Casio SF-A7 User's Guide download pdf (Page 18)

Chapter 1 Getting Acquainted

Data Errors

The PV Unit performs a self-check routine whenever you turn it on. The message

shown below appears if the PV Unit detects a problem with data stored in its

memory.

Once data is lost due to a data error it cannot be recovered. Data errors are generally

caused by one of the following problems.

• Interruption of battery power

• Severe electrostatic charge, strong impact, changes in temperature, or

changes in humidity

• Hardware problems

Once the data error message appears, the PV Unit will not accept any input or

editing of data. In order to return memory to normal (and permit further data

editing and input), you have to perform the RESET operation to clear all data.

Before doing so, you may want to recall important data and write it down (if you

don’t yet have a copy). You can then re-input the data after clearing PV Unit

memory.

Continued problems after performing the RESET operation can indicate a serious

hardware problem. Consult with your nearest CASIO dealer if problems persist.

To reset after viewing data

1. After the Data error message appears, tap Yes.

2. In response to the message that appears (Data error! Consult your

User’s Guide for correct procedure.), tap OK.

• This displays the pop up tool screen.

3. Now you can enter other modes to recall data and make handwritten

copies if you want.

4. After recalling the data you want, perform the RESET operation under

“Resetting the PV Unit” on page 167.

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Casio SF-A7 User's Guide Page 18