Installation Note N5222-90114
19
Installation Procedure for the Upgrade
3.
If all of the boards are version H or greater, proceed to
Else, you need to remove the synthesizer boards and proceed to step
4.
Removing the synthesizer boards for upgrading:
For instructions, click the Chapter 7 bookmark “Removing and Replacing the
A4-A13 Boards” (i.e., refer to your PNA’s serial number prefix section) in the
PDF Service Guide
1
.
Save all mounting hardware (except the stabilizer bracket) for reuse.
Refer to
Appendix A:, “Synthesizer Board Upgrade (N5240-60074 (with
Tabs)/N5240-60076 (Without Tabs) Version F/G to Version H),” on page A-1
Step 5. Remove the Front Panel Assembly
For instructions, click the Chapter 7 bookmark “Removing and Replacing the
Front Panel Assembly” in the PDF Service Guide
.
Step 6. Remove the A19 Test Set Motherboard
For instructions, click the Chapter 7 bookmark “Removing and Replacing
the A
19
test set motherboard” in the PDF Service Guide1.
IMPORTANT!
This step includes disconnecting and laying aside several
gray cables. Ensure that they are labeled.
1. See