PRO-51 200-Channel Direct Entry Programmable Scanner
(200-0308A)                Alternate Power            Faxback Doc. # 39016

Using Other Power Sources

Important Information About The External Power Jacks

The scanner has two external power jacks - POWER and CHARGER.  It is impor-
tant 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 with the center
          tip set to negative.  It must deliver at least 300 milliamps, and
          its plug must properly fit the scanner's POWER jack.  Using an
          adapter that does not meet these specifications could 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 DC adapter such as Radio Shack DC Universal Adapter,
       Cat. No. 270-1560A.

CAUTIONS:  You must use a DC adapter that supplies 9 volts with the center
           tip set to negative. It must deliver at least 300 milliamps, and
           its plug must properly fit the receiver's POWER jack.  Using an
           adapter that does not meet these specifications could damage the
           receiver or the adapter.

           Your vehicle must have a 12-volt DC, negative-ground electrical
           system.

           To protect your vehicle's electrical system, be sure the adapter
           is connected to the cigarette-lighter socket only when it is also
           connected to the receiver.

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

2.  Set the adapter's voltage switch to 9V.

3.  Insert the barrel plug into the scanner's 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 (Cat. No. 23-125) while they are in the scanner.  To
charge the batteries, simply connect an AC adapter (Cat. No. 20-188) or a
DC Universal Adapter (Cat. No. 270-1560A) 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.

Fully discharged batteries take about 10 to 18 hours to recharge.  You can
operate the scanner while recharging nickel-cadmium battery.  At the end of
the 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.

Charging Tip

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


(EB 4/21/97)

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