PRO-46  (200-0305)       Using Other Power Sources     Faxback Doc. # 3594

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 Radio Shack's AC adapter,
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.

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 Radio Shack's DC Universal Adapter, Cat. No. 270-1560A.

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 (270-1560) 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 10 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.

Charging Tips

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.

(ALL-12/13/94)