Agilent Technologies N5230AU-974, Installation Note

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14 Installation Note N5230-90022
Step 6. Remove the 20 GHz Components
Refer to Figure 9 for this procedure.
1. Place the analyzer bottom-side up on a flat surface.
Remove the A17 MASS 26.5
2. Disconnect the ribbon cable (item
①
) from the MASS 26.5. Leave this ribbon cable
attached to the A16 test set motherboard.
3. Disconnect the three flexible coaxial cables, W29–W31, from the MASS 26.5. Leave these
cables connected at the other end.
4. Remove the MASS 26.5 by removing the four attachment screws (item
②
). Retain the
screws for installation of the A19 MASS 50.
Remove the A20 Mixer Brick
5. Disconnect the ribbon cable (item
③
) from the mixer brick. Leave this ribbon cable
attached to the A16 test set motherboard.
6. Label, for re-connection later, the four flexible coaxial cables, W21–W24, that are
connected to the mixer brick. It is necessary to label these cables because they connect to
the A5 SPAM board on the top side of the analyzer and it is therefore difficult to trace their
connection path and location. Disconnect these four cables from the mixer brick but leave
them connected at the other end.
7. Remove the mixer brick by removing the four attachment screws (item
④
). Retain the
screws for installation of the A20 50 GHz mixer brick.
Remove the A25 and A26 Step Attenuators
8. Disconnect the ribbon cable (item
⑥
) from each of the attenuators. Leave these ribbon
cables attached to the A16 test set motherboard.
9. Remove three screws (item
⑤
) from each attenuator bracket. Remove the attenuators,
with the brackets attached, from the analyzer.