8-16 Service Guide N5230-90014
General Purpose Maintenance Procedures PNA Series Microwave Network Analyzers
Option Enable Utility N5230A
Repairing and Recovering Option Data
License, option, and model number data are stored in an EEPROM on the frequency 
reference board and written into the gen.lic file on the hard disk drive. If the data stored 
in either of these items is lost, it can be recovered from the other item.
If the data on both the hard disk drive and the frequency reference board is lost, it can not 
be recovered. Contact Agilent for assistance. Refer to “Contacting Agilent” on page 2-11.
Recovery of Data After Repair
• If the frequency reference board is replaced, use the 
Repair selection to recover data that 
has been lost as a result of the repair:
1. Select 
Repair from the Option Enable menu bar (see Figure 8-5 on page 8-14).
2. Click the 
Freq Ref board has been replaced check box.
3. Click 
Begin Repair. The data is written from the gen.lic file into the EEPROM.
• If the hard disk drive is replaced, a new gen.lic file is automatically created when the 
Network Analyzer application starts, by retrieving the data from the EEPROM.
Recovery of Data if Option or Model Numbers are Incorrect
If the analyzer option or model numbers are not listed correctly on the analyzer display, in 
either the Option Enable Dialog Box or the About Network Analyzer display, you should 
regenerate the options license file, gen.lic:
1. Exit the 
Network Analyzer application.
2. Remove (or rename) the existing gen.lic file:
a. Open 
Windows Explorer and navigate to C:\Program Files\Agilent\Network 
Analyzer.
b. Delete (or rename) gen.lic.
3. Exit the 
Windows Explorer application.
4. Open the 
Network Analyzer application. The application will generate a new gen.lic 
file when it starts.
5. Check the option listing:
a. On the 
System menu, point to Service, and then click Option Enable, or
b. On the 
Help menu, click About Network Analyzer.
6. If the options are still not listed correctly, contact Agilent for assistance. Refer to 
“Contacting Agilent” on page 2-11.