Power From Bench (PC Engine GT) Updated Mar 15, 2026 · 4 min read · 0 viewing Previous Initial Power Up (PC Engine GT) Start by removing the motherboard with game cartridge board attached. Remove all wires. The power pa... Next 5V Circuit (PC Engine GT) The 9V from the battery comes in, through the F500 fuse, into the Q502 transistor (BJT PNP). N...