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OWNER’S MANUAL
Please read before using this equipment.
AM/FM Stereo
Cassette Player
Cat. No. 14-1233
SCP-90
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FEATURES
Your Optimus SCP-90 AM/FM Stereo Cassette Player is lightweight, portable, and easy to operate. It delivers excellent sound through the supplied in-ear
sports headphones or through your speaker s, and includes these feat ures:
All Weather Design
— the sealed cassette compart-
ment protects your tape from wind, dust, and rain.
Auto-Stop
— automatically stops tape playback at
the end of a tape side to protect the tape-handling
parts.
Bass Boost
Automatic Frequency Control Circuit
— provides richer, fuller bass sound.
— helps lock
FM tuning for drift-free reception.
Three Power Sources
— let you power the SCP-90
from internal batteries, AC power, or vehicle battery
power.
©
1998 Tandy Corporation.
Optimus and RadioShack are registered trademarks used by
All Rights Reserved.
Tandy Corporation.
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Removable Belt Clip — allows hands-free carrying
when you are on the go.
Note: You need two AA batteries, an AC adapter, or
a DC adapter to power the SCP-90. To listen to your
SCP-90, you can use the supplied in-ear sports
headphones (or other headphones) or a pair of amplified speakers (not supplied) with a
1
/8-inch mini
plug. Your local RadioShack store carries a wide selection of batter ies and speakers.
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CONTENTS
Preparation ........................................................... 5
Connecting Power ................. .. ............ ........... 5
Using Batteries ........................................ 5
Using AC Power ...................................... 7
Using Vehicle Battery Power ................... 9
Connecting the Headphon es or Speakers .... 12
Listening Safely ..................................... 13
Traffic Safety ......................................... 13
Using the Belt Clip ........................................ 14
Radio Operation ................................................. 15
Cassette Operation ............................................ 17
Playing a Cassette Tape ............................... 17
Tape T ips ........... .......... .......... .. .......... .......... . 21
Tape Quality ................... .. .......... .......... . 21
Restoring Tap e Tension and
Sound Quality .................... .................... 21
Maintenance ....................................................... 23
Cleaning the Tape-Handling Parts ................ 24
FCC Information ........................................... 26
Specifications .................................................... 27
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PREPARATION
CONNECTING POWER
Using Batteries
To power the SCP-90 with batteries, you need two
AA batteries (not supplied). We recommend alkaline
batteries, such as RadioShack Cat. No. 23-557.
Follow these steps to install batteries.
1. Pull up the black
cassette compartment latch and pull
open the cassette
compartment door.
2. Press the battery
compartment
cover’s tab in the
direction of the
arrow and lift off
the cover.
Illust.
Illust.
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3. Install the batteries over the ribbon, 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 batteries, different
types of batteries (standard, alkaline, or
rechargeable), or rechargeable batteries of
different capacities.
4. Replace the battery compartment cover, then
close the cassette compartment door and latch.
If the SCP-90 does not operate properly or if the
sound becomes weak or distorted, replace the batteries.
Cautions:
• Always dispose of old batteries promptly and
properly.
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• Never leave dead, old, or weak batteries in the
SCP-90. Batteries can leak chemicals that can
corrode or damage elect ronic circuits.
• If you do not plan to power the SCP-90 with bat-
teries for several days, or if you plan to power it
using only an AC or DC adap ter, remove the batteries to protect the SCP-90 from possible battery leakage.
Using AC Power
To power the SCP-90 with standard AC power, you
need an optional AC adapter, such as RadioShack
Cat. No. 273-1654.
Cautions:
• The recommended AC adapter supplies 3 volts
and delivers at least 250 milliamps. Its center tip
is set to negative, and its barrel plug correctly fits
the SCP-90’s
does not meet these specifications could damage the SCP-90 or the adapter.
DC 3V
jack. Using an adapter that
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• Always connect the adapter to the SCP-90’s
3V
jack before you connect it to the AC outlet.
DC
Then disconnect the adapter from the AC outlet
before disconnect ing it from the SCP-90.
Follow these steps to power the SCP-90 from a standard AC outlet.
1. Set the adapter’s voltage switch to 3V.
2. Put the adapter’s
3.4 mm outer diameter/1.3 mm inner
diameter barrel
plug onto the
Add
Illust.
adapter’s cord so it
reads –TIP.
3. Pull out the attached rubber plug from the SCP-
DC 3V
90’s
jack.
4. Insert the adapter’s
barrel plug into the
SCP-90’s
DC 3V
Illust.
jack.
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5. Plug the adapter
into a standard AC
outlet.
Illust.
Notes:
• Internal batteries (if installed) automatically disconnect when you plug the AC adapter into the
SCP-90.
• Disconnect the adapter and reinsert the jack’s
rubber plug when you are not using the SCP-90.
Using Vehicle B attery Power
To power the SCP-90 from your vehicle’s cigarettelighter socket, you need an optional DC adapter,
such as RadioShack Cat. No. 270-1560.
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Cautions:
• The recommended DC adapter supplies 3 volts
and delivers at least 250 milliamps. Its center tip
is set to negat ive, and its ba rrel plug corre ctly fits
the SCP-90’s
jack. Using an adapter that
DC 3V
does not meet these specifications could damage the SCP-90 or the adapter.
• Always connect the adapter to the SCP-90’s
jack before you connect it to the cigarette-
3V
DC
lighter socket. Then disconnect the adapter from
the cigarette-lighter socket before disconnecting
it from the SCP-90.
Follow these steps to power the SCP-90 from your
vehicle’s ci garette-lighter socket.
Illust.
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1. Set the adapter’s voltag e switch to 3V.
2. Insert the adapter’s 3.4 mm outer diameter/1.3
mm inner diameter barrel plug into the adapter’s
cord so it reads –TIP.
3. Pull out the attached rubber plug from the SCP-
DC 3V
90’s
jack.
4. Insert th e adapter’s barrel plug i nto the SCP-90’s
DC 3V
jack.
5. Plug the adapter into the vehicle’s cigarettelighter socket.
Notes:
• If the SCP-90 does not operate properly when
you use DC power, be sure the cigarette-lighter
socket is clean and that the adapter’s plug is
pushed all the way into the socket.
• Internal batteries (if installed) automatically disconnect when you plug the adapter into the
3V
jack.
• Disconnect the adapter and reinsert the jack’s
rubber plug when you are not using the SCP-90.
DC
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CONNECTING THE
HEADPHONES OR SPEAKERS
To listen to your SCP-90, connect the supplied in-ear
sports headphones (or other headphones) or a pair
of amplified speakers (not supplied) with a
mini plug.
Pull out the attached rubber plug from the SCP-90’s
PHONES
ers’
jack, the n plug in the headphones’ or speak-
1
/8-inch plug.
Illust.
When you are not using your SCP-90 and headphones or speakers are disconnected, put the rubber
plug back into the
PHONES
jack to protect against
moisture and dust.
1
/8-inch
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Listening Safely
To protect your hearin g, foll ow these gui delin es when
you use the headphones.
• 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 disco mfor t
might still damage your hearing.
Traffic Safety
Do not wear headphones while operati ng a m otor vehicle or riding a bicycle. This can cause a traffic hazard and can be illegal in some ar eas.
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Even though some headphones are designed to let
you hear some outside sounds when listening at normal volume levels, they still can present a traffic hazard.
USING THE BELT CLIP
For hands-free carrying, slide the belt clip over your
belt.
To r em ove t he bel t c li p, us e a P hil li ps s cr ew dr iv er to
loosen the screw holding th e clip. Then li ft off the c lip.
Illust.
To replace the belt clip, position it as shown, then replace and tighten the screw.
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RADIO OPERA TION
Important:
phones or speakers to th e SCP-90.
1. Set
Make sure you have connected head-
RADIO OFF/TAPE/FM ST/AM
to turn on the radio.
Illust.
2. Adjust
3. Turn
VOLUME
TUNING
to the desired listening level.
to select the desired station.
Illust.
FM ST or AM
to
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Note: The AM antenna is built-in. Rotate the
cassette playe r to improve AM reception. For the
best FM reception, fully extend the headphones’
or speakers’ co rd.
4. Set
BASS BOOST
effect. Set it to
to ON for an enhanced bass
for normal bass sound.
OFF
Add
Illust.
5. Set
16
RADIO OFF/TAPE/FM ST/AM
to turn off the radio.
TAP E
to
RADIO OFF/
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CASSETTE OPERATION
PLAYING A CASSETTE TAPE
1. Take up any slack in the tape by turning the cassette’s hub with a pencil. Do not touch the
exposed tape.
Illust.
2. Pull up the cassette compartment latch and pull
open the door.
Illust.
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3. With its open edge facing up and the full reel to
the left, insert the cassette tape into the cassette
guide.
Illust.
4. Close the door and the latch.
5. Set
TAP E
RADIO OFF/TAPE/FM ST/AM
.
RADIO OFF/
to
Add
Illust.
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6. Press
7. Adjust
PLAY
to start play.
VOLUME
Add
Illust.
to the desired listening level.
Add
Illust.
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BASS BOOST
8. Set
effect. Set it to
to ON for an enhanced bass
OFF
for normal bass sound.
Add
Illust.
STOP
9. To stop playback , press
.
Add
Illust.
Notes:
• The SCP-90 automatically stops when the tape
reaches the end of that side during playback.
• To advance the tape quickly, press
F.FWD
button locks down, and the tape fast forwards
until you press
tape over and press
STOP
. To rewind the tape, turn th e
F.FWD
.
. The
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TAPE TIPS
T a pe Quality
For the best performance, use only regular length
(60- or 90-minute) cassette tapes. We do not recommend long-playing cassette tapes, such as C-120s,
because they are extremely thin and can easily tangle in the playback mechanism.
Restoring Tape Tension and Sound
Quality
After you play a cassette tape several times, the tape
might become tightly wound on the reels. This can
cause playback sound quality to deteriorate.
To restore the sound quality, fast-forward the tape
from the beginnin g to t he end of one side, then turn it
over and completely fast-forward the other side.
Then loosen the tape reels by gently tapping each
side of the cassette’s outer shell on a flat surface.
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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.
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MAINTENANCE
Your Optimus SCP-90 AM•FM Stereo Casset te Player is an example of superior design and craftsmanship. The following suggestions will help you care for
the SCP-90 so you can enjoy it for years.
• Keep the SCP-90 dry. If it gets wet, wipe it dry.
• Use and store the SCP-90 only in normal tem-
perature environm ents.
• Handle the SCP-90 gently and carefully. Don’t
drop it.
• Keep the SCP-90 away from dust and dirt.
• Occasionally wipe the SCP-90 with a damp c loth
to keep it looking new.
Modifying or tampering with the SCP-90’s internal
components can cause a malfunction and might invalidate its warr anty and void your FCC authori zation
to operate it. If your SCP-90 is not performing as it
should, take it to your local RadioShack store for assistance.
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CLEANING THE TAPE-HANDLING
PARTS
Dirt, dust, or particles of the tape’s coating can accumulate on the tape head and other parts that the tape
touches. This can reduce the SCP-90’s perfor ma nce.
Follow these steps to clean the tape-handling parts
after about every 20 hours of tape player operation.
1. Open the cassette compartment latch and door.
2. Remove the batteries and disconnect any other
power source.
3. Press
PLAY
to expose the tape-handling parts.
Illust.
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4. Use a cotton swab dipped in denatured alcohol
or tape head cleaning solution to clean the playback head, pinch roller, capstan and tape
guides.
Illust.
5. When you finish cleaning, press
batteries (if necessary)
,
and close the compart-
STOP
ment door and latch.
Note:
Your local RadioShack store sells a complete
line of cassette deck cleaning supplies.
, reinstall
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FCC INFORMATION
Your SCP-90 might cause TV or radio interference
even when it is operating properly. To determine
whether your SCP-90 is causing the interference,
turn off your SCP-90. If the interference goes away,
your SCP-90 is causing it. Try to eliminate the interference by:
• Moving your SCP-90 away from the recei ver
• Connecting your SCP-90 to an outlet that is on a
different electrical circui t from the receiver
• Contacting your local RadioShack store for help
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SPECIFICATIONS
GENERAL
Power Requirements ............................... 3 Volts DC
Two AA Batteri es (Cat. No. 23-557),
3-Volt AC Adapter (Cat. No. 273-1654), or
3-Volt DC Adapter (Cat. No. 270-1560)
15
Dimensions (HWD) ...............1
/16
¥ 5 ¥ 4
(48 ¥ 127 ¥ 109 mm)
Weight (Without Batteries) ............................. 9.2 oz
RADIO
Frequency Range........................... FM 88–108 MHz
AM 530–1710 kHz
CASSETTE PLAYER
Tape System ............ .. .......... .......... .. 4-Track, Stereo
Tape Spee d ............. .. ... .........1
7
/8 Inches per Second
Wow and Flutter .............. .. ...................... ....... 0.35%
5
/16
Inches
(260 g)
Specifications are typical; individual units might vary.
Specifications are subject to change and improvement without notice.
27
g
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This product is warranted by RadioShack against manufacturing defects in material
Limited Ninety-Day Warranty
and workmanship 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 LIABILITY OR RESPONSIBILITY TO CUSTOMER OR ANY
OTHER PERSON OR ENTITY WITH RESPECT 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 WARRANTY,
INCLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT
OR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
EVEN IF RadioShack HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES.
Some states do not allow the limitations on how long an implied warranty lasts or
the exclusion of incidental 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, unless 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
property 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 e x cess vo l tage 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
A Division of Tandy Corporation
3A8 Printed in Hong Kon
Worth, TX 76102
We Service What We Sell
RadioShack
Fort Worth, Texas 76102
3/97
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