Two-Zone Remote Keypad Burglar Alarm Control Center
(490-0451)                 Care and Maintenance       Faxback Doc. # 33428

CARE AND MAINTENANCE

Your Radio Shack Two-Zone Remote Keypad Burglar Alarm Control Center is an
example of superior design and craftsmanship.  The following suggestions
will help you care for the alarm center and keypad so you can enjoy them
for years.

Keep the alarm center and keypad dry.  If either gets wet, wipe them dry
immediately. Liquids might contain minerals that can corrode the electronic
circuits.

Use and store the alarm center and keypad only in normal temperature
environments.  Temperature extremes can shorten the life of electronic
devices, damage batteries, and distort or melt plastic parts.

Handle the alarm center and keypad gently and carefully.  Dropping them can
damage circuit boards and cases and can cause the alarm system to work
improperly.

Keep the alarm center and keypad away from dust and dirt, which can cause
premature wear of parts.

Wipe the alarm center and keypad with a damp cloth occasionally to keep
them looking new.  Do not use harsh chemicals, cleaning solvents, or strong
detergents to clean them.

Modifying or tampering with the alarm center's or keypad's components,
other than as described in this Owner's Manual, can cause a malfunction and
might invalidate its warranty.  If your alarm center and/or keypad are not
performing as they should, take them to your local Radio Shack store for
assistance.

REPLACING THE FUSE

If the alarm center does not operate, you might need to replace the fuse
with a 3-amp fast-blow fuse such as the supplied spare fuse (Cat. No.
270-1009).

WARNING:  Before you begin, unplug the AC adapter and disconnect the backup
          batteries.

Follow these steps to replace the fuse.

CAUTION:  Fuses can fail for many reasons, including short circuits, power
          surges, and improper installation.  Check your installation for
          short circuits or improper installation and correct any problems
          you find.  Then, if the spare fuse fails after you install it,
          contact your local Radio Shack store.

1.  Use a flathead screwdriver to remove the screw on the side of the alarm
    center's cover, then open the cover.

2.  Pull the red ribbon inside the cover.  The fuse pops out.

3.  If the fuse is blown, replace it.

CAUTION:  Make sure you replace the fuse only with another fuse of the same
          type and rating.

4.  Wrap the red ribbon around the new fuse, then insert the fuse into the
    fuse holder.

5.  Close the alarm center's cover and secure the cover screw.

6.  Reconnect the battery and the AC adapter.

RESETTING THE AC ADAPTER's CIRCUIT BREAKER

The AC adapter has a circuit breaker to protect itself from an overload. If
an overload occurs, the pin labeled RESET pops out, the AC adapter stops
supplying power, and the AC POWER indicator inside the alarm center turns
off.

WARNING:  Before you reset the circuit breaker, unplug the AC adapter and
          disconnect the backup batteries.

CAUTION:  Circuit breakers can trip for many reasons, including short
          circuits, power surges, and improper installation.  Check your
          installation for a short circuit or improper installation and
          correct any problems you find.  Then reconnect the batteries and
          AC adapter and try to reset the AC adapter's circuit breaker.  If
          the circuit breaker fails to reset, contact your local Radio Shack store.

To reset the circuit breaker, press the pin labeled RESET back into the AC
adapter until it stops.


(SP/EB 5/25/96)