At1 115 Db Attenuator (Option 1E1); Tools Required; Removal Procedure; Replacement Procedure - Agilent Technologies PSG Series Service Manual

Assembly Replacement

AT1 115 dB Attenuator (Option 1E1)

AT1 115 dB Attenuator (Option 1E1)

Tools Required

• T-10 driver
• 5/16" open ended wrench

Removal Procedure

Refer to Figure 2-23 for this procedure.
1. Disconnect the power cord.
2. Remove the covers from the signal generator. Refer to
"Inner Instrument Cover" on page
3. Position the signal generator with the A31 Motherboard facing you so that the RF deck is on top.
4. Disconnect the AT1W1 ribbon cable from A26J13.
5. Using the 5/16" open ended wrench, disconnect the W24 and W25 RF cables from the AT1 115 dB Attenuator.
6. Using the T-10 driver, remove the two screws (1) that attach the AT1 115 dB Attenuator to the side panel.
7. Remove the attenuator from the A26 MID bracket.
8. Using the T-10 driver, remove the sheet metal from the attenuator.

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.
2-48
"Outer Instrument Cover" on page 2-4
2-6.
and