Procedure
- Connect Input-7 to Pin-7 (Input & Output) of ICBase-2.
- Connect Input-2 to Pin-1 (Input & Output) of ICBase-1.
- Connect Input-9 to Pin-15 (Input & Output) of ICBase-1.
- Connect Output-8 to Input-9.
- Connect Pin-17 (Input & Output) of ICBase-4 to Output-11.
- Connect Pin-8 (Input & Output) of ICBase-3 to Input-2.
- Connect Pin-1 (Input & Output) of ICBase-4 to VCC Port.