I've got an f-14 I'm finally getting together, and I've run into a bit of a roadblock. It boots, and displays fine, but I can't get the first lamp column to light. I've replaced everything back to the 6821 PIA. I have continuity from the plug to the lamps. I have continuity between all parts on the board. The only thing I can think of is maybe the board is the wrong generation. It's an 11a, which means it's a straight 11 board but with LEDs for diagnostics. The part number on it is still for the 11. Is this my problem?

Never mind. The problem was a bad resistor soldering job. Measured fine when you pressed on it, but not good otherwise.