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8. Remove the A2 module cover.
9. Disconnect 5MB connector A3WlPl from A2J3 on the A2 module.
10. Loosen and remove the six (6) screws and hardware which hold down the A3 module.
11. Lift out the A3 module tipping it slightly to avoid bumping the module against 12
and the five (5) feed-through capacitors located on the side of the receiver frame.
CAUTION
Bumping J6 or the capacitors may cause damage to the A3 module
. printed circuit .track or components.
5.7.8
A3 Module Installation
Installation of the A3 module is the reverse of removal with the following note:
NOTE
Ensure cable A3WIPI is located near the notch in the receiver frame when
installing the module.
CAUTION
Ensure cable A3WIPI is routed through the notch in the frame
prior to installation of both the A2 and A3 module covers. Failure
to do so may result in damage to the cable.
5.7.9
A4 Module Removal
I. Perform the Preliminary Procedures
as
directed in Paragraph 5.7.1.
Remove the receiver top cover
as
directed in Paragraph 5.7.2.
3. Remove the Bandwidth Filter cover and Bandwidth fIlters
as
directed in
Paragraph 5.7.25.1.
4. Disconnect 5MB connector WIP2 from A4Jl.
5. Disconnect 5MB connector WIIPI from A4J3.
6. Disconnect 5MB connector W12Pl from A4J4.
7. Disconnect 5MB connector W6P2 from A4J5.
8. Disconnect 5MB connector WIOPI from A4J6.
9. Disconnect ribbon connector A5W 1 PI from A4J8.
10. Disconnect ribbon connector Wl6PI from A417.
11.
Disconnect ribbon connector Wl5PI from A4J2.
12. Loosen and remove the twelve (12) screws and hardware which hold down the
A4 module.
5-20
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