Front Button Board (PC Engine GT) Updated Mar 15, 2026 · 15 min read · 0 viewing Log in or register to read the full article. Previous Audio Circuit (PC Engine GT) Audio amp is NJM2073M , labelled U10 or IC100 , near volume wheel. Audio From 6280 to Amp The au... Next RGB LCD Install (PC Engine GT) The PC Engine GT already has native RGB, so installing a kit that accepts RGB and CSync such as the ...