18
EEPROM
ALARM CODE
56 : MEMORY DATA NOT RELIABLE
CAUSE:
All the calibration data are stored in four EEPROM 24C65.
Through the “Check-sum” equation, software checks continuously the result to the
original memorised value. When detecting a difference, the display will show the
following message : ALARM 1 = memory data not reliable.
ACTION TO TAKE:
1) Switch the system off and on.
2) Verify that the EEPROM chip is fitted properly in its socket.
3) Re-enter data and save again, switch off and on again.
4) If the problem persists, replace the PC board making sure that
software/parameters installed are corresponding to the
machine characteristics.
