Screen PTR LTB16 Board for 4100. Condition is Used. We were getting a pb2 error and had this board replaced a couple years ago and we were told to hang on to this board. The problem ended up being the rip wasn’t compatible with new usb on PC. We are selling our 4100 and no longer need. This board is being sold as is used. I was told they are very expensive and they can be repaired. Shipped with USPS Priority Mail. Ship in USA only