26 Chapter 1
Installing Your Analyzer
STEP 6. Back Up the EEPROM Disk
STEP 6. Back Up the EEPROM Disk
Description
Correction constants are stored in EEPROM on the A9 controller assembly. The advantage
of having an EEPROM backup disk is its capacity to store all the correction-constant data
to a new or repaired A9 assembly without having to rerun the correction-constant
procedures. The HP 8753E network analyzer is shipped from the factory with an EEPROM
backup disk which is unique to each instrument. It is prudent to make a copy of the
EEPROM backup disk so that it can be used in case of failure or damage to the original
backup disk.
Equipment
3.5-inch disk.......................................................................................HP 92192A (box of 10)
CAUTION Do not mistake the line switch for the disk eject button. If the line
switch is mistakenly pushed, the instrument will be turned off, losing
all settings and data that have not been saved.
EEPROM Backup Disk Procedure
1. Insert a 3.5-inch disk into the HP 8753E disk drive.
2. Press
Preset so that the preset state is stored.
3. If the disk is not formatted, press
Save/Recall, FILE UTILITIES, FORMAT DISK.
■ To format a LIF disk, select
FORMAT:LIF (The supplied EEPROM backup disk is LIF.
The analyzer does not support LIF-HFS format.)
■ To format a DOS disk, select
FORMAT:DOS
Press FORMAT INT DISK and answer YES at the query.
4. Press
System, SERVICE MENU, SERVICE MODES, MORE, STORE EEPR ON.
Then press
Save/Recall, SELECT DISK, INTERNAL DISK, RETURN, SAVE STATE to store the
correction-constants data onto floppy disk.
NOTE A default file "FILE0" is created. The file name appears in the upper
left-hand corner of the display. The file type "ISTATE(E)" describes the
file as an instrument-state with EEPROM backup.
5. Press
FILE UTILITIES, RENAME FILE, ERASE TITLE. Use the RPG and the SELECT LETTER softkey to
rename the file "FILE0" to "N12345" where 12345 represents the last 5 digits of the
instrument's serial number. (The first character in the file name must be a letter.) When
finished, press
DONE.
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