Keith F Cleveland , TN September 09, 2015 Appliance: Maytag Microwave Hood Combo MMV5207BAS14 Maytag Microwave Mmv5207bas14: Ther led display was extremely weak and hard to read. How to replace Pcb Assy. I researched the make and model number, looked for advice on tearing the unit down and replacing the power supply board. Bought the part , performed the whole job while waiting for coffee to brew in the morning. The whole job only took 5 to 6 minutes! 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes