Michael D Albany , NY January 30, 2015 Appliance: General Electric Free Standing Microwave JVM1740DMBB01 Ge Microwave Jvm1740dmbb01: Display not lighting and/or all buttons not working. How to replace Power Board Asm. I manage a dormatory and we have around 125 of these microwaves. The control panels on them seem to fail quite often and we order these panel assemblies for replacement. Its very easy to replace with basic tools and this always seems to be the right repair for this problem. We get most of our appliance repair parts here, they have the best prices and prompt shipping. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes