User's Manual Part 2

Chapter 6 Maintenance
6.5.12.2 DR Filter Box Installation
The replacement DR filter box should be installed in the following sequence:
1. Using two handlers, one located on each side of the DR filter box, lift the
replacement DR filter box and position it level to the open space in the HPA
compartment frame.
2. Carefully line up the DR filter box sliders (2 located on the top and 2 located on the
bottom of the DR filter box) with the slide rails mounted in the HPA compartment
frame – see Figure 6-19
.
3. Slowly push the DR filter box into the HPA compartment frame until it stops.
4. There are five (5) 7/8” blind mate connectors located on the DR filter box rear panel
which are aligned with corresponding connectors on the HPA compartment frame
backplane. Ensure that the connectors are aligned properly and slowly push the DR
filter box into the backplane until it stops. At this point, the back side of the DR filter
box front panel should be flush with the HPA compartment frame.
5. Secure the DR filter box in place by tightening the four (4) 10-32 Phillips head captive
screws with a torque rating of 19.2 Inch Lbs. – see Figure 6-19
.
6. Switch ON the HB HPA PSU circuit breaker (CB1), located on the PDU.
7. Switch ON the LB HPA PSU circuit breaker (CB2), located on the PDU.
8. Using the LBE GUI, place the LB sub-system in transmit_only mode.
9. Using the HBE GUI, place the HB sub-system in broadcast mode.
10. Close the HPA compartment front door and the electronics compartment front door.
SX03-10000-01-M01 6-38