PRO-37 Programmable Scanner
(200-0138) Preparation Faxback Doc. # 46273
Power Sources
You can power your scanner from any of the following three sources:
Internal batteries
A standard AC outlet (using an optional AC adapter)
Your vehicle's battery (using an optional DC adapter)
Using Batteries
You can operate your scanner from six AA batteries. For longest operation
and best performance, we recommend alkaline batteries (Cat. No. 23-552).
Or, you can use rechargeable nickel-cadmium batteries (Cat. No. 23-125).
WARNING: The scanner has a built-in circuit that lets you recharge nickel
cadmium batteries inside the scanner. However, you must never
use this circuit when you have installed non-rechargeable
batteries in the scanner. Be sure to read "Important information
about External Adapters" and "Charging Nickel-Cadmium Batteries."
BATT flashes on the display and a beep sounds every 3 seconds when the
batteries are low. When this happens replace all six batteries immediately
(or recharge the nickel-cadmium batteries).
1. Remove the battery compartment cover by pressing down on the arrow and
sliding the cover in the direction of the arrow.
2. Remove the battery holder from the battery compartment and remove any
old batteries. Then, install six AA batteries in the holder, observing
the polarity (+ and -) as marked on the battery holder.
3. Place the battery holder in the compartment so that the holder's metal
contacts line up with the metal contacts in the battery compartment.
4. Replace the battery compartment cover.
Important Information about External Adapters
The scanner has two external power jacks - PWR and CHG. It is important
that you understand the purpose of each jack before you connect any
adapter to the scanner. Improper use of the jacks can damage the scanner
and the power adapter.
The PWR jack powers the scanner and disconnects the internal batteries.
You can use this jack with an external power source regardless of the type
of batteries installed.
The CHG. jack supplies power to operate the scanner and also applies power
to the internal batteries to charge them. Use the CHG. jack only when you
have installed rechargeable nickel-cadmium batteries.
WARNING: Never use the CHG. jack with non-rechargeable batteries. If
you try to recharge non-rechargeable batteries, they become very
hot and could even explode.
Using an AC Power Source
To power the scanner from AC power, you need RadioShack's 9-volt, 300 mA
AC adapter (Cat. No. 273-1455). Use of an adapter with different ratings
could damage your scanner or the adapter.
1. Plug the adapter's plug into the scanner's PWR jack.
Note: If you have installed rechargeable nickel-cadmium batteries in
your scanner, you can connect the AC adapter to the CHG. jack.
This powers the scanner and recharges the batteries at the same
time. See "Charging Nickel-Cadmium Batteries."
2. Plug the adapter power module into a standard AC outlet.
3. When you finish using the AC adapter disconnect it from the AC outlet.
Then, disconnect it from the PWR jack.
Using a DC Adapter
You can power the scanner from your vehicle's cigarette lighter socket,
provided the vehicle has a 12-volt, negative ground electrical system.
To do so, you need RadioShack's Universal DC Adapter (Cat. No. 270-1560)
or an adapter rated at 9V, minimum 300 mA.
Note: In some areas, mobile use of a scanner is unlawful or requires a
permit. Check the laws in your area.
1. Connect the adapter's green barrel plug to the adapter's power cable
with the tip set to NEG. (negative).
2. Set the adapter's voltage switch to 9V.
3. Insert the adapter's barrel plug into the scanner's PWR jack.
Note: If you have installed rechargeable batteries in the scanner, you
can connect the DC adapter to the CHG. jack. This powers the
scanner and recharges the nickel-cadmium batteries at the same
time. See "Charging Nickel-Cadmium Batteries."
4. Plug the other end of the adapter into your vehicle's cigarette
lighter socket.
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.
5. When you finish using the DC adapter, disconnect it from the cigarette
lighter. Then, disconnect it from the scanner.
Charging Nickel-Cadmium Batteries
Your scanner has a built-in circuit that recharges nickel-cadmium
batteries. To charge the batteries, simply connect an AC or DC adapter to
the CHG. jack as explained in "Power Sources."
WARNING: Do not connect either adapter to the CHG. jack if you have not
installed rechargeable batteries. Non-rechargeable batteries can
become hot and even explode if you try to recharge them.
It takes 10 to 18 hours to recharge batteries that are fully discharged.
You can operate the scanner while you charge the batteries, but the
charging time is longer.
Charging Hints: Nickel-cadmium batteries deliver more power if you
occasionally let them discharge completely. To do this,
use the scanner until reception becomes poor. Then, fully
charge the batteries. If you do not do this occasionally,
they can temporarily lose the ability to deliver full
power.
To prevent permanent nickel-cadmium battery power loss,
never charge your batteries in an area where the
temperature is above about 80 degrees Fahrenheit. Also,
if you use an external charger, do not overcharge the
batteries.
If you plan to use rechargeable batteries, do not use any
adapter other than those specified in "Power Sources."
While adapters of the same voltage rating and at least
the minimum current rating could power the scanner, other
adapters might not work properly with the charging
circuit in your scanner, and could permanently damage the
batteries or your scanner.
Connecting The Antenna
Attach the flexible antenna to the ANT (antenna) jack on top of the
scanner. Slip the slot in the antenna's connector over the protrusion on
the jack.
Then, press down and rotate the base of the antenna until it locks into
place.
The antenna jack on your scanner makes it easy to use your scanner with a
variety of antennas. You can remove the supplied antenna, if you want,
and attach a different one, such as an external mobile antenna, telescopic
antenna, or outdoor base antenna. RadioShack stores sell the antenna
connector adapters that let you use these antennas.
Use coaxial cable to connect an outdoor antenna. Always use 50-Ohm coaxial
cable. For lengths over 50 feet, use RG-8 low-loss dielectric coaxial
cable.
WARNING: When installing or removing an outdoor antenna, use extreme
caution. If the antenna starts to fall, let it go! It could
contact overhead power lines. If the antenna touches the power
line, contact with the antenna, mast, cable, or guy wires can
cause electrocution and death! Call the power company to remove
the antenna. Do not attempt to do so yourself.
Connecting An Earphone
For private listening, plug an earphone into the EAR jack on top of your
scanner. This automatically disconnects the speaker. We recommend
RadioShack's earphone Cat. No. 33-175. In a noisy environment, mono
headphones (Cat. No. 20-210) make listening easier.
Always set volume to its minimum position before you plug in earphones or
headphones. Then, adjust the volume to a comfortable listening level.
WARNING: Do not listen at extremely high volume levels, especially when
using an earphone. Extended high-volume listening can lead to
permanent hearing loss.
Connecting An Extension Speaker
In a noisy area, an extension speaker such as RadioShack Cat. No. 21-549,
positioned in the right place, might provide more comfortable listening.
Plug the speaker cable's 1/8-inch mini-plug into the scanner's EAR jack.
(br/EB 1/14/98)
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