Robert S Mckinney , TX August 21, 2018 Appliance: Samsung Dryer DV407AEW/XAA-0002 Samsung Dryer Dv407aew/Xaa-0002 / : Dryer would not turn on. How to replace Assy Pcb Main;Ace-Pjt. R&R Control Circuit Board. I ordered the replacement CB on Friday about 12 noon, and was pleased to receive it in less than 24 hours. It only took 15-20 minutes to install. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes