Yes, this problem came out after a lightning storm. What I really need is to know the exact part number and from there I can fix this board. The 4013 flip flop, 4028 bcd to decimal decoder, and the 4030 xor gate are all cheap to replace and easy to test off board but if the busted part is not the correct one, then this board won't function as intended. Hopefully somebody, somewhere, has this same unit and would be able to share the info that I need about this IC. By the way, I tried a search for San Long Hun but came to a dead end. It seems that this company does not exist anymore.