Wanted to share with you something I learned. PS2 5volt board. Engine is programmed into DCS. Train starts and runs no problem but after some time running you cannot control it with your DCS or it moves to inactive. You then kill the power to the track and then power up again and engine is back in active again and starts and works for some time and then you have response loss again or engine is inactive in remote. I found that changinging the radio pickups seems to help. if you have an old failed board you can remove from old board and install in the board your having issues with. I was able to swap out while board is still in the engine by installing a wedge between both board which held the bottom board up so i could unsolder and remove the frequency filter and replace with others.