User's Manual Part 2

Chapter 6 Maintenance
6.5.7.3 LB HPA PS 1 (30 VDC Rectifier Module) Removal
The LB HPA PS2 should be removed in the following sequence:
1. Open the electronics compartment front door.
2. Open the HPA compartment front door.
3. Using the LBE GUI, place the LB sub-system in standby mode.
4. Switch OFF the LB HPA PSU circuit breaker (CB2), located on the PDU.
5. Slide the black release button on the rectifier module front grill/cover cover down to
release the grill/cover from the front of the rectifier module – see Figure 6-12
.
6. Pull down on the rectifier module front grill/cover cover to disengage the rectifier
module from the HPA PSU mounting shelf rear panel – see Figure 6-12
.
7. Pull the rectifier module from the HPA PSU mounting shelf and set it aside.
6.5.7.4 LB HPA PS 2 (30 VDC Rectifier Module) Installation
The replacement LB HPA PS 2 should be installed in the following sequence:
1. Slide the black release button on the rectifier module front grill/cover cover to the
right to release the grill/cover from the front of the rectifier module – see Figure 6-13
.
2. Position the rectifier module so that the open grill cover is facing down.
3. Slide the rectifier module into the empty slot on the HPA PSU mounting shelf until it
stops – see Figure 6-12
.
4. To secure the rectifier module in place, lift the grill cover up and push it towards the
rectifier module until it clicks in place. As the grill cover is pushed in place, the
rectifier module will slide all the way into the slot – see Figure 6-12
.
5. Switch ON the LB HPA PSU circuit breaker (CB2), located on the PDU.
6. Using the LBE GUI, place the LB sub-system in transmit_only mode.
7. Close the HPA compartment front door and the electronics compartment front door.
SX03-10000-01-M01 6-22