4. Replacing Assemblies - Disassembly and Reassembly
To Remove A15 9.2 GHz Microwave Generator Module
167
To Remove A15 9.2 GHz Microwave
Generator Module
1 Follow the instructions as described in “To Remove the Covers”.
2 Place the instrument on its side.
3 On the bottom side of the instrument, loosen all SMA connectors from
A15 J1 through J5.
4 Remove the four nuts that attach A15 to the chassis.
5 Clip the wire ties that bundle the cables connected to J2, J3, J4, and
+4.5Vdc on A15.
6 Carefully slide A15 out far enough to gain the clearance required to
remove all SMA connectors.
7 Reverse the order of steps used to install a new/functional module.
To Remove A16 High Voltage Supply
Module
1 Refer to the A12 removal and replacement procedure near the beginning
of this section.
2 Use the appropriate steps to remove and replace A16.
WARNING
HAZARDOUS VOLTAGES ARE PRESENT ON THE A16
POWER SUPPLY MODULE. WAIT AT LEAST THREE
MINUTES FOR THE CAPACITORS ON THE A16 POWER
SUPPLY MODULE TO DISCHARGE BEFORE WORKING
ON THE INSTRUMENT.
3 Reverse the order of steps used to install a new/functional module.
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