-14-Mechanical DisassemblyvOptical unit, Temp., Line Filter board,Fans removalFig.3Temp. boardSP901Projection lensNoise filterOptical unit(T3x6)x(T3x8)(M.5x8)x4(T3x8)(T3x6)Line filter boardFN904FN903FN905Duct bottom1. Remove the Optical unit.. Remove Screw (T3x8) and 4 hooks on the duct and then remove the Duct.3. Remove the Line filter board and Temp. board.4. Remove fans and SP901.Duct top(T3x8)x5