I can't help you directly, but I would suggest considering contacting Integra tech support and/or finding a local repair shop authorized to work on Integra products. I believe there is a shop in the Dallas metro area. I don't know about Philly, but since you appear to be in the N.E. USA, there's a good chance you'll find someone qualified not too far away.Hey guys, I'm new here and have a question about my new-to-me DHC-80.3. I got it for free because it doesn't turn on. I had it plugged in last night and the relays on the power supply board will click at random points. At one point, the unit did turn on and stayed on for about 5 minutes before shutting off and reverting back to the intermittent relay clicking. Has anyone experienced this, or know of a solution to this? I downloaded the service and user manual to try and make some progess.
Since you got it for free, I'd say it's worth considering. I would not spend more than $400 on it (total, including shipping back and forth). Best to call a shop first before you go to any trouble.
If you want a project (DIY), the HDMI boards on the pre-2014 models are notorious for blowing up. I would plan on replacing it and the power board, just to set expectations on cost and effort.
Caveat: I know nothing about your particular circumstances, and I'm not an expert on repairing these devices.