Dennis M Saint David , AZ November 28, 2014 Appliance: LG Refrigerator LFC20760SW Lg Refrigerator Lfc20760sw / Aswclgy: My lg refrigerator had all the electricity go out. How to replace Svc Pcb Power Control Board Assembly, Onboarding. I called an appliance repairman and over the phone he told me it was most likely the Main Electronic Control Board. I removed the panel and found the Board. I then went online to AppliancePartsPros and entered the Model number for the refrigerator. A parts diagram of the refrigerator came up and I clicked on the Control Board. A complete description of the Board including a picture came. The picture was very important because I compared it with actual Board and was confident that it was the correct part. I ordered the part and it arrived in two working days. I removed the old Board, replaced it with the new Board and the refrigerator is back to working. I have a fair amount of experience with electrical outlets and fixtures and the Board replacement was straightforward. I believe that anyone with basic handyman skills could have made the repair. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes