Procedure
- Connect Output-13 to Pin-2 (Input & Output) of ICBase-1.
- Connect Input-14 to Pin-1 (Input & Output) of ICBase-1.
- Connect Pin-7 (Input & Output) of ICBase-2 to Pin-7 (Input & Output) of ICBase-1.
- Connect Input-10 to Pin-2 (Input & Output) of ICBase-2.
- Connect Pin-7 (Input & Output) of ICBase-3 to Pin-7 (Input & Output) of ICBase-1.
- Connect Output-9 to Pin-3 (Input & Output) of ICBase-2.
- Connect Pin-3 (Input & Output) of ICBase-3 to Input-4.
- Connect Input-4 to Pin-2 (Input & Output) of ICBase-3.