Cary J Ojai , CA October 03, 2025 Appliance: LG Microwave/Hood Combo LMV1764ST/00 Lg Microwave/Hood Combo Lmv1764st/00: Flickering desplay. How to replace Main Pcb Power Control Board Assembly. Replaced the control board Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes