10
PERFORM THE FOLLOWING STEPS
1. Remove the door assembly by loosening the two screws located in the upper left and right
corners. The screws are captive and will not fall out. Pull forward and outward on the door
assembly to clear the case.
2. In the upper left portion of the fuse board, loosen the
NEG-
lug (White wire) and the
VCC+
lug
(Red wire). Do not back the lug screws all the way out.
3. Locate the tab at the bottom of the fuse board holding the board in place. Gently depress the
tab allowing the fuse board to be pulled forward.
4. With the fuse board pulled slightly away from its mounting, pull the Red and White wires out of
the lugs.
5. In the AC section of the enclosure, locate the Black wire coming up from the converter in the
lower section. As an extra precaution,
MAKE SURE THE CONVERTER BREAKER IS IN THE
OFF POSITION
. Remove the wire from the breaker.
NOTE:
this wire has a metal pin terminal
on the end inserted into the breaker. Remove and position out of the way any wire connected
to the pigtail.
6. Locate and remove the converter’s Green Ground wire attached to the AC Ground bar on the
left side of the compartment. In a similar fashion, locate and remove the converter’s White
Neutral wire attached to the AC Neutral bar at the top of the compartment.
7. In the converter compartment, remove the two screws at the front of the MBA holding it in
place. Slide the MBA forward routing the wires through the slots in the case until the MBA
clears the enclosure.
If the MBA is being returned under a warranty claim, follow the packaging instructions in your
warranty claim packet. When installing a replacement MBA, reverse the order of steps 1-7.
Figure 5
