Agilent Technologies 8753ES Option 011 Service Manual page 147

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 will 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 on an will
remain on and the display will turn on indicating the version of firmware that was
loaded.
In Case of Difficulty
• If the firmware did not load successfully, LED patterns on the front panel can help you
isolate the problem.
— If the following LED pattern is present, an acceptable firmware file name was not
found on the disk. (The desired format for firmware filenames is 8753ES.07._yz,
where yz = the latest firmware revision number.) Check that the firmware disk used
was for the 8753ES.
Chapter 3
LED Pattern
CH1 CH2 R L
✲
Adjustments and Correction Constants
T S
Loading Firmware
3-37