to download LG Multi V Plus - Hawco
to download LG Multi V Plus - Hawco
to download LG Multi V Plus - Hawco
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Copyright ©2007 <strong>LG</strong> Electronics. Inc. All right reserved.<br />
Only for training and service purposes<br />
- 125 -<br />
Troubleshooting Guide<br />
Error No. Error Type Error Point Main Reasons<br />
76*<br />
Master 761<br />
Slave1 762<br />
Slave2 763<br />
Fan DC Link High Voltage<br />
Error<br />
Fan PCB DC link voltage supplied<br />
over 780V\<br />
■ Error Diagnosis and Countermeasure Flow Chart<br />
Is input voltage normal?<br />
Yes<br />
Is Fan PCB assembly normal?<br />
Yes<br />
Recheck power and<br />
installation condition<br />
No<br />
No<br />
T S R<br />
Noise filter output(lower part)<br />
Check<br />
R~S/S~T/T~R phase voltage is 380V ± 10%<br />
R~N/S~N/T~N phase voltage is 220V ± 10%<br />
→ Check connection condition and wiring if power is abnormal<br />
Replace Fan PCB assembly<br />
Measuring input voltage<br />
Noise filter wiring<br />
N T S R<br />
Noise filter input (upper part)<br />
1.Input power abnormal<br />
2.Fan PCB assembly defect<br />
<strong>LG</strong>E Internal Use Only
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