@Mike D posted:If it is just a failed solder joint and the metal isn't actually broken, you should be able to reflow the connection and be good to go. That is how I repaired one of mine. The other one had the contact actually broken in two.
@Trainlover9943 posted:Got it off. Looks like the one for the direction key need to be resoldered as it popped off when I took the strip off.
@Trainlover9943 posted:Fixed. Wonder how that tab got unsoldered?
It only took a little less than 2-1/2 years, but I finally got around to taking another look at it. Broken solder joint on the tab for the direction button. I had opened it up several years ago, but the broken joint was not really visible - had to move the tab to notice it.
Resoldered it and... success! The little screws that hold the spring bar in place are a PITA, but thanks to all the info here I was prepared for them. This was possibly the easiest soldering repair I've ever done.
Thanks to all who contributed to this thread - I couldn't have done it without you.