Read Sharp PN-Y475 Service Manual online
PN-Y325/PN/Y425/Y475/Y555 DISASSEMBLY AND ASSEMBLY (PN-Y425/Y475/Y555) 7 - 13
5) Remove a bezel.
6) Remove a screw and remove LED/KEY PWB.
Click on the first or last page to see other PN-Y475 service manuals if exist.