2-78
Assembly Replacement
A29 20 GHz Doubler
A29 20 GHz Doubler
Tools Required
• T-10 driver
• 5/16” open ended wrench
Removal Procedure
Refer to Figure 2-39 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 you and the RF deck on top.
4. Using the 5/16” open ended wrench, disconnect the following RF cables:
• W38 from A29J1
• W39 from A29J4
• W40 from A29J3
5. Using the 5/16” open ended wrench, disconnect the following RF cable according to the signal
generator you have.
E8247C/57C: Disconnect the W41 RF cable from the A29J2.
E8267C: Disconnect the W77 RF cable from the A29J2.
6. Using the T-10 driver, remove the two screws (1) that attach the A29 20 GHz Doubler to the RF
deck.
7. Disconnect the W32 ribbon cable from the A29 20 GHz Doubler.
8. Remove the A29 20 GHz Doubler from the RF deck.
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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