Keysight E8257D/67D - A33 6 Db PAD (Options 503, 509, 520, and 521)

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E8257D/67D, E8663D PSG Signal Generators Service Guide

Assembly Replacement

A33 6dB PAD (Options 503, 509, 520, and 521)

3-90

A33 6dB PAD (Options 503, 509, 520, and 521)

Tools Required

• 5/16” open–ended wrench

• needle–nose pliers

Removal Procedure

Refer to Figure 3- 55 for this procedure.

1. Disconnect the power cord.

2. Remove the covers from the signal generator. Refer to “Outer Instrument Cover” on page 3- 4 and “Inner

Instrument Cover” on page 3- 6.

3. Using the 5/16” open–ended wrench, disconnect the A33 6dB PAD from the A24 20 GHz Highband Coupler.

4. Using the 5/16” open–ended wrench, disconnect the A33 6dB PAD from the A25 20 GHz Highband Detector.

5. Remove the A33 6dB PAD.

Replacement Procedure

• Reverse the order of the removal procedure.

• Torque all RF connectors to 8 in–lbs.

• Perform the post–repair adjustments and performance tests that pertain to this removal procedure.