Then put the terminal bracket to the side.3-5. Remove the Power SupplyModuleRemove the four screws indicated by thered circles in below picture.Then remove the power supply module.3-6. Remove the MainboardRemove the eight screws indicated by therred circles in below picture.3-7. Remove the Keypad BoardDisconnected the coupler CN1 CN2 CN3CN4 CN5 CN7 J25.Remove the Mainboard.3-8. Remove the SpeakerRemove the four screws indicated by the redcircles in below picture.Take out the speakers.3-9. Remove the Remote ControlBoardRemove the two screws indicated by the redcircles in below picture.Take out the remote control board.Service ManualModel No.: HL55XZK22a12