I am embarrassed to say I have been wrestling with this problem for some time, and am near to giving up. My TIA PCB always outputs high. The bread board version works well enough, albeit with slightly different components. The current schematic looks like:
I have tested each of the lines, and so far as I can tell, they have the voltage I would expect (excluding the output). I have checked for shorts for days now. I can't seem to figure out the cause. Any trouble shooting or design advice would be helpful.