User Guide

5. Trouble Shooting
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Only for training and service purposes
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09
Indoor EEPROM Check
Sum Error
• Check sum error
1. Check the poor soldering
2. Check the insertion condition of the EEPROM
3. Check the PCB Connection
Display
code
Title Cause of error Check point & Normal condition
Check Point
1. Check the EEPROM Direction
2. If the EEPROM value & the Program value are not matched, the Code is Displayed
3. After Checking the connection and Insertion, replace the PCB or Option PCB
<EEPROM Direction Check Point>