2-68
Assembly Replacement
A25 40 GHz Highband Detector (Option 540 Only)
A25 40 GHz Highband Detector (Option 540 Only)
Tools Required
• T-10 driver
• 5/16” open ended wrench
Removal Procedure
Refer to Figure 2-34 for this procedure.
1. Disconnect the power cord.
2. Remove the covers from the signal generator. Refer to "Outer Instrument Cover" on page 2-5
and "Inner Instrument Cover" on page 2-7.
3. Position the signal generator with the A31 Motherboard facing away from you and the RF deck
on top.
4. Using the 5/16” open ended wrench, disconnect the A25 40 GHz Highband Detector from the A24
40 GHz Highband Coupler.
5. Using the needle-nose pliers, disconnect W15 from the A25 40 GHz Highband Detector.
6. Remove the A25 40 GHz Highband Detector.
Replacement Procedure
• Reverse the order of the removal procedure.
• Torque all T-10 screws to 9 in-lbs.
• Torque all RF connectors to 8 in-lbs.
• Perform the post-repair adjustments and performance tests that pertain to this removal
procedure.
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