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196 Chapter 10
Troubleshooting
Data Storage Problems
Data Storage Problems
Registers With Previously Stored Instrument States are Empty
The save/recall registers are backed-up by a battery when line power to the signal generator is not
connected. The battery may need to be replaced.
To verify that the battery has failed:
1. Turn off line power to the signal generator.
2. Unplug the signal generator from line power.
3. Plug in the signal generator.
4. Turn on the signal generator.
5. Observe the display for error messages.
If either error message −311 or −700 is stored in the error message queue, the signal generator’s battery
has failed.
6. Refer to the Service Guide for battery replacement instructions.
Saved Instrument State, but Register is Empty or Contains Wrong State
If you select a register number greater than 99, the signal generator automatically selects register 99 to save
the instrument state.
If the register number you intended to use is empty or contains the wrong instrument state, recall register 99:
Press
Recall > 99 > Enter.
The lost instrument state may be saved there.