TB8100 Service Manual Power Management Unit Card and Board Replacement 265
© Tait Electronics Limited September 2006
15.4 Replacing the Auxiliary Power Supply Board
Important You must reprogram the PMU if you change its configura-
tion by fitting or removing an auxiliary power supply board.
Refer to “Reprogramming and Recalibration” on
page 266.
Refer to “Power Management Unit Disassembly and Reassembly” on
page 249 for details on removing and refitting the top and bottom covers
and rear panel. The circled numbers in the following instructions refer to
Figure 15.2.
Removal 1. Remove the top and bottom covers and rear panel.
2. Unplug the loom
b from the auxiliary power supply board.
3. Remove the two M4 Torx screws
c securing the board to the
heatsink.
Refitting 1. Position the board as shown in Figure 15.2 and secure with the two
M4 Torx screws
c.
2. Reconnect the loom
b.
3. Replace the rear panel and top and bottom covers.
Figure 15.2 Replacing the auxiliary power supply board
cb
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