Whenever something like this happens to me the first place I look is mechanical, specifically bearings and pulleys. Make sure none of them are worn out or almost worn out. Make sure the tracks are aligned properly also. Try lubricating all the moving parts. Something like 3in1 oil. Be careful using spray libricants, a lot of them work pretty good but they also attract dirt.

If you decide it is the logic board, I can tell you where NOT to buy a replacement: Ontario Supply. Found them on-line and the service was great, but the board they sent turned out to be defective and after I sent it back, they refused to refund the purchase price. My advis]ce is just to call a repair service.