Eeprom Backup Disk Procedure - Agilent Technologies 8719ET Service Manual

8719ET/20ET/22ET
8719ES/20ES/22ES
RF Network Analyzers

EEPROM Backup Disk Procedure

The correction constants that are unique to your instrument are stored in EEPROM on the
CPU (A7) assembly. By creating an EEPROM backup disk, you will have a copy of all the
correction constant data for that analyzer, should you need to replace the CPU (A7)
assembly in the future.
Required Equipment and Tools
Equipment Description
3.5-inch Floppy Disk
1. Insert a 3.5-inch disk into the analyzer disk drive.
2. If the disk is not formatted, follow these steps:
a. Press the following:
FACTORY: PRESET
Preset
FILE UTILITIES
Save/Recall
b. Select the format type:
• To format a LIF disk, select
• To format a DOS disk, select
c. Press
FORMAT INT DISK
3. Press the following:
System SERVICE MENU
MORE STORE EEPR ON
Save/Recall SELECT DISK
RETURN SAVE STATE
NOTE The analyzer creates a default file "FILE00". The filename appears in the
upper-left corner of the display. The file type "ISTATE(E)" indicates that the
file is an instrument state with EEPROM backup.
NOTE If you are using a external keyboard to enter data, you must press
after plugging it in the DIN keyboard connector on the rear panel.
Service Guide
8719ET/ES
8720ET/ES
One formatted 1.44 MB disk
Preset
FORMAT DISK
.
FORMAT:LIF
FORMAT:DOS
and answer at the query.
YES
SERVICE MODES
INTERNAL DISK
Adjustments and Correction Constants
EEPROM Backup Disk Procedure
8722ET/ES
.
Preset
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