- I need step-by-step instructions on how to access the lamp fan in my 27-month-old Samsung HLR5067W. After speaking with Samsung, the loud humming noise I hear when turning on the television is caused by an inoperable fan. I replaced the lamp two months ago. I ordered both the lamp fan (3 1/4 BP31-00010B) and the DMD Board Cooling Fan (BP31-00011A). Had no problem replacing the DMD fan; but the lamp fan is behind the lamp and barely visible. I am hesitant about indiscriminately removing screws to get at the fan. If anyone knows exactly what I need to do to safely remove and replace the fan, I would really appreciate your help.