Keysight N5225-60107, Руководство пользователя

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26 Installation Note N5225-90107
Description of the Upgrade
Installation Procedure for the Upgrade
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Step 12.Reinstall Front Panel Assembly
For instructions on reinstalling the front panel assembly, click the Chapter 7
bookmark “Removing and Replacing the Front Panel Assembly” in the PDF
Service Guide
1
.
Step 13.Install the New Lower Front Panel Overlay
Refer to Figure 11 on page 25 for this step of the procedure. New parts are
listed in Table 1 on page 7 .
1. Remove the protective backing from the new front panel overlay,
N5225-80003 for PNA N5224/5A or N5225-80006 for PNA N5224/5B or
N5242-80031 for PNA-X N5244/5B models (item Á).
2. Starting from either side, loosely place the overlay in the recess on the
lower front panel, ensuring that it fits tightly against the edges of the
recess.
3. Once the overlay is in place, press it firmly onto the frame to secure it.
Step 14.Reinstall Front Panel Jumpers
Reinstall all twelve of the front panel jumper cables (W36), part number
N5245-20155. Torque to 10 in-lbs.
Step 15.Install the Second Source Boards
On the top side of the PNA, carefully position the gray flex cables so they can’t
be pinched between the covers and the rails.
On the bottom side of the PNA, carefully fold or push down the ribbon cables
and wires so they can’t be pinched between the hardware and the outer cover.
Ribbon cables and wires must never be positioned on top of hardware.
1. See “Downloading the Online PNA Service Guide” on page 5 .