PRO-23  (200-0504)     Using Other Power Sources      Faxback Doc. # 6492

IMPORTANT INFORMATION ABOUT THE EXTERNAL POWER JACKS

The scanner has two external power jacks - POWER and CHARGE.  It is
important that you understand the purpose of each jack before you connect
any adapter to the scanner.

The POWER jack powers the scanner and disconnects the internal batteries.
You can use this jack with an external power source (AC or DC adapter)
regardless of the type of batteries you install.

The CHARGE jack supplies power to operate the scanner and also charges
the internal batteries.  Use the CHARGE jack only when you install
rechargeable nickel-cadmium batteries.

Warning:  Never use the CHARGE jack with non-rechargeable batteries.  If
          you try to recharge non-rechargeable batteries, they become
          very hot and could explode.

USING AN AC POWER SOURCE

To power the scanner from AC power, you need an AC adapter such as Radio
Shack Cat. No. 20-188.  Plug the adapter's barrel plug into the scanner's
POWER jack.  Then plug the adapter's power module into a standard AC
outlet.

Caution:  You must use an AC adapter that supplies 9 volts and delivers
          at least  300 milliamps.  Its center tip must be set to
          negative, and its plug must correctly fit the scanner's DC 9V
          jack.  The recommended adapter meets these specifications.
          Using an adapter that does not meet the specifications could
          seriously damage the scanner or the adapter.

When you finish using the AC adapter, disconnect it from the AC outlet
first.  Then disconnect it from the scanner.

Note:  If you have installed rechargeable nickel-cadmium batteries in the
       scanner, you can connect the AC adapter to the CHARGE jack.  This
       powers the scanner and recharges the batteries at the same time
       See "Charging Nickel-Cadmium Batteries."

USING A DC ADAPTER

Note:  Mobile use of a scanner may be unlawful or require a permit in
       some areas.  Check the laws in your area.

You can power the scanner from your vehicle's battery power, provided the
vehicle  has a 12-volt, negative ground electrical system.  To do so, you
need a Radio Shack DC Universal Adapter, Cat. No. 270-1560A.

Cautions:  You must use a DC adapter that supplies (regulated 9-volt power
           and delivers at least 300 milliamps.  Its center tip must be set
           to negative, and its plug must correctly fit the scanner's DC
           9-volt jack.  Using an adapter that does not meet these
           specifications could seriously damage your scanner or the adapter.

           To protect your vehicle's electrical system, always plug the
           adapter into the scanner before you plug it into your vehicle's
           cigarette-lighter socket.  Always unplug the adapter from the
           vehicle's cigarette-lighter socket before you unplug it from the
           scanner.

1.  Connect the DC adapter's orange barrel-plug to the adapter's cable,
    with the tip set to - (negative).

2.  Set the adapters voltage switch to 9V.

3.  Insert the barrel plug into the scanner's DC 9V POWER jack.

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

When you finish using the DC adapter, disconnect it from the cigarette-
lighter first.  Then disconnect it from the scanner.

Note:  If the scanner does not operate properly when you use a DC
       adapter, unplug the adapter from the lighter socket and clean the
       socket to remove ashes and other debris.

CHARGING NICKEL-CADMIUM BATTERIES

The scanner has a built-in charging circuit that lets you recharge
nickel-cadmium batteries while they are in the scanner.  To charge the
batteries, simply connect an AC adapter or a DC Universal Adapter to the
scanner's CHARGE jack.

Warning:  Do not connect either adapter to the scanner's CHARGE jack if
          you have installed non-rechargeable batteries (standard,
          extra-life, or alkaline).  Non-rechargeable batteries become
          hot and can even explode if you try to recharge them.

It takes about 16 to 18 hours to recharge batteries that are fully
discharged.  You can operate the scanner while recharging nickel-cadmium
batteries, but the charging time is lengthened.

At the end of a rechargeable battery's useful life, it 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.

Note:  Nickel-cadmium batteries last longer and deliver more power if you
       occasionally let them fully discharge.  To do this, simply use the
       scanner until the low battery indicator appears on the display.
       Then fully charge the batteries.

(BR/smc-05/16/94)