Panasonic SA-PM3E Service Manual page 16

EEPROM (if applicable) will appear on FL display. Below is information
on the EEPROM IC (Rom correction) under 3 examples:
1. When EEPROM IC is detected and there is no ROM correction:
2. When EEPROM IC is detected and has ROM correction:
3. When EEPROM IC is detected and has ROM correction but NG:
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