. So I ordered the motor control, and that did it. Granted the places linked to from this Web site allow you to return the item even if installed, but I like to be sure before I install it. The way one has to eliminate every other possibility completely in order to diagnose a printed circuit board has gone bad is a major headache. This was a confidence builder that will let me come to that conclusion much faster the next time. In fact, after hearing all the clicks between the two circuit boards, and seeing the behavior of the drum when it is working properly, I'll be able to have most of my diagnosis done the next time before I even open up the machine.
. When you order the new motor control, some Web sites will charge you a $50 core charge that will be refunded when you return the defective one. On some sites the charge won't show up until you place the item in your cart. That means that some sites will look $50 cheaper than others. Just make sure you know what prices you comparing.
. The plug on this machine is ever so slightly different than the one in the video. There are small holes on the outside edges of the plug so you can push the tines inward straight through the back instead of prying from the front. Don't overdo it, and check to make sure they aren't bent too far inward. If you don't, the board can run into them and crumple them up, which would create another headache altogether. The connection wasn't the issue in this case, though.
. I'll close with a $10 donation, and since the "Donate" button is missing from this page, I'll recycle my old haiku so anyone who reads this and gains wisdom can donate as well:
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