Integrated Circuits Used 74LS86 Procedure Connect Pin-7 (Ground) of ICBase-2 (74LS86) to GND Port.Connect Pin-20 (VCC) of ICBase-2 (74LS86) to VCC Port.Connect Pin-3 (Output) of ICBase-2 (74LS86) to Output-6.Add IC 74LS86 into ICBase-2 (74LS86).