MPA-46  (320-2042)          Care and Maintenance       Faxback Doc. # 7712

The Radio Shack MPA-46 PA Amplifier is an example of superior design and
craftsmanship.  The following suggestions will help you care for the
amplifier so you can enjoy it for years.

Keep the amplifier dry.  If it gets wet, wipe it dry immediately.
Liquids might contain minerals that can corrode electronic circuits.

Use and store the amplifier only in normal temperature environments, and
avoid sudden temperature changes.  Temperature extremes can shorten the
life of electronic devices and distort or melt plastic parts.

Handle the amplifier gently and carefully.  Dropping it can damage the
circuit boards and can cause the amplifier to work improperly.

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

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

Modifying or tampering with the amplifier's internal components can cause
a malfunction and might invalidate the warranty.  If the amplifier is not
performing as it should, take it to your local Radio Shack store for
assistance.

REPLACING THE FUSE

The fuse (located on the back of the amplifier) protects your amplifier
from power (voltage or current) surges.  If the power indicator does not
light when you press POWER, you might have to replace the fuse.

Caution:  Use only an identical 5 x 20 mm, fast-acting, 2-amp, 250-volt
          fuse (such as Cat. No. 270-1052).

Follow these steps to replace the amplifier's fuse.

1.  Unplug the amplifier's power cord.

2.  Using a flatblade screwdriver, push and turn the fuse holder's cap
    counterclockwise until the fuse holder pops out.

3.  Remove the fuse holder and replace the fuse.

4.  Using a flatblade screwdriver, push and turn the fuse holder's cap
    fully clockwise to replace it.

(br/all-9/29/94)