45Lenovo ideapad 320-17AST/ideapad 320H-17AST/ideapad 320L-17AST/ideapad320R-17AST/ideapad 320E-17AST/ideapad 320-17ABR/ideapad 320H-17ABR/ideapad 320L-17ABR/ideapad 320R-17ABR/ideapad 320E-17ABR1080 Fan assembly and Heat Sink assemblyFor access, remove these FRUs in order:• “1010 Optical drive” on page 33• “1020 Base cover” on page 34• “1030 Battery pack” on page 37• “1040 PCI Express Mini Card for wireless LAN” on page 39• “1050 DIMM” on page 41• “1060 Hard disk drive” on page 42• “1070 Speakers” on page 44Figure 8. Removal steps of fan assembly and Heat Sink assemblyRelease the cables from the cable guides in the direction shown by arrows 1.aaWhen installing: Route the antenna cables along the cable guides. As youroute the cables, make sure that they are not subjected to any tension. Tensioncould cause the cables to be damaged by the cable guides, or a wire to bebroken.