Procedure
- Connect Input-7 to Pin-1 (Input & Output) of ICBase-2.
- Connect Input-6 to Pin-2 (Input & Output) of ICBase-2.
- Connect Pin-1 (Input & Output) of ICBase-3 to Pin-3 (Input & Output) of ICBase-2.
- Connect Pin-2 (Input & Output) of ICBase-3 to Pin-1 (Input & Output) of ICBase-3.