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Installation Procedure for the Upgrade
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
Figure 1
A24 Mixer Brick Assembly
Installation Note N5222-90119
— 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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