Optimus CD-3540 Owner's Manual
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Please read before using this equipment.
Portable Compact Disc Player
Cat. No. 42-5066
OWNER’S MANUAL
CD-3540
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FEATURES
Your Optimus CD-3540 Portable
Compact Disc Player uses the latest
digital audio technology to give you
the clean, crisp sound of compact
discs. You can connect the CD player to your home audio system, or
connect a pair of stereo earphones
for portable, private listening.
The CD player’s features include:
Eight-Times Oversampling with
Digital Filtering
— improves the
CD’s sound by multiplying the standard 44.1 kHz sample rate by eight
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 virtual ly no distortion.
BASS Switch
— lets you adjust the
frequency response to match the
type of music you listen to.
©
1996 Tandy Corporation.
Optimus is a registered trademark used by Tandy Corporation.
RadioShack is a trademark used by Tandy Corporation.
All Rights Reserved.
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Automatic Search Music System
(ASMS)
— lets you quickly locate
and play any track on a CD.
Audible Search
— helps you locate
a particular section of a track by rapidly playing the CD in either direction.
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, an entire
CD, randomly selected tracks, or a
programmed seque nce of tracks.
Pause
— lets you temporarily stop
playback of a CD and start it again
from the same point.
Intro Scan
— helps you locate a desired track by playing the first 10
seconds of each track on the CD.
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Auto Power On/Off — automatically turns power on when you load a
CD, so you can immediately begin
play; and turns power off when all
tracks finish, to save power.
Hold Function — prevents you from
accidentally changing the CD’s programmed play sequence, and preserves battery life by locking all
controls when you turn off the CD
player.
Three Power Sources — let you
power your CD player from AA batteries, standard AC power (using an
optional AC adapter), or your vehicle’s battery (using an optional DC
adapter).
Built-In Battery Charger — recharges the battery inside the CD
player when you use a special-order
nickel-cadmium battery pack.
5- and 3-Inch CD Compatible
Important: You need a pair of ste-
reo earphones or amplified speakers
or a home audio or car stereo system to use your CD-3540. Your local
RadioShack store carries a complete line of earphones, amplified
speakers, and audio systems.
The CD player’s advanced technology makes it simple to operate. Be
sure you read this Owner’s Manual
completely so you can take advantage of all the CD player’s advanced
features.
We recommend you record the CD
player’s serial number here. The
number is in the battery compartment.
Serial Number:
CDs that can be played on this player have this mark on them:
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FCC INFORMATION
This equipment complies with the
limits for a Class B digital device as
specified in Part 15 of
These limits provide reasonable protection against radio and TV interference in a residential area. However,
your equipment might cause TV or
radio interference even when it is
operating properly. To eliminate interference, you can try one or more
of the following corrective meas ures:
• 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.
• Consult your local RadioShack
store if the probl em sti ll exists.
FCC Rules
.
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CONTENTS
Choosing a Power Source ............... ........................................... ................ 7
Using Batteries ....................................................................................... 7
Installing Batteries ........................................................................... 7
Charging a Nickel-Cadmium Battery Pack ...................................... 8
Charging Tips .................................................................................. 9
Using AC Power ................................................................................... 10
Using Vehicle Battery Power ................................................................ 11
Conne ctions ..... .......... ............ ............ ............ .......... ............ ............ .......... 13
Connecting Earphones ....................................................... .. ................ 13
Listen in g S af e ly ......... ....... .. ............... ... .............. ... .............. ... ....... 13
Traffic Saf e ty ... ....... ... .. ....... ... .. ........ .. ....... ... .. ........ .. ............... .. ..... 14
Connecting Amplified Speakers ............ .. .................... .. ....................... 14
Connecting to a Home Audio System ... .............................. .. ................ 15
Connecting to an Auto Sound System .................................................. 15
Oper at io n ..... ....... ... .. ....... ... .............. ... ....... ... .. ....... ... .............. ... .............. ... 17
Playing a CD ......................................................................................... 17
Locking the Controls ............................................................................. 18
Paus e .... .. ............... .. ............... .. ........ .. ... ....... .. ... ....... ... ....... .. ... ....... .. ... 18
Bass Switch .......................................................................................... 19
Checking Remaining Time ................................................................... 19
Intro S ca n ... .. ........ .. .. ........ .. ............... .. ........ .. .. ........ .. ............... .. .......... 20
Automatic Search Music System (ASMS) ............................................ 20
Audib le S earch ..... ....... .. ............... .. ........ .. ... ....... .. ............... .. ............... 21
Programmed Play ................................................................................. 21
Checking, Adding To, Replacing, or Clearing the Programmed
Sequence ...................................................................................... 23
Repeat Play ....................... .. ......................................................... .. ...... 23
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Troubleshooting ......................................................................................... 25
Care and Maintenance ............................................................................... 26
Caring for the CD-3540 ....... .. ............ .. ........... ........................ .. .. ........... 26
CD Care Tips ........................................................................................ 28
Laser Safety .......................................................................................... 28
Specifications ............................................................................................. 29
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CHOOSING A POWER SOURCE
You can power your CD player from:
• Two AA alkaline batteries (not
supplied) or one special-order
rechargeable nickel-cadmium
battery pack (not supplied)
• Standard AC power, using an
AC adapter (not supplied)
• A vehicle’s battery power, using
a DC adapter (not supplied)
USING BATTERIES
You can power your CD player from
two AA alkaline batteries, such as
RadioShack Cat. No. 23-552, or one
special-order rechargeable nickelcadmium battery pack (RSU No.
11649035, available through your
local RadioShack store). The CD
player can recharge the specialorder nickel-cadmium battery pack
while it is installed.
Installing Batteries
1. Slide the battery compartment
cover in the direction of the
arrow, then lift it open.
2. Place two AA batteries or the
special-order nickel cadmium
battery pack in the compart m ent
as indicated by the polari ty symbols (+ and –) marked inside the
compartment.
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Cautions:
• Use only fresh batteries of
the required size and type.
• Never mix fresh and old batteries, alkaline and nickelcadmium batteries, or nickelcadmium batteries of different capaciti es.
• If you do not plan to use the
CD player for a month or
more, or you plan to power it
only from an optional AC or
DC adapter, remove and
store the batteries.
3. Close the battery compartment
cover.
When the batteries become weak,
flashes, then the CD player
automatically turns off. Replace alkaline batteries or recharge the
nickel-cadmium battery pack when
this happens.
Cautions:
• Always dispose of old batteries
promptly and properly.
• Never heat, disassemble, or
throw b at te ries into a fir e .
• Never leave dead, old, or weak
batteries in the CD player. Batteries can leak chemicals that
corrode or damage electronic
circuits.
Charging a NickelCadmiu m B attery Pac k
The nickel-cadmium battery pack
comes fully discharged. You can
charge the special-order battery
pack while it is in the battery compartment using an AC adapter (such
as Cat. No. 273-1664, not supplied)
or DC adapter (such as Cat. No.
273-1801, not supplied). See “Using
AC Power” on Page 10 and “Using
Vehicle Battery Power ” on Page11.
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Follow these steps to recharge the
nickel-cadmium battery pack while it
is in the battery compartment.
EXT DC 6V
1. Attach the 4.0 mm outer diameter/1.7 mm inner diameter barr el
plug to the adapter cord, matching the positive (+) on the plug
with TIP on the cord.
2. Set the adapter’s voltage switch
to 6V.
3. Insert the adapter’s barrel plug
into the CD player’s
EXT DC 6V
jack.
4. Plug the adapter’s other end
into a standard AC outlet .
5. When the nickel-cadmium battery pack fully charges, unplug
the AC adapter from the AC outlet, then disconnect the adapter
from the CD player.
Notes:
• It takes about 10 hours for the
CD-3540 to charge a fully discharged nickel-cadmium battery
pack.
• You can play a CD while
recharging the battery pack;
however, this could cause the
battery pack to recharge more
slowly.
Charging Tips
• Alw ay s keep the cha r ging termi nal clean. Use a cotton swab to
clean the terminal.
• Under normal usage conditions, the nickel-cadmium battery pack can be recharged
about 500 times.
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• Fully discharge the battery pack
occasionally by playing the CD
player until it no longer plays.
Then fully recharge the battery
pack. This helps restore the battery pack’s full charging capacity.
• Avoid charging the battery pack
in a hot environment (more than
113°F) as this can permanently
reduce the battery pack’ s charging capacity.
• Do not overcharge the battery
pack. Overcharging can
severely reduce a battery
pack’s useful life.
• Do not short-circuit the battery
pack’s terminals (+ and –).
Important: This portable CD player
is capable of using a rechargeable
nickel-cadmium battery pack. At the
end of its useful l ife, the battery pack
must be recycled or disposed of
properly. Contact your local, county,
or state hazardous waste management authorities for information on
recycling or disposal programs in
your area. Some options that might
be available are: municipal curb-side
collection, drop-off boxes at retailers, recycling collection centers, and
mail-back programs.
USING AC POWER
You can power the CD player from
standard AC power using an AC
adapter, such as Cat. No. 273-1664
(not supplied).
Cautions:
• You must use an AC adapter
that supplies 6 volts and delivers at least 550 milliamps. Its
center tip must be set to positive, and its plug must correctly
fit the CD player’s
jack. The recommended AC
adapter meets these specifications. Using an adapter that
does not meet these specifications could damage the CD
player or the adapter.
EXT DC 6V
10
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