Service Guide 3-11
8719ET/20ET/22ET Adjustments and Correction Constants
8719ES/20ES/22ES Serial Number Correction Constants (Test 49)
RF Network Analyzers
Serial Number Correction Constants (Test 49)
This procedure stores the analyzer serial number in the A7 CPU assembly EEPROMs.
CAUTION Perform this procedure only if the A7 CPU assembly has been replaced.
Analyzer warmup time: None.
1. Make sure the A7 Switch is in the alter position (ALT).
2. Record the ten character serial number that is on the analyzer rear panel identification
label.
NOTE The serial number may also be entered using the optional external keyboard.
Plug the keyboard into the “DIN KYBD” connector on the rear panel and
press .
3. To erase the HP/Agilent logo, press the following:
4. Enter the serial number by rotating the front panel knob to position the arrow below
each character of the instrument serial number, and then pressing
to enter each character. Enter a total of ten characters: two letters and eight digits.
Press if you make a mistake.
5. Press when you have finished entering the title. Double check that the correct
serial number appears in the title area. If you made a mistake at this point, return to
step 3.
CAUTION You cannot correct mistakes after you perform step 6, unless you contact the
nearest Agilent Technologies sales or service center, for a clear serial number
keyword. Then you must perform “Protected Option Numbers Correction
Constants (Test 50)” and repeat this procedure.
6. Press .
7. Observe the analyzer for the results of the routine:
If the analyzer displays the message Serial Cor DONE, you have completed this
procedure.
8. If no more correction constant routines are going to be performed, return the A7 Switch
to the NRM position and perform the “EEPROM Backup Disk Procedure,” on page 3-33.
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