The ones I have J2 was open and I had to put a solder blob to close it, then it works perfect with disk changes! Not sure about a component being there, you must have a different run. Find another drive that does not have anything at J2 and a quick way to ID a drive that will work is to look at the face plate: If it has a "rounded" area around the opening (where you insert disk) it should work fine. If it is "boxy" it will not work. That is just my experience.