Optimus Cassette Player CTR 110 User Manual

14-733.fm Page 1 Thursday, July 1, 1999 9:00 AM  
Cat. No. 14-733  
OWNER’S MANUAL  
Please read before using this equipment.  
CTR-110  
Extended Bass AM/FM  
Cassette Recorder  
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CONTENTS  
Preparation ..................................................................................................... 4  
Power Sources .......................................................................................... 4  
Using Batteries .................................................................................... 4  
Using AC Power .................................................................................. 5  
Using Vehicle Power ........................................................................... 5  
Using Earphones ....................................................................................... 6  
Listening Safely ................................................................................... 6  
Traffic Safety ....................................................................................... 7  
Radio Operation ............................................................................................. 8  
Cassette Player Operation ............................................................................. 9  
Loading a Cassette Tape ........................................................................... 9  
Playing a Cassette Tape ............................................................................ 9  
Recording ................................................................................................ 10  
Recording from the Radio ................................................................. 10  
Making Live Recordings .................................................................... 10  
Tape Tips ................................................................................................. 11  
Recommended Tapes ....................................................................... 11  
Recording Over or Erasing a Cassette Tape ..................................... 11  
Preventing Accidental Erasure .......................................................... 11  
Restoring Tape Tension and Sound Quality ...................................... 12  
Care and Maintenance ................................................................................. 13  
Cleaning the Tape Handling Parts ........................................................... 14  
The FCC Wants You to Know .................................................................. 14  
Specifications ............................................................................................... 15  
3
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PREPARATION  
2. Put four C batteries in the com-  
partment, as indicated by the  
polarity symbols (+ and –)  
marked inside.  
POWER SOURCES  
You can operate the CTR-110 using:  
• Internal battery power (using  
four C batteries)  
• AC power (using an optional AC  
adapter)  
Illustration  
• Vehicle battery power (using an  
optional DC adapter)  
Cautions:  
Note: Internal batteries automatically  
disconnect when you connect an  
adapter.  
• Use only fresh batteries of the  
required size and recom-  
mended type.  
Using Batteries  
• Do not mix old and new bat-  
teries, different types of bat-  
teries (standard, alkaline, or  
rechargeable), or recharge-  
able batteries of different  
capacities.  
You can power the CTR-110 from  
four C batteries (not supplied). For  
the best performance and longest  
life, we recommend alkaline batter-  
ies, such as RadioShack Cat. No. 23-  
551.  
3. Replace the cover and snap it  
shut.  
1. Turn the CTR-110 on its face,  
pull the tabs on the battery com-  
partment’s cover and remove  
the cover.  
If the CTR-110 does not operate  
properly or if the sound weakens or  
distorts, replace the batteries.  
Cautions:  
Illustration  
• Dispose of the old batteries  
promptly and properly. Do not  
bury or burn them.  
• Never leave dead, old, or weak  
batteries in the CTR-110. Batter-  
ies can leak chemicals that can  
destroy electronic parts.  
4
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• If you do not plan to use the  
CTR-110 from battery power for  
a month or more, or if you plan  
to use only an adapter, remove  
the batteries to protect the CTR-  
110 from possible battery leak-  
age.  
2. Insert the AC adapter’s 5.5 mm  
outer diameter/2.1 mm inner  
diameter barrel plug into the  
adapter cord’s small end so it  
reads –TIP, then insert the  
adapter’s plug into the DC 6V  
jack on the back of the CTR-110.  
Using AC Power  
Illustration  
You can power the CTR-110 from  
standard AC power using an optional  
AC adapter, such as RadioShack  
Cat. No. 273-1663.  
3. Plug the adapter into a standard  
AC outlet.  
Cautions:  
• The recommended AC adapter  
supplies 6 volts and delivers at  
least 400 milliamps. Its center tip  
is set to negative, and its plug  
correctly fits the CTR-110’s DC  
6V jack. Using an AC adapter  
that does not meet these specifi-  
cations could damage the CTR-  
110 or the adapter.  
Using Vehicle Power  
You can power the CTR-110 from  
your vehicle’s battery using an op-  
tional DC adapter, such as Ra-  
dioShack Cat. No. 273-1802.  
Cautions:  
• The recommended DC adapter  
supplies 6 volts and delivers at  
least 400 milliamps. Its center tip  
is set to negative, and its plug  
correctly fits the CTR-110’s DC  
6V jack. Using a DC adapter that  
does not meet these specifica-  
tions could damage the CTR-  
110 or the adapter.  
• Always plug the adapter into the  
CTR-110 before you plug it into  
the AC outlet, and always  
unplug the adapter from the AC  
outlet before you unplug it from  
the CTR-110.  
1. Set the AC adapter’s voltage  
switch to 6V.  
5
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1
• Always plug the adapter into the  
CTR-110 before you plug it into  
the cigarette-lighter socket, and  
always unplug the adapter from  
Insert the earphones’ /8-inch plug  
into the PHONE jack on the top of the  
CTR-110.  
the  
cigarette-lighter  
socket  
Illustration  
before you unplug it from the  
CTR-110.  
Follow these steps to use your vehi-  
cle’s battery.  
: Connecting earphones auto-  
Note  
matically disconnects the built-in  
speaker.  
Illustration  
Listening Safely  
To protect your hearing, follow these  
guidelines when you use earphones.  
1. Set the DC adapter’s voltage  
switch to 6V.  
• Set the volume to the lowest set-  
ting before you begin listening.  
After you begin listening, adjust  
the volume to a comfortable  
level.  
2. Insert the DC adapter’s barrel  
plug into the CTR-110’s DC 6V  
jack.  
3. Insert the other end of the  
adapter into your vehicle’s  
cigarette-lighter socket.  
• Do not listen at extremely high  
volume levels. Extended high-  
volume listening can lead to per-  
manent hearing loss.  
USING EARPHONES  
• 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.  
For private listening, you can con-  
nect a pair of earphones (not sup-  
1
plied) with a /8-inch plug. Your local  
RadioShack store carries a wide se-  
lection of earphones.  
6
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Traffic Safety  
Do not wear earphones while operat-  
ing a motor vehicle or riding a bicy-  
cle. This can create a traffic hazard  
and could be illegal in some areas.  
Even though some earphones are  
designed to let you hear some out-  
side sounds when listening at normal  
volume levels, they still can present a  
traffic hazard.  
7
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RADIO OPERATION  
1. Set FUNCTION to RADIO to turn  
4. Adjust VOLUME MIN/MAX to a  
on the radio.  
comfortable listening level.  
Illustration  
Illustration  
2. Set BAND to AM or FM.  
5. Set E-BASS ON/OFF to ON to  
boost low frequency sounds. Set  
it to OFF for normal bass sound.  
Illustration  
Illustration  
3. Rotate the tuning control to  
select the desired station.  
6. Set FUNCTION to TAPE to turn  
off the radio.  
Illustration  
Illustration  
Notes:  
• The AM antenna is built-in. To  
improve AM reception, reposi-  
tion the CTR-110.  
• For the best FM reception,  
fully extend the telescoping  
antenna and swivel it to the  
position that produces the  
best reception.  
8
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CASSETTE PLAYER OPERATION  
4. Gently close the compartment’s  
LOADING A CASSETTE  
TAPE  
door.  
1. Take up any slack in the tape by  
turning the cassette’s hub with a  
pencil. If you do not remove  
excess slack, the tape could  
become tangled in the record/  
playback mechanism.  
PLAYING A CASSETTE  
TAPE  
1. Set FUNCTION to TAPE.  
2. With a cassette loaded in the  
compartment, press PLAY.  
Illustration  
Illustration  
2. Press STOP/EJECT to open the  
Notes:  
cassette compartment’s door.  
• Press PAUSE to temporarily  
stop playback. Press PAUSE  
again to resume playback.  
Illustration  
Illustration  
3. Load the cassette with its open  
edge facing up, its full reel to the  
right, and the desired side  
toward you.  
• Press FAST-F  
to fast-for-  
to  
ward, or REWIND  
rewind the tape to the desired  
location.  
Illustration  
Illustration  
9
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14-733.fm Page 10 Thursday, July 1, 1999 9:00 AM  
3. Adjust VOLUME MIN/MAX to a  
Recording from the Radio  
comfortable listening level.  
1. Load a blank cassette tape, or  
one you want to record over, into  
the cassette compartment.  
4. Set E-BASS ON/OFF to ON to  
boost low frequency sounds. Set  
it to OFF for normal bass sound.  
2. Set FUNCTION to RADIO.  
5. Press STOP/EJECT to stop play-  
back before it automatically  
stops. Press STOP/EJECT again  
to open the cassette compart-  
ment and remove the cassette  
tape.  
3. Set BAND to AM or FM.  
4. Adjust TUNING to the station you  
want to record.  
5. Press RECORD to begin record-  
ing. PLAY and RECORD lock  
down.  
RECORDING  
You can record from the radio or use  
the built-in microphone to make a live  
recording.  
Illustration  
: Before you load a cassette  
Caution  
:
To temporarily stop  
Note  
tape for recording, be sure its erase-  
protection tabs are in place. If you  
force down RECORD when a tape  
side’s erase-protection tab is miss-  
ing, you will damage the record  
mechanism (see “Preventing Acci-  
dental Erasure” on Page 11).  
recording, press PAUSE. To  
resume recording, press PAUSE  
again.  
6. Press STOP/EJECT to stop  
recording.  
Making Live Recordings  
:
Notes  
• The CTR-110’s Automatic Level  
Control (ALC) automatically  
adjusts the recording level. VOL-  
UME MIN/MAX has no effect on  
recording.  
Follow these steps to make live re-  
cordings using the built-in micro-  
phone.  
1. Load a blank cassette tape, or  
one you want to record over, into  
the cassette compartment.  
To record on the other side of  
the tape, you must turn it over.  
2. Set FUNCTION to TAPE.  
10  
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3. Place the CTR-110 1–2 feet  
from the recording source.  
Preventing Accidental  
Erasure  
4. Press RECORD to begin record-  
ing. PLAY and RECORD lock  
down.  
Cassette tapes have two erase-  
protection tabs, one for each side.  
When a tab is in place, you can  
record on that side.  
:
To temporarily stop  
Note  
recording, press PAUSE. To  
resume recording, press PAUSE  
again.  
To protect a recording from being ac-  
cidentally recorded over or erased,  
use a screwdriver to remove one or  
both of the cassette tape’s erase-  
protection tabs. This prevents  
RECORD from being pressed.  
5. Press STOP/EJECT to stop  
recording.  
TAPE TIPS  
Illustration  
Recommended Tapes  
Tape quality greatly affects the qual-  
ity of the recording. We recommend  
extended-range or low noise type 1  
regular length (60 or 90-minute)  
normal-bias cassette tapes. We do  
not recommend long-play cassette  
tapes such as C-120s because they  
are thin and can easily tangle.  
If you later decide to record on a tape  
side after you have removed the  
erase-protection tab, place a piece of  
strong plastic tape over that side’s  
erase-protection hole. Be sure you  
cover only the hole originally covered  
by the erase-protection tab.  
Recording Over or Erasing a  
Cassette Tape  
To record over a cassette tape, sim-  
ply record as usual. The cassette  
deck records over the previous re-  
cording.  
Illustration  
You can quickly erase both sides of a  
cassette tape using a bulk tape eras-  
er available at your local RadioShack  
store.  
11  
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Caution: Removing the erase-  
protection tabs does not prevent a  
bulk eraser from erasing a cassette  
tape.  
Restoring Tape Tension and  
Sound Quality  
After you play a cassette tape sever-  
al times, the tape might become  
tightly wound on the reels. This can  
cause playback sound quality to de-  
teriorate.  
To restore the sound quality, fast-  
forward the tape from the beginning  
to the end of one side, then com-  
pletely rewind it. Then loosen the  
tape reels by gently tapping each  
side of the cassette’s outer shell on a  
flat surface.  
Caution: Be careful not to damage  
the cassette when tapping it. Do not  
touch the exposed tape or allow any  
sharp objects near the cassette.  
12  
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CARE AND MAINTENANCE  
Your Optimus CTR-110 Extended Bass AM/FM Cassette Recorder is an exam-  
ple of superior design and craftsmanship. The following suggestions will help you  
care for your CTR-110 so you can enjoy it for years.  
Keep the CTR-110 dry. If it gets wet, wipe it dry immediately. Liq-  
uids might contain minerals that can corrode the electronic cir-  
cuits.  
Use and store the CTR-110 only in normal temperature environ-  
ments. Temperature extremes can shorten the life of electronic  
devices, damage batteries, and distort or melt plastic parts.  
Keep the CTR-110 away from dust and dirt, which can cause pre-  
mature wear of parts.  
Handle the CTR-110 gently and carefully. Dropping it can damage  
circuit boards and cases and can cause the CTR-110 to work im-  
properly.  
Use only fresh batteries of the required size and type. Batteries  
can leak chemicals that damage your CTR-110’s electronic parts.  
Wipe the CTR-110 with a damp cloth occasionally to keep it look-  
ing new. Do not use harsh chemicals, cleaning solvents, or strong  
detergents to clean the CTR-110.  
Modifying or tampering with the CTR-110’s internal components can cause a  
malfunction, invalidate your CTR-110’s warranty, and void your FCC authoriza-  
tion to operate it. If your CTR-110 is not performing as it should, take it to your  
local RadioShack store for assistance.  
13  
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14-733.fm Page 14 Thursday, July 1, 1999 9:00 AM  
clean the capstan, pinch rollers,  
tape guides, and tape heads.  
CLEANING THE TAPE  
HANDLING PARTS  
Dirt, dust, or particles of the tape’s  
coating can accumulate on the tape  
heads and other parts that the tape  
touches. This can greatly reduce the  
cassette player’s performance. To  
prevent noise and poor high-  
frequency response, clean the cas-  
sette player’s tape handling parts af-  
ter every 20 hours of use. Your local  
RadioShack store sells a complete  
line of cassette deck cleaning sup-  
plies.  
Illustration  
STOP/EJECT  
6. Press  
and close  
the cassette compartment’s  
cover. Then reconnect power.  
THE FCC WANTS YOU  
TO KNOW  
FUNCTION  
TAPE  
.
1. Set  
to  
2. Remove the batteries and dis-  
connect any other power source.  
Your CTR-110 might cause TV or ra-  
dio interference even when it is oper-  
ating properly. To determine whether  
your CTR-110 is causing the interfer-  
ence, turn off your CTR-110. If the in-  
terference goes away, your CTR-110  
is causing it. Try to eliminate the in-  
terference by:  
STOP/EJECT  
3. Press  
to open the  
cassette compartment’s cover.  
4. Hold down the erase-protection  
RECORD  
tab sensor, then press  
to expose the tape handling  
parts.  
• Moving your CTR-110 away  
from the receiver  
Illustration  
• Connecting your CTR-110 to an  
outlet that is on a different elec-  
trical circuit from the receiver  
• Contacting your local Ra-  
dioShack store for help  
If you cannot eliminate the interfer-  
ence, the FCC requires that you stop  
using your CTR-110.  
5. Use a cotton swab dipped in  
tape head cleaning solution or  
denatured alcohol to gently  
14  
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SPECIFICATIONS  
RADIO  
Frequency Range:  
FM............................................................................................. 88–108 MHz  
AM ........................................................................................ 530–1710 kHz  
Antenna:  
FM ............................................................................... Telescoping Antenna  
AM ............................................................................................. Ferrite Rod  
CASSETTE PLAYER  
Track System ................................................................................ 2 Track Mono  
Tape Speed ............................................................................... 17/8 inch/second  
Recording System ........................................................ DC Bias, Magnet Erase  
Frequency Response (Play) at ±6 dB ........................................... 125–6300 Hz  
Frequency Response (Record/Play) at ±6 dB................................ 125–4000 Hz  
Wow and Flutter .......................................................................... 0.3% (WRMS)  
GENERAL  
Power Requirements ....................................................... DC 6V (4 C Batteries)  
Power Consumption .................................................................................. 0.7 W  
Dimensions .......................................................... 55/16 × 11 × 33/4 Inches (HWD)  
(135 x 280 x 95 mm)  
Weight ..................................................................................................... 38.8 oz  
(1.1 Kg)  
Specifications are typical; individual units might vary. Specifications are subject  
to change and improvement without notice.  
15  
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14-733.fm Page 16 Thursday, July 1, 1999 9:00 AM  
Limited Ninety-Day Warranty  
This product is warranted by RadioShack against manufacturing defects in material and workman-  
ship under normal use for ninety (90) days from the date of purchase from RadioShack company-  
owned stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED  
HEREIN, RadioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES,  
INCLUDING THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,  
ARE LIMITED IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES  
CONTAINED HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABIL-  
ITY OR RESPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RE-  
SPECT TO ANY LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE  
OR PERFORMANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WAR-  
RANTY, INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVE-  
NIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT,  
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN AD-  
VISED OF THE POSSIBILITY OF SUCH DAMAGES.  
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of in-  
cidental or consequential damages, so the above limitations or exclusions may not apply to you.  
In the event of a product defect during the warranty period, take the product and the RadioShack  
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un-  
less otherwise provided by law: (a) correct the defect by product repair without charge for parts and  
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase  
price. All replaced parts and products, and products on which a refund is made, become the prop-  
erty of RadioShack. New or reconditioned parts and products may be used in the performance of  
warranty service. Repaired or replaced parts and products are warranted for the remainder of the  
original warranty period. You will be charged for repair or replacement of the product made after the  
expiration of the warranty period.  
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,  
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or  
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs  
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as  
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs  
of product removal, installation, set-up service adjustment or reinstallation.  
This warranty gives you specific legal rights, and you may also have other rights which vary from  
state to state.  
RadioShack Customer Relations, Dept. W, 100 Throckmorton St., Suite 600, Fort Worth, TX 76102  
We Service What We Sell  
3/97  
RadioShack  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
12A7  
Printed in Hong Kong  
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