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Installation Procedure for the Upgrade
These cables must be saved - they will be reinstalled.
NOTE: Remove and save the cable guards for the front panel jumpers.
Step 7. Remove the A23 Mixer Brick Assembly
Remove the A23 mixer brick assembly from the PNA. For instructions, click the
Chapter 7 bookmark, "Removing and Replacing the A23 and A24 Mixer Bricks"
in the PDF Service Guide1.
Step 8. Assemble the A24 Mixer Brick Assembly
1. Follow the instruction shown in
Installation Note N5222-90118
— W64 (N5242-60025) A23 mixer brick (R1) to A20 IF multiplexer (P601)
— W65 (N5242-60026) A23 mixer brick (R2) to A20 IF multiplexer (P801)
— W62 (N5247-60023) A20 IF multiplexer board P603 to A12 SPAM board
J2 (2-port)
— W60 (N5247-60024) A20 IF multiplexer board P203 to A12 SPAM board
J5 (2-port)
— W4 (N5222-20040) W3 to A25 port 1 receiver coupler
— W10 (N5222-20043) W9 to A24 port 2 receiver coupler
— W88 (N5222-20004) A42 port 1 receiver attenuator to A23 mixer brick
(A)
— W13 (N5222-20005) A25 port 1 receiver coupler to A33 reference mixer
switch
— W35 (N5222-20033) A33 reference mixer switch to front-panel REF 1
SOURCE OUT
— W36 (N5222-20032) REF 1 RCVR R1 IN to A33 reference mixer switch
— W30 (N5222-20091) (qty = 6) Front panel jumper
in
Table 1 on page 8
of this document.
Figure 1
and
Figure
2. New parts are listed
15
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