Anritsu VNA Master MS2026C - 7-22 Replacing Ms203 Xc Main PCB Assembly; Part Numbers; Procedure

Assembly Removal and Replacement, MS203xC 7-22 Replacing MS203xC Main PCB Assembly
MS20xxC MM PN: 10580-00307 Rev. D 7-61
7-22 Replacing MS203xC Main PCB Assembly
This procedure is written with the assumption that the Main PCB Assembly has been removed from the
instrument as described in Section 7-21 – Removing MS203xC Main PCB Assembly on page 7-54 and that the
Main PCB Assembly is to be replaced. The basic replacement procedure is the same for MS2036C, MS2037C
and MS2038C instruments.
If an assembly that is mounted on the Main PCB is to be replaced, then skip to the appropriate section:
• Section 7-23 – Replacing LCD Display – 3-15-154 on page 7-64
• Section 7-24 – Replacing Clear Plastic LCD Protector – 3-61368 on page 7-66
Part Numbers
• ND72086 and ND74892 – Main PCB Assembly for MS2036C instruments
• VNA PCB Assembly not included
• LCD Display not included
• GPS Receiver Module PCB not included
• ND75364 – Main PCB Assembly for MS2037C instruments
• VNA PCB Assembly not included
• LCD Display not included
• GPS Receiver Module PCB not included
• ND72087 and ND74893 – Main PCB Assembly for MS2038C instruments
• VNA PCB Assembly not included
• LCD Display not included
• GPS Receiver Module PCB not included
Procedure
1. The Main PCB Assembly has already been removed from the Case Front Assembly.
Removing the LCD Display:
2. Disconnect the LCD multi-conductor signal cable from connector J4202 on the Main PCB Assembly (refer
to Figure 7-29). The cable is permanently attached to the LCD Panel.