Optimus CTR-108 User Manual
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Cat. No. 14-1115
OWNER’S MANUAL
Please read before using this equipment.
A
CTR-108
AC•DC Portable
Cassette Recorder
CAUTION
!
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FEATURES
Your Optimus CTR-108 AC•DC Portable Cassette Reco rder is a multi- function recorder. Easy to use and reliable,
it is ideal for both personal and business use. Its features include:
Automatic Stop
— protects the tape
and tape handling parts by automatically stopping the tape when it reaches
the end.
Built-In Condenser Microphone
—
gives you high sensitivity for recording
speakers from several feet away, such
as at conferences.
MIC Jack
— lets you connect an optional external microphone to record
from longer distances.
Automatic Level Control (ALC) Circuit
— automatically ensures the
proper reco rd in g level.
Record Ind ica tor
— lights steadily to
confirm you are recording.
Supplied Earphone
— lets you listen
to the recorder without disturbing others.
Built-In Carrying Handle
— lets you
easily carry the cassette recorder anywhere you go.
Supplied Erase Plug
— makes eras-
ing a cassette tape easy.
Warning
: To prevent fire or shock
hazard, do not expose this product
to rain or moisture.
RISK OF ELECTRIC SHOCK.
DO NOT OPEN.
CAUTION
ELECTRIC SHOCK, DO NOT REMOVE
COVER OR BACK. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
: TO REDUCE THE RISK OF
!
Three Power Sources
— let you power the recorder from fou r C batteries,
standard AC power (wi th the supplied
power cord), or vehicle DC power (with
an optional DC adapter).
AUX Jack
— lets yo u connect an external sound source so you can record
directly from it.
© 1997, 1999 Tandy Corporation.
Optimus and RadioShack are registered trademarks used by Tandy Corporation.
All Rights Reserved.
2
This symbol is intended to alert you
to the presence of uninsulated dangerous voltage within the system’s
enclosure that might be of sufficient
magnitude to constitute a risk of electric shock. Do not open the system’s
case.
This symbol is intended to inform you
that important operating and maintenance instructions are included in the
literature accompanying this system.
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CONTENTS
Preparation.............................................................................................................4
Connecting Power.............................................................................................4
Using Internal Batteries..............................................................................4
Using AC Power.......................................................................................... 5
Using Vehicle Battery Power.......................................................................5
Using an Earphone........................................................................................... 6
Listening Safely ..........................................................................................6
Traffic Safety............................................................................................... 6
Operation................................................................................................................7
Loading a Cassette Tape ..................................................................................7
Playing a Cassette Tape....................................................................................7
Recording..........................................................................................................8
Using the Built-In Microphone .................................................................... 8
Using an External Microphone ...................................................................8
Recording from a Connected Audio Source...............................................9
Tape Tips.........................................................................................................10
Recommended Tap es............... ....... ...... ....... ...... ....... ...... .........................10
Erasing a Cassette Tape........................................................................... 10
Preventing Accidental Erasure .................................................................10
Restoring Tape Tension and Sound Quality.............................................. 11
Maintenance......................................................................................................... 12
Cleaning the Tape-H and ling Parts ......................................... ....... ...... ...... ...... 13
Specifications ............. ...... ...... ....... ...... ....... ...... ....... ...... ....... ............................... 14
3
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PREPARATION
CONNECTING POWER
You can power the CTR-108 from an y
of three power sources:
• Internal batteries
• Standard AC power (with the supplied power cord)
• Your vehicle’s cigarette-lighter
socket (with an optional DC
adapter)
Note
: Connecting an AC power cord or
a DC adapter disconnects the intern al
batteries.
Using Internal Batteries
You can power the CTR-108 from four
C batteries (not supplied). For the best
performance, we recomme nd alkaline
batteries, such as RadioShack Cat.
No. 23-551/651.
2. Install the batteries as indicated
by the polarity symbols (+ and –)
marked inside the compartment.
Cautions:
• Use only fresh batteries of the
required size and recommended type.
• Do not mix old and new batter-
ies, different types of batteries
(standard, alkaline, or rechargeable), or rechargeable
batteries of different capacities.
3. Replace the cover.
When the RECORD indicator becomes dim, replace the batteries.
Cautions:
• Always dispose of old batteries
promptly and properly.
• Never leave dead, old, or weak
batteries in the CTR-108. They
can leak chemicals and corrode or
damage electronic circuits.
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1. Press down on the battery compartment cover and slide it off in
the direction of the arrow.
4
• If you do not plan to use the CTR108 for a week or more, or if you
plan to use an adapter only,
remove the batteries to protect the
CTR-108 from possible battery
leakage.
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Using AC Power
To power the CTR-108 from standard
AC power, plug the supplied power
cord into the
the CTR-108. Then plug the oth er end
into a standard AC outlet.
CTR-108 CASSETTE RECORDER
Cautions:
• Always plug the power cord into
the
into the AC outlet, and always
unplug the power cord from the
AC outlet before you unplug it
from the
• The power cord has a polarized
plug that is designed to fit into the
recorder’s jack only one way. If the
plug does not easily fit into the
jack, do not force it. Simply turn it
over and try again.
AC I N jack on th e side of
OPTIMUS
AC/DC/BATTERY
AC IN jack before you plug it
AC IN jac k.
Cautions:
• You must use a DC adapter that
supplies 6 volts and delivers at
least 300 milliamps. Its c enter tip
must be set to negative, and its
plug must correctly fit the CTR108’s
DC IN 6V jack. The recom-
mended adapter meets these
specifications. Using an adapter
that does not could damage the
CTR-108 or the adapter.
• Always plug the adapter into the
CTR-108 before you plug it into
the cigarette-lighter socket, and
always unplug the adapter from
the cigarette-lighter socket before
you unplug it from the CTR-108.
DC IN 6V
AUX
REM
EAR
VOLUME
MIC
Using Vehicle Battery Power
You can power the CTR-108 from your
vehicle’s cigarette-lighter socket using
a DC adapter, such as Cat. No. 2731802 (not supplied).
1. Set the DC adapter’s voltage
switch to 6V.
2. Insert the adapter’s barrel plug
into the CTR-108’s
DC IN 6V jack.
3. Insert the adapter’s larger plug
into the vehicle’s cigarette-lighter
socket.
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