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4. Troubleshooting
4-4-8 E-51, E-53 or E-54
Insert and solder
an EEPROM
Replace the
EEPROM and repair
the short circuit.
EEPROM Error (E-51, E-53, or E-54)
NO
Has the EEPROM been inserted?
YES
YES
Is the EEPROM terminal opened or
is there a short-circuit?
NO
EEPROM Defect
Replace the EEPROM
YES
Does it work properly?
NO
S/W Error
After Power > On,
NO
does the symptom continue?
YES
Replace the PCB.
Perform the operation again and check if it
is working properly.
26
: An R4LCO40 or 24LCO4 EEPROM
is to be used. Check if a proper EEPROM
has been installed.
MICOM
EEPROM
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