3-34 Service Guide
Adjustments and Correction Constants 8719ET/20ET/22ET
EEPROM Backup Disk Procedure 8719ES/20ES/22ES
RF Network Analyzers
4. Press . Use the front panel knob
and the softkey (or an external keyboard) to rename the file
“FILE00” TO “N12345” where 12345 represents the last 5 digits of the instrument's
serial number. (The first character in the filename must be a letter). When you are
finished renaming the file, press .
5. Write the following information on the disk label:
• analyzer serial number
• date backup was made
• “EEPROM Backup Disk”
In Case of Difficulty
• Insert another disk in to the analyzer disk drive and press .
• The analyzer should display a catalog of the disk contents. If the catalog does not
appear, refer to Chapter 6 , “Digital Control Troubleshooting,” or contact the nearest
Agilent Technologies sales or service office.
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