Optimus CD-3840 User Manual
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Cat. No. 42-5098
OWNER’S MANUAL
Please read before using this equipment.
CD-3840
Portable CD Player
Super Anti-Shock and PLL AM/FM Tuner
with 40 Second
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FEATURES
Your Optimus Portable CD Pl ayer uses
the latest digital audio technology to
give you the clea n, crisp soun d of compact discs. You can connect the CD
player to amplified speakers or your
home or car audio s y stem, or connect a
pair of stereo he adphones for portable,
private listening.
Important:
You need a pair of stereo
headphones, amplified speakers, or a
home audio or car s ter eo sys te m t o u se
your CD player. Your local RadioShack
store carries a complete line of these
items.
The CD player's features include:
Super Anti-Shock System (SAS)
—
rapidly scans 40 seconds of data from
the CD and stores it in memory for uninterrupted play with no sound sk ip even
when the CD player is exposed to
shocks or vibration. T his make s this CD
player excellent for use in your vehicle.
AM/FM Radio with 20-Station Memo-
— lets you store up to 20 radio sta-
ry
tions (15 FM and 5 AM ) in memory, so
you can quickly tune to a stored station.
Backlit Display
— lets you see t he sy s-
tem’s status, even in the dark.
E-Bass Syst em
— creates a fuller bass
sound.
Programmable Play
— lets you program and play up to 22 tracks in any sequence you choose.
Repeat Play
— lets you automatically
repeat a single track, a programmed sequence, or an entire CD.
Intro Scan
— helps you locate a desired track by aut omatically playing the
first 10 seconds of each track on the
CD.
Random Play
— lets you play the
tracks on a CD in random order.
Eight-Times Oversampling w ith Digital Filtering
— improves the CD’s
sound by multiplyi ng the standard 44.1
kHz sample rate by 8 and using a digital
filter to reduce or eliminate distortion.
1-Bit DAC
— uses the latest in digital to-analog conversion circuitry to accurately reproduce all sound levels with
virtually no distortion.
Built-In Battery Charger
— automatically charges rec hargeable batteries inside the player when you connect an
AC or DC adapter.
Automatic Search Music System
(ASMS)
— lets you quickly locate and
play any track on a CD.
©
1999 Tandy Corporation.
Optimus, RadioShack, and Adaptaplug are registered trademarks used by Tandy Corporation.
All Rights Reserved.
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Audible Search and Skip Function
—
helps you locate a particular section of a
track by rapidly playing the CD in either
direction.
— lets you temporarily stop play.
Pause
— helps prevent accidentally
Hold
changing the CD player's settings and
preserves battery life by locking most
controls when you turn off the CD player.
Auto Power Off
— automatically turns
the CD player off when you stop pla y or
30 seconds after the CD finishes playing.
Three Power Sources
— let you power
your CD player from two AA batteries
(not supplied), standard AC power, or
vehicle battery power (using an optional
AC or DC adapter).
3-Inch CD Compatible
— lets you play
3-inch CDs.
CDs that can be played on this CD player have this mark on them:
The CD player’s advanced technology
makes it simple to operate. But, be sure
you read this Owner’s Manual completely so you can tak e adv antage o f all
its advanced features.
This CD player is made and tested to
meet exacting safety standards. It
meets FCC requiremen ts and complies
with safety performance standards of
the U.S. Department of Health and Human Services.
Warnings:
• This CD pl ay er e mpl o ys a l ase r li gh t
beam. Only a quali fied service person should remove the cover or
attempt to service this device, due
to possible eye injury.
Automatic Tuning
— searches forward
or backward to the next strong station in
the selected band so you can quickly
find new stations.
Memory Tuning
— lets you select a
preset AM or FM station.
Stereo/Mono Switch
— lets you sele ct
mono or stereo mode whe n listening in
the FM band.
• The use of controls, adjustments, or
procedures other than those specified herein might result in hazardous radiation exposure.
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FCC INFORMATION
This equipment compli es with the limits
for a Class B digital device as specified
in Part 15 of
provide reasonable protection against
radio and TV interference in a residential area. However, your CD player
might cause TV or radio interference
even when it is operating properly. To
eliminate interference, you can try one
or more of the following corr ective mea sures:
• Increase the distance between the
CD player and the radio or TV.
• Use outlets on different electrical
circuits for the CD player and the
radio or TV.
FCC Rules
. These limits
Consult your local RadioShack store if
the problem still exists.
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CONTENTS
Powering the CD PLayer ...................................................................................... 6
Using Batteries ................................................................................................. 6
Charging Rechargeable Batteries ............................................................. 6
Using AC Power ............................................................................................... 7
Using Vehicle Battery Power ............................................................................ 8
Making the Connections ...................................................................................... 9
Connecting Earphones or Headphones ........................................................... 9
Listening Safely ......................................................................................... 9
Traffic Safety .............................................................................................. 9
Operation ................................ ............. ............. ............. ............. ............. ............ 10
Listening to the Radio .................................................................................... 10
Storing a Radio Station in Memory ........................................................... 11
Playing a CD ................................................................................................... 11
Super Anti-Shock System (SAS) ............................................................. 12
Skip and Audible Search ......................................................................... 12
Intro Scan ................... ....... ...... ....... ...... ............................................. ...... 13
Repeat Play ............................................................................................. 13
Random Play ........................................................................................... 13
Programmed Play .................................................................................... 14
Troubleshooting ................................................................................................. 15
Care and Maintenance ....................................................................................... 17
CD Care Tips ................................................................................................. 18
Specifications ..................................................................................................... 19
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POWERING THE CD PLAYER
You can power your CD player from any
of these sources:
• two AA alkaline batteries (not supplied)
• two rechargeable AA nickel-cadmium batteries (not supplied)
• standard AC power using an AC
adapter (not supplied)
• vehicle battery power using a DC
adapter (not supplied)
Connecting an AC or DC ad apter
Note:
to the CD player with non-rechar geable
batteries installed disconnects the
batteries.
USING BATTERIES
You can power your CD player from two
AA alkaline batteries or two AA rechargeable nickel-cadmium batteries.
Both types of batt eries are available at
your local RadioShack store.
Cautions
• Use only fresh batteries of the
• Do not mix old and new batteries,
:
required size and recommended
type.
different types of batteries (standard, alkaline, or rechargeable), or
rechargeable batteries of different
capacities.
1. Press down and slide the battery
compartment cover in the direction
of the arrow and lift it off.
2. Place two AA batteries i n the compartment as indicated by the polarity symbols (+ and –) marked inside.
3. Replace the cover.
When flashes or the CD player
stops operating properly, replace the
batteries.
Warning:
promptly and properly. Do not burn or
bury them.
Caution:
CD player for a month or more, remove
the batteries. Batte ries can leak chemi cals that can destroy electronic parts.
BATT
Dispose of old batteries
If you do not plan to use the
Charging Rechargeable
Batteries
This CD player can fu lly ch ar ge the r ec ommended rechargeable nickel-cadmium batteries in about 17 hours. You can
play a CD while charging the nickelcadmium batteries; however, this will
cause the batteries to charge more
slowly.
Follow these steps to inst all the batteries.
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