Agilent Technologies 856290216 service manual 13. Al6 Fast ADC and Al7 CRT Driver Mounting Screws

Procedure 7. A6Al High Voltage Assembly

15.Remove the three screws securing the A6Al high voltage assembly to the A6 power supply assembly.

16.Disconnect ribbon cable A6AlWl from A6J5. See Figure 4-11.

17.For Option 007 spectrum analyzers: Remove the two screws (1) securing two board-mounting posts to the left side frame and remove the posts. See Figure 4-13.

18.Remove the two left side frame screws (2) securing the Al7 assembly (and Al6 assembly in Option 007). For Option 007 spectrum analyzers: Lift up the Al6 FADC assembly and swing it out of the spectrum analyzer. Do not remove any cables.

19.Lift up the Al7 CRT driver assembly and disconnect A6AlW2 from A17J6. Do not remove any other cables from the Al7 assembly.

20.Disconnect the tie wraps from the A6Al assembly cables and remove the A6Al high voltage assembly from the spectrum analyzer.

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Figure 4-13. Al6 Fast ADC and Al7 CRT Driver Mounting Screws

Replacement

1.Secure the A6Al high voltage assembly to the A6 power supply using three panhead screws. Connect ribbon cable A6AlWl to A6J5.

2.Snap post-accelerator cable A6AlW3 to the CRT assembly.

3.Place the black grommet protecting the post-accelerator cable into the CRT shield.

4.Ensure that all cables are safely routed and will not be damaged when securing the A6 cover.

5.Secure the power supply cover shield to the power supply using three flathead screws (1). See Figure 4-23. One end of the cover fits into a slot provided in the rear frame assembly. Ensure that the extended portion of the cover shield is seated in the shield wall groove.

6.Connect A6AlW2 to A17J6.

4-26 Assembly Replacement