User's Manual Part 1

Chapter 3 Installation
3.8.4 High Power Amplifier (HPA)
Always install the high power amplifiers with the aid of a second
handler. The high power amplifier weighs approximately 55 lbs.
The HPA compartment frame includes two (2) slots for the HPA’s. Please refer to Figure 3-13
,
Figure 3-14
or drawing SX03-10000-03-D01 for the mounting position of the HPA’s.
The HPA’s should be installed in the following sequence:
1. Before the HPA is installed in the HPA compartment frame, remove the magnetic
plate from the HPA front panel – see Figure 3-19
.
2. Using two handlers, one located on each side of the HPA, lift the HPA and position it
level to the open space in the HPA compartment frame to the left of the DR filter
box.
3. Carefully line up the HPA sliders (1 located on the top and 1 located on the bottom of
the HPA) with the slide rails mounted in the HPA compartment frame – see Figure
3-21
.
4. Slowly push the HPA into the HPA compartment frame until it stops.
5. There are three (3) blind mate connectors located on the HPA rear panel which are
aligned with corresponding connectors on the HPA compartment frame backplane –
see Figure 3-20
. Ensure that the connectors are aligned properly and slowly push
the HPA into the backplane until it stops. At this point, the back side of the HPA front
panel should be flush with the HPA compartment frame.
6. Secure the HPA in place by tightening the 10-32 Phillips head captive screw (located at
the top of the HPA front panel) with a torque rating of 19.2 Inch Lbs. – see Figure
3-21
.
7. Place the magnetic plate at the bottom of the HPA front panel and tighten the 10-32
Phillips head captive screw with a torque rating of 19.2 Inch Lbs. Note: The magnetic
plate must be installed in order for the HPA to power up later on.
8. Repeat steps 1 through 7 for the second HPA, which is mounted in the slot to the right
of the DR filter box.
SX03-10000-01-M01 3-24