Board with LCD Screen BF0246
IC1      74HC165D
IC2      74HC165D

Main Encoder Board BF0249
IC1      74HC165D
IC2      74HC165D
IC3      74HC574
IC4      74HC574
IC5      74HC273
IC6      74HCT138  (Under Ribbon Cable)
IC7      74HC273
IC8      74HC273
IC9      74HC574
IC10     74HC574
IC11     74HC574
IC12     74HC574
IC13     74HC165D
IC14     74HC165D
IC15     74HC165D
IC16     74HC165D
IC17     74HC273