RX02 EMI?

The plot thickens.... 1) I took tony's suggestion and disconnected the AC on both RX02 spindle motors from the back. The problem still occurs so it's not the RX02 spindle motors.

2) I extended the RX02 on the rails and looked underneath. There is a metal plate bolted under each drive. I believe it's steel, it's that burnished "gold" colored metal. There is a separate flat plate under each drive, and the plate L's up the side about 3/4 of an inch. I believe this is properly closed.

3) I put that steel plate between the RL02 and RX02 again and sure enough the problem disappears. This time I tried moving the plate around to localize exactly what on the RL02 must be covered to keep the problem from occuring. This may be telltale. The portion of the drive that needs to be covered by the metal plate to keep the problem from occuring is the top back cover of the RL02. This is the plastic section that is about 8 inches deep front to back, and is exactly over the drive logic board. Interesting that this would mean the plate isn't covering the heads. Also interesting - based on the depth difference between the RX02 and RL02, no part of the RX02 extends over that part of the RL02 EXCEPT the black "wedge" fan housing and fan on the back.

4) I believe that there is supposed to be some type of cover over the top of the RX02. I do not have this cover. I have what I was TOLD is the top cover of the RX02, but there's no way it could possibly fit over the top. I know that a rackmounted RX02 doesn't have a nice finished metal cover, but I do think there is some type of metal cover that is supposed to be on top. I wouldn't have thought this to be so germane to the problem, because the problem is definitely "down and to the rear" from the RX02.