i've got 1 board out and i'm getting weird readings on the corner transistor, so i removed it. pads on the card are fine so i just want to replace it and eliminate it from the items that could be bad. i have already gone and done point to point measurements on the card and it seems to be good otherwise.
alright, well after getting new parts in, pulling the old transistors off, cleaning the board and then testing all the resistors before reinstalling the new components I found that there were resistors on the board that were shot. is there a way to get those driver cards you had made any longer?
as an experiment, i cut through the 2 board resistors that were bad and installed 1/2 watt axial pieces. Dropped the board in and that channel now has both offset and bias control. looks like i'm running with those as replacements for now, just gotta secure them better and then test some more.
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