6-2Lamp exhaust duct ass'y disassemblies-1.AAAABFig. 6-2Cover duct topShield plateCover duct side1. Remove the 4 screws-A(T3x8) and remove the Cover duct top.2. Remove the screw-B(T3x8) and remove the Shield plate.3. Remove the Cover duct side.- 20 -AAABBBBFig. 6-3Holder fanFan ass'yFN903Mechanical disassemblies6-3Lamp exhaust duct ass'y disassemblies-2.1. Remove the 3 screws-A(T3x8) and remove the Fan(FN903) ass'y.2. Remove the 4 screws-B(M3x9.2) and remove the Fan(FN903).