Loadingfirmwareintoanewcpu - HP 8753E Service Manual

Loading Firmware into a New CPU
Use this procedure to load firmware for an instrument whose CPU board has
been replaced.
1. Turn off the network analyzer.
2. Insert the firmware disk into the instrument's disk drive.
3. Turn the instrument on. The firmware wilI be loaded automatically during
power-on. The front panel LEDs should step through a sequence as firmware
is loaded. The display will be blank during this time.
At the end of a successful loading, the LEDs for Channel 1 and Testport 1
will remain on and the display will turn on indicating the version of firmware
that was loaded.
Note
After the llrmware has been loaded, the correction constants
must be restored. Refer to 'Ihble 3-l (2 of 3) to identify the
service procedures required to restore (retrieve) or recreate the
correction constants.
If the lirmware did not load successfully, LED patterns on the front panel can
n
help you isolate the problem.
If the following LED pattern is present, an acceptable hrmware filename
q
was not found on the disk. (The desired format for gnuware filenames is
Adjustments and Correction Constants 3 4 3