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Step 7. Remove the 20 GHz Components
Refer to
Figure 11
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
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
screws for installation of the A19 MASS 50.
Remove the A20 Mixer Brick
5. Disconnect the ribbon cable (item
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
screws for installation of the A20 50 GHz mixer brick.
Installation Note N5230-90010
①
) from the MASS 26.5. Leave this ribbon cable
③
) from the mixer brick. Leave this ribbon cable
②
). Retain the
④
). Retain the
19
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