I am in the process of reassembling a Sony G70 project projector. The YB board will not allow the IR remote to work through the air or by the control in jack. I have done a board swap and the board is defective somehow. I need for the replacement to be a newer production run due to the production mods that were done to the YB board and other boards on the projector. Series number 1-662-812-12. Does anyone have one to sell or can anyone trouble shoot this one and repair it? Thanks