A25 40 Ghz Highband Detector (Option 540); Tools Required; Removal Procedure; Replacement Procedure - Keysight Technologies E8257D Service Manual

Assembly Replacement

A25 40 GHz Highband Detector (Option 540)

A25 40 GHz Highband Detector (Option 540)

Tools Required

— T–10 driver
— 5/16" open–ended wrench

Removal Procedure

Refer to
1. Disconnect the power cord.
2. Remove the covers from the signal generator. Refer to
3. Position the signal generator with the A31 Motherboard facing away from
4. Using the 5/16" open–ended wrench, disconnect the A25 40 GHz
5. Using the needle–nose pliers, disconnect W15 (not shown) from the A25
6. Remove the A25 40 GHz Highband Detector.

Replacement Procedure

1. Reverse the order of the removal procedure.
2. Torque all T–10 screws to 9 in–lbs.
3. Torque all RF connectors to 8 in–lbs.
4. Perform the post–repair adjustments and performance tests that pertain
326
Figure 3-42 for this procedure.
Cover" on page 258 and
you and the RF deck on top.
Highband Detector from the A24 40 GHz Highband Coupler.
40 GHz Highband Detector.
to this removal procedure.
E8257D/67D, E8663D PSG Signal Generators Service Guide
"Inner Instrument Cover" on page
"Outer Instrument
260.