JVC GR-DVA10 Technical Manual page 68

2. Data Deletion from Doctor Program Area Only
If the microcomputer is replaced, it occasionally needs to delete the Doctor Program stored in the
EEPROM. Although the service support system software has no data deletion function like the emergency
utility, the Doctor Program can be deleted by the "Doctor Load" function.
1. Read out the EEPROM data.
2. Open the initial data file supplied with the service support system software by the "Doctor Load"
function.
Since nothing of the Doctor Program is written in the initial data file as mentioned previously, all data
in the Doctor Program area are reset to "FEh" respectively as the initial data file is loaded, in other
words, all data are apparently deleted from the Doctor Program area (data stored in the EEPROM of
the camcorder is not yet rewritten at this stage).
3. Confirm that the Doctor data are reset to "FEh" in the map.
4. Write the data in the EEPROM in the usual way.
It is possible that the data only in the Doctor Program is deleted with this process.
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