Optimus Portable CD Player
(420-5073/5074)            Power Sources              Faxback Doc. # 40956


You can power your CD player from:

    Two AA batteries
    Standard AC power, using an AC adapter
    A vehicle's battery power, using a DC adapter

USING BATTERIES

You can power your CD player from battery power using:

Two AA alkaline batteries (such as RadioShack Cat. No. 23-552)

Two special AA rechargeable nickel-cadmium batteries (RSU No. 11672508,
available through your local RadioShack store).

You can charge these batteries while they are in the battery compartment
using an AC or DC adapter.

Two standard AA rechargeable nickel-cadmium batteries (such as Cat. No.
23-125).

Your CD player does not recharge standard AA rechargeable batteries inside
its battery compartment, but you can charge them with an external battery
charger (Cat. No. 23-133).

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.

All types of nickel-cadmium batteries can fully discharged.  Be sure to
fully charge the batteries before you use them the first time.

Charging Tips

    It takes about 7.5 hours to charge fully discharged nickel-cadmium
    batteries in the CD player while it is not being used to play CDs.

    When the nickel-cadmium batteries fully charge, unplug the adapter from
    the AC outlet or cigarette-lighter socket, then disconnect the adapter
    from the CD player.

    You can play a CD while recharging the special nickel-cadmium batteries;
    however, this will cause the batteries to recharge more slowly.

    Always keep the charging terminals on the rechargeable batteries clean.
    Use a cotton swab dipped in alcohol to clean the terminals.

    Under normal usage conditions, nickel-cadmium batteries can be
    recharged about 500 times.

    Fully discharge the batteries occasionally by playing the CD player
    until it no longer plays.  Then fully recharge the batteries.  This
    helps restore the batteries' full charging capacity.

    Avoid charging the batteries in a hot environment (above 113 F) as this
    can permanently reduce the batteries' charging capacity.

Caution:  Do not overcharge the batteries.  Overcharging can significantly
          reduce the batteries' useful life.

Important:  This CD player is capable of using rechargeable nickel-cadmium
            batteries.  At the end of the batteries' useful life, they 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 such as your local
            RadioShack store, recycling collection centers, and mail-back
            programs.

Installing Batteries

1.  Press down on the battery compartment cover and slide it away from the
    CD player, then lift the cover.

2.  Place two AA batteries in the compartment as indicated by the polarity
    symbols (+ and -) marked inside.

3.  Close the battery compartment cover.

Replace or recharge the batteries when the battery symbol flashes on the
display, the sound distorts, or the volume weakens.

Cautions:

    Always dispose of old batteries promptly and properly; do not burn or
    bury them.

    If you do not plan to use the CD player for a month or more, remove and
    store the batteries.

    Never leave dead, old, or weak batteries in the CD player.  Batteries
    can leak chemicals that corrode or damage electronic circuits.

USING AC POWER

You can power the CD player from a standard AC outlet using an AC adapter,
such as Cat. No. 273-1664.

Cautions:

    You must use an AC adapter that supplies 6 volts, and delivers at least
    400 milliamps (CD-3620) or 500 milliamps (CD-3640).  Its center tip
    must be set to positive, and its barrel plug must correctly fit the CD
    player's DC IN 6V jack.  The recommended adapter meets these
    specifications.  Using an adapter that does not meet these 
    specifications could damage the CD player or the adapter.

    When you finish using the AC adapter, disconnect it from the AC outlet
    first, then unplug it from the CD player.

    Battery power disconnects when you connect an AC adapter to the CD
    player unless you are using special rechargeable batteries.  If you plan
    to use the CD player with AC power for an extended period of time (8
    hours or more), remove the special nickel-cadmium batteries to prevent
    overcharging.

Follow these steps to use an AC adapter.

1.  Attach the 4.0 mm outer diameter/1.7 mm inner diameter barrel plug to
    the adapter cord, matching + 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 DC IN 6V jack.

4.  Plug the other end of the adapter into a standard AC outlet.

USING VEHICLE BATTERY POWER

You can power your CD player from your vehicle's battery using a DC adapter,
such as Cat. No. 273-1801.

Cautions:

    You must use a DC adapter that supplies 6 volts and delivers at least
    500 milliamps.  Its center tip must be set to positive, and its barrel
    plug must correctly fit the CD player's DC IN 6V jack.  The recommended
    adapter meets these specifications.  Using an adapter that does not
    meet these specifications can damage the CD player or the adapter.

    Disconnect the adapter from the cigarette-lighter socket when you are
    not using it, to prevent the vehicle's battery from being drained.

    Always disconnect the adapter from the cigarette-lighter socket before
    you unplug it from the CD player.

    If you park your vehicle in the sun, temperatures inside can easily
    reach levels that could damage your CD player and your CDs.  To prevent
    heat damage, avoid leaving your CD player or CDs in your vehicle.

    Battery power disconnects when you connect a DC adapter to the CD
    player unless you are using special rechargeable nickel-cadmium
    batteries.  If you plan to use the CD player with vehicle battery power
    for an extended period of time (8 hours or more), remove the special
    nickel-cadmium batteries to prevent overcharging.

Follow these steps to use your vehicle's battery power.

1.  Attach the 4.0 mm outer diameter/1.7 mm inner diameter barrel plug to
    the adapter cord, matching the + 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 DC IN 6V jack.

4.  Plug the other end of the adapter into your vehicle's cigarette-lighter
    socket.

(km-08/01/1997)