... press ZOOM key on PSP cable, and the picture will switch to full-screen display; ZOOM Key: Enter game picture, ... press ZOOM key on PSP cable, and the picture will switch to full-screen display; press it once again, return ... to normal display.1 x PSP to HDMI converter 1 x PSP Cable 1 ... use , such as EU, UK ,AU,US ) PSP To HDMI 720P Converter + Cable + Power Supply#2