Well, pretty confident I found the problem.
I decided to start tonight by doing a basic continuity check using the multimeter of the two tracks on the PCB with the obvious solder work. Those checked out ok so I figured what the heck, go ahead and check em all. Glad I did because where this break was and how close it was to the edge of the PCB made it very hard to just see. Once I got the open indication I started poking around in there with a flashlight and then it became pretty obvious. The track that is complete separated leads back to Pin 10 and is the 12V to all the gauges so certainly makes sense.
Took the time to test all the bulbs too with the 9V battery and those were all good.
Unfortunately, since the gauges all worked before I think I get the dumba$$ award here. I must have snagged the PCB on something and broke the tracke while re-installing it.
__________________
Jimmy
www.firebirdgallery.com
2002 WS6 M6 Trans Am - original owner
1973 Trans Am 455/4-speed
1971 Formula 400/400
1969 GTO 400/400 - 3rd owner
1968 Firebird Convertible 350/200R4
POCI - AAC