Vtg Sony PS-LX250H Automatic Stereo Belt-Drive Turntable System Untested

Have no idea how to work it, plugged in and it hummed but couldn’t figure out how to get on. Unsure so seeing as parts/ repair. The product is a vintage Sony PS-LX250H automatic stereo belt-drive turntable system. It features a belt drive, can play records at speeds of 45RPM and 33.3RPM, and is manufactured in China. It is untested and belongs to the category of home audio components.