You ever want to take apart something prohibitively expensive and find out what's inside? I do, all the time. Lucky for me this cast aluminum massager is broken (it won't turn off). So I get to try to fix it (hopefully). It's likely just a bad mosfet. But it'd be fun to upgrade. It's surprisingly low power. 19.5W, 13v @ 1.5A 13v is a bit strange to see, but whatever. Could very likely be replaced by a 12v supply without significant loss in power. One screw came out halfway and appears to stop. Maybe it has a retaining clip? The other at the end won't budge. Time for a bigger screwdriver. It took a bit of prying. The retaining ring is glued on (I was worried it was screwed on). A bit of wiggling and it's free. The screw that I thought had a retaining clip actually has a screw standoff to hold the PCB in. I might try to take them apart, but it's not necessary to. And now for what you've all been waiting for. It's an incredibly simple