W1jim - thanks so much for this thread! I had a similar issue with my B760 and was able to fix it using your experience and part selection. In my case, it was the ones digit in the frequency display that was misbehaving -- it would only show either a 0, 4, 8, E, or c. The ICs were the same, so I replaced IC2 (9317BPC) on the Display Board with an SN74LS47. My ICs are actually socketed already, which is different than yours.
Now I just need a new Signal Strength meter. Tried banging on it a little, but looks like my indicator needle is actually loose inside and flopping around.
Now I just need a new Signal Strength meter. Tried banging on it a little, but looks like my indicator needle is actually loose inside and flopping around.