654 Chapter 18
Troubleshooting
Signal Generator Lock-Up
2. Continue to hold down the Preset key until the following message is displayed:
WARNING You are entering the diagnostics menu which can cause unpredictable instrument
behavior. Are you sure you want to continue?
CAUTION Carefully read the entire message! It may list additional risks with this procedure.
3. Release the
Preset key.
4. Press
Continue to continue with the sequence (or Abort to abort with no lost files).
At the conclusion of the sequence, follow these steps:
1. Cycle power.
Cycling power restores all previously installed options. You should expect to see several error messages
resulting from calibration files being restored from EEPROM.
2. Perform the DCFM/DCΦM calibration.
Refer to the
DCFM/DCΦM Cal softkey description in the E4428C/38C ESG Signal Generators Key and
Data Field Reference Volume 1.
3. Agilent Technologies is interested in the circumstances that made it necessary for you to initiate this
procedure, please contact us using the website on page 659. We would like to help you eliminate any
repeat occurrences.
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