Roger R Walker , MI April 13, 2015 Appliance: Samsung Microwave SMH9187ST/XAA Samsung Microwave Smh9187st/Xaa / : Se error displayed. How to replace Microwave Control Panel Assembly. After fixing the problem numerous times, by cleaning the ribbon cable, the microwave finally would not function. Rather than mess around w/ placing paper between the two cables, I decided to order the control panel. Since I had taken the entire panel off for cleaning a few times before, that was easy. The hardest part was taking the motherboard apart from the front keypad. This was accomplished by watching a Youtube vid and just using caution and common sense to separate the parts. Taking the metal backing piece off was a bit difficult, but by pushing the tabs in and gently pulling, it came apart. Put it back together, and PRESTO, problem solved. This was the way to go, as buying the ENTIRE control panel (unnessesary) would have cost anywhere from $106-136. Simple fix. $51.06/ 20 minutes. Delivery was fast and on time. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes