Chapter 18 653
Troubleshooting
Signal Generator Lock-Up
Signal Generator Lock-Up
If the signal generator is locked up, check the following:
• Make sure that the signal generator is not in remote mode. (In remote mode, the R annunciator will
appear on the display.) Press
Local to exit remote mode and unlock the front panel keypad.
• Make sure that the signal generator is not in local lockout condition. Local lockout will prevent front
panel operation of the signal generator. For more information on local lockout, refer to the E4428C/38C
ESG Signal Generators Programming Guide.
• Check for a progress bar on the signal generator display which indicates that an operation is in progress.
•Press
Preset.
• Cycle power on the signal generator.
Fail-Safe Recovery Sequence
The fail-safe recovery sequence should only be used if the previous suggestions do not resolve the problem.
NOTE This process will reset the signal generator, but it will destroy data.
The fail-safe recovery sequence will destroy the following types of data:
• all user files (instrument state and data files)
•DCFM/DCΦM calibration data
• persistent states
Do not attempt to perform any other front panel or remote operations during the fail-safe sequence.
To run the fail-safe sequence, follow these steps:
1. Hold down the
Preset key while cycling power.
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