7-25 Installing Main Pcb And Reassembling Instrument; Procedure - Anritsu VNA Master MS2026C Maintenance Manual

Assembly Removal and Replacement, MS203xC

7-25 Installing Main PCB and Reassembling Instrument

This procedure is written with the assumption that any required assemblies have been replaced and installed
on the Main PCB Assembly.

Procedure

Installing the Main PCB Components:
1. If not already done, then install the LCD Display on the Main PCB as described in
Section 7-23 "Replacing LCD Display – 3-15-154" on page
Installing the Clear Plastic LCD Protector:
2. If required, but not already done, then install the LCD Protector as described in
Clear Plastic LCD Protector – 3-61368" on page
3. If not already done, then clean the inner surface of the Protector with compressed air and LCD
compatible wipes, leaving the outer protective film in place, and place the Protector into the Case Front,
with the "lip" towards the inside of the case.
10
9
Figure 7-33. Main PCB (Mother Board) in Case – Standoffs and Screws
Installing the Main PCB:
4. The connectors (External Power Input, LAN, USB, and Headset Jack) of the Main PCB will protrude into
the Case Front. Holding the standoff (item 7 in
first into the case.
a. Rest the edge of the Main PCB on the screw pads and apply a slight pressure to the Main PCB
toward the top of the case by pressing on a shield. If the Main Keypad is not yet installed in the
Case Front, then skip to
continue with the following sub steps:
MS20xxC MM
1
8
Step 5. If the Main Keypad is already installed in the Case Front, then
PN: 10580-00307 Rev. D
7-25 Installing Main PCB and Reassembling Instrument
7-64.
7-66.
2
7
Figure 7-33), insert that connector edge of the Main PCB
Section 7-24 "Replacing
3 4
5
6
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