Harris Atlas DVL400, Technical Manual

Page: 148 / 180

5-2 888-2473-001 2/25/03
WARNING: Disconnect primary power prior to servicing.
Section 5 Maintenance and Alignments ATLAS Series™
5.2.1 PA Module Removal
PA Modules can be removed (or installed) while the transmitter is turned on, but the
module needs to be shut off via the GUI (Graphical User Interface) first.
STEP 1
To make sure the PA module being removed is shut off, go to the
Power Amp Service screen in Figure 5-1, using the key presses
shown below. This screen allows you to disable the module by
pressing the individual module button on the touchscreen. Figure 5-2
shows the module numbers and location.
Figure 5-1 PA Module ON/OFF Controls
STEP 2
Open the transmitter back door and put
on the protective gloves provided. The
coolant valve provided can be turned
to the off position as shown here but is
optional.
STEP 3
Disconnect the quick couplers
connecting the green and blue hoses to
the back of the module. Have a rag or
towel handy to clean up any drips from
the module or hoses.
STEP 4
Rotate the 1/4 turn fasteners (CCW) on
the front of the PA module. The
fastener is shown at the right.
STEP 5
Get a place ready to put the module
before it is pulled out.
Key Presses
Module #8 shown
shut OFF
(Press the button again to turn the
PA Module back ON, or press the
Transmitter ON button).
Coolant
Valve
Module
Fastener