Wow did this thread save me some headaches! My clock finally completely died so I went to the local "parts garden" and picked up not one but TWO clocks. Neither clock worked! Great now I have 3 dead clocks. After reading this post, I cracked the first one open to discover that 510 had partially come off the board. A little soldering and it was FIXED. I decided to crack the other 2 open to discover that 510 was bad on both. And one also had a loose 300. Wow, whoever was responsible for 510 and 300 soldering at the plant had a bad week I guess
