Accessories; Cooling Fan Options; Input Connectors Option; Filter Cleaning - Crown Micro-Tech 1200 Operation Manual

5 Advanced Features
and Options

5.2 Accessories

5.2.1 Cooling Fan Options

Every Micro-Tech amplifier has a built-in high-
velocity fan that provides optimum cooling.
Two optional replacement fan blades are avail-
able for special cooling requirments. Crown
part C 6594-3 is a quieter, low-velocity fan
blade that in many cases can provide adequate
cooling. Crown part C 6593-5 is a reverse air
flow fan blade which changes the direction of
the air flow in and out of the amplifier (not rec-
ommended for the Micro-Tech 2400).
Important: The optional replacement fan
blades should only be installed by a
qualified technician.

5.2.2 Input Connectors Option

The MT-BB is an accessory panel that
provides barrier-block input connectors.
An MT-BB accessory might be desirable
in applications requiring bare wire con-
nections. It can also be used to daisy-
chain an input signal from one amplifier
to another, just like the MT-XLR
The MT-BB must be installed at an authorized
service center or the Crown factory.
page 14

5.3 Filter Cleaning

A dust filter is provided on the air intake to the
cooling system (Figure 4.1, letter "B"). If this
filter becomes clogged, the unit will not cool as
efficiently as it should and may produce lower-
than-normal output levels due to high heat-sink
temperature.
To remove the filter, use a phillips screwdriver
to remove the three screws that hold the front
grille in place. Wash the filter with mild dish-
washing detergent and warm water. Be sure to
dry the filter before installing it. Replacement
filters may be ordered from the factory.
Dust filters are not 100% efficient. So, depend-
ing on the local environment, the internal heat
sinks of the amplifier will benefit from periodic
cleaning by a qualified technician. Internal
cleaning information is available from our
Technical Support Group.
Micro-Tech Series Power Amplifiers
Figure 5.1 MT-BB Input Panel Accessory
Operation Manual