LG Multi-Inverter Service Manual page 95

4. Trouble Shooting
Display
Title
code
Inverter PCB & Main
60
EEPROM check sum error
I Error Diagnosis and Countermeasure Flow Chart
Is EEPROM insertion normal?
Yes
Is inverter PCB assembly normal?
Yes
MAIN PCB assembly normal?
Yes
Recheck power and installation condition
Check Point
- Check the EEPROM Check sum & Direction
27/30/40k
<MAIN PCB>
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Only for training and service purposes
Cause of error
EEPROM Access error
and Check SUM error
1.Check EEPROM insert direction/connection condition
No
2.Check EEPROM Check SUM
¡ Replace if abnormality found
No
Replace inverter PCB assembly
No
Replace MAIN PCB assembly
- 94 -
Check point & Normal condition
1. EEPROM contact defect/wrong insertion
2. Different EEPROM Version
3. ODU Inverter & Main PCB assembly damage
<EEPROM Direction Check Point>
LGE Internal Use Only