Hi Matt and welcome to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.
Initially, have you considered / tried a REST ?
Sorry typo, a RESET.
A reset is both a test and a try of a fix. As it implies, a reset would force the unit to revert back to factory defaults removing glitches and config errors but would include memories, presets and user preferences. After a reset, the initial setup would have to be performed.
That a reset was not corrective would point to an internal hardware concern.
Are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter and even a soldering iron?
I understand Matt.
I was reviewing the repair / Service Manual as well as my old repair notes. This particular model has known issues with voltage regulation and/or the digital HDMI circuits.
At this point, 3rd party repairs (or replacement) if not a DIY would be the only options.
Please post back how you would want to approach this and/or should additional information be needed.
Yes; will continue the review of the Service Manual.