Cooling Fan Options; Level Control Shaft Lock - Crown MA-1202 Operation Manual

MA Series Power Amplifiers
5 Advanced Features
and Options
For PIP2s featuring ribbon cable connectors,
simply locate the two connectors on the under-
side of the PIP circuit board, then connect the
two input ribbon cables coming from the ampli-
fier (see Figure 5.3). Both ribbon cables should
run smoothly from the amplifier to the PIP card.
Insert the PIP and attached cables into the PIP
opening in the back of the amplifier, then screw
securely into place.
WARNING: Disconnect power to the
amplifier when installing or removing a
PIP module.
Operation Manual
Figure 5.3 Installing a PIP2 Module

5.3.2 Cooling Fan Options

Every Macro-Tech amplifier has a built-in high-
velocity fan that provides optimum cooling. Two
optional replacement fan blades are available for
special cooling requirements. 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 recommended for the Macro-Tech
2402). Important: The optional replacement fan
blades should only be installed by a qualified tech-
nician.

5.3.3 Level Control Shaft Lock

A security accessory, the shaft lock can be used to
secure your amplifier's level controls in situations
where the front panel controls are subject to tamper-
ing. One is needed for each channel. They can be
ordered through the Crown Service/Parts Depart-
ment. For more information, contact your local
Crown dealer or Crown Technical Support.
Figure 5.4 Installing a Level Control Shaft Lock
page 17