Figure I'd update this with a conclusion:
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The reset procedure sent by Ron worked perfectly but did not resolve the issue. Screen would appear to work normally about half the time and then would error out after a few button presses or would error out immediately after booting up the radio. All voltages and tests seemed to be coming back as expected and from everything I could see the radio itself was functioning just the screen was failing. Ron offered to take a look at the radio since I had hit the limits of my electrical troubleshooting skills so I shipped it off to him for inspection.
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He found the exact same issue as me, testing seemed to show no issue but the screen kept failing. VFO was confirmed as working and tuning, button presses, processor, oscillator were all functioning with no faults, the screen signal isf getting dropped somewhere between the processor and actual LCD. He tried replacing the processor, screen, and control board combinations which still did not resolve the issue and allowed further testing to confirm signals and voltages were all correct. I think the only thing we didn't test between the two of us was the actual binary signals getting sent to the screen but that should have shown up in one of the other tests or replacement items that Ron tried.
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So seems like I got a faulty board or failed in a very unique way during assembly. Ron was super generous and offered to send me a spare QCX he had on the shelf which I now have set up and running which I'm super excited about. Will take a while for me to be fluent enough at morse code to send signals to you all but hopefully will be able to connect with everyone in the near future.?
