clock keeps time for up  
to 8 hours.  
• If the display flashes after a power failure, the battery is  
too low to run the clock. Replace the battery and reset  
the clock.  
1. Press the latch on the battery  
compartment cover and slide  
the cover in the direction of  
the arrow and remove it.  
2. Snap the battery into the bat-  
tery terminals. Then put the  
battery in the compartment.  
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3. Replace the cover.  
The BATTERY SENTINEL lights automatically if the battery  
needs to be replaced or is not installed.  
USING EARPHONES  
To listen in privacy, turn VOLUME to its lowest setting and  
plug a monaural earphone with a 1/8-inch plug into the EAR-  
PHONE jack. Your local Radio Shack store has a complete  
line of earphones.  
Listening Safely  
To protect your hearing, follow these guidelines when you  
use an earphone.  
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• Set the volume to the lowest setting before you begin  
listening. After you begin listening, adjust the volume to  
a comfortable level.  
• Do not listen at extremely high volume levels. Extended  
high volume listening can lead to permanent hearing  
loss.  
• Once you set the volume, do not increase it. Over time,  
your ears adapt to the volume level, so a volume level  
that does not cause discomfort might still damage your  
hearing.  
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RADIO OPERATION  
1. Set VOLUME counterclockwise  
to its minimum setting.  
2. Set ON/OFF/AUTO/ALARM to ON to turn on the radio.  
3. Set AM/FM to your desired band.  
4. Adjust VOLUME as desired.  
5. Adjust TUNING to tune to your desired station.  
Note: The radio has two antennas. The AM antenna is  
built-in. Rotate the radio for the best AM reception. For  
the best FM reception, fully extend the power cord  
which serves as the FM antenna.  
6. Set ON/OFF/AUTO/ALARM to OFF to turn off the radio.  
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CLOCK OPERATION  
SETTING THE TIME  
1. Press and hold TIME SET.  
2. Repeatedly press (or press and hold) HOUR to set the  
hour.  
Note: The PM indicator lights for a PM hour.  
3. Repeatedly press (or press and hold) MINUTE to set the  
minutes.  
4. Release TIME SET.  
USING THE ALARM  
To use the alarm, you must first set the alarm time and then  
turn on the alarm.  
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Setting the Alarm Time  
1. Press and hold ALARM SET.  
2. Repeatedly press (or press and hold) HOUR to set the  
alarm hour.  
Note: The PM indicator lights for a PM hour.  
3. Repeatedly press (or press and hold) MINUTE to set the  
alarm minutes.  
4. Release ALARM SET.  
Notes:  
• When you release ALARM SET, the current time returns  
to the display.  
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To view the alarm time while the current time is dis-  
played, press ALARM SET.  
Turning the Alarm Buzzer/Radio On or Off  
You can set your clock radio to either sound a buzzer or play  
the radio at the preset alarm time.  
To sound a buzzer, set ON/OFF/AUTO/ALARM to ALARM.  
To play the radio, make sure the radio is tuned to your de-  
sired station. Then set ON/OFF/AUTO/ALARM to AUTO.  
To turn off the buzzer or radio, set ON/OFF/AUTO/ALARM to  
OFF or press ALARM SET.  
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Notes:  
• The  
indicator on the lower left corner of the display  
lights when the alarm is turned on.  
• If you do not turn off the alarm, the buzzer or radio  
sounds for 1 hour, 59 minutes.  
• If you press ALARM SET to silence the alarm, the alarm  
sounds again the next day at the preset alarm time.  
• If you set ON/OFF/AUTO/ALARM to OFF to silence the  
alarm, you must set it to AUTO or ALARM again to have  
the alarm sound the next day at the preset alarm time.  
Using SNOOZE  
To silence the alarm but have it sound again in about 9 min-  
utes, press SNOOZE.  
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Notes:  
• You can repeatedly press SNOOZE for up to 1 hour and  
59 minutes. After 1 hour and 59 minutes, the alarm  
buzzer or radio does not come on again until the next  
day at the preset alarm time.  
• If BATTERY SENTINEL lights when you press SNOOZE,  
the backup battery is getting low.  
USING THE SLEEP TIMER  
You can set the radio to play for up to 1 hour and 59 minutes  
and then automatically turn off.  
To set the sleep timer, set ON/OFF/AUTO/ALARM to OFF, AUTO,  
or ALARM, then press SLEEP.  
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For a playing time of 59 minutes or less, press and hold  
down SLEEP. Then repeatedly press (or press and hold)  
MINUTE until the display shows the desired minute setting.  
For a playing time between 1 hour and 1 hour, 59 minutes,  
press and hold down SLEEP. Then press HOUR until the sleep  
timer passes 0:00and 1:59shows on the display. Contin-  
ue to hold down SLEEP and press MINUTE until the display  
shows the desired setting.  
To turn off the sleep timer before it automatically turns off,  
press SNOOZE.  
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THE FCC WANTS YOU TO KNOW  
Your Radio Shack Chronomatic-312 AM/FM LED Alarm  
Clock Radio might cause TV or radio interference even  
when it is operating properly. To determine whether your  
clock radio is causing the interference, turn it off. If the inter-  
ference goes away, your clock radio is causing the interfer-  
ence. Try to eliminate the interference by:  
• Moving your clock radio away from the receiver  
• Contacting your local Radio Shack store for help  
If you cannot eliminate the interference, the FCC requires  
that you stop using the clock radio.  
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MAINTENANCE  
The following suggestions will help you care for your clock  
radio so you can enjoy it for years.  
• Use only a fresh battery of the required size and type.  
• Keep the clock radio dry. If it gets wet, wipe it dry imme-  
diately.  
• Keep the clock radio away from dust and dirt.  
• Use and store the clock radio only in normal tempera-  
ture environments.  
• Handle the clock radio gently and carefully.  
• Wipe the clock radio with a damp cloth occasionally to  
keep it looking new. Do not use harsh chemicals, clean-  
ing solvents, or strong detergents to clean the clock  
radio.  
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Modifying or tampering with the clock radio’s internal com-  
ponents can cause a malfunction and might invalidate its  
warranty and void your FCC authorization to operate it. If  
your clock radio is not performing as it should, take it to your  
local Radio Shack store for assistance.  
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SPECIFICATIONS  
BANDS  
AM ...................................................................530-1710 kHz  
FM...................................................................... 88-108 MHz  
Intermediate Frequency  
AM.............................................................................455 kHz  
FM...........................................................................10.7 MHz  
GENERAL  
Power Requirements ..................... 120 VAC, 60 Hz, 6 Watts  
DC 9V Power Output .................................................250 mV  
Speaker.................... 8 Ohms, 6.35 cms (21/2 ins.), 0.5 Watts  
Dimensions ............................... 41/2 ¥ 51/8 ¥ 41/2 Ins. (HWD)  
(114 ¥ 130 ¥ 114 mm)  
Weight............................... 1.7 lbs. (680 g) (Without Battery)  
Specifications are typical; individual units might vary. Specifica-  
tions are subject to change and improvement without notice.  
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RADIO SHACK LIMITED WARRANTY  
This product is warranted against defects for 90 days from date of purchase  
from Radio Shack company-owned stores and authorized Radio Shack franchi-  
sees and dealers. Within this period, we will repair it without charge for parts and  
labor. Simply bring your Radio Shack sales slip as proof of purchase date to  
any Radio Shack store. Warranty does 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 LIMITED IN DURA-  
TION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CON-  
TAINED HEREIN. Some states do not permit limitation or exclusion of implied  
warranties; therefore, the aforesaid limitation(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.  
9/94  
We Service What We Sell  
RADIO SHACK  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
9A5  
Printed in Hong Kong  

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