Onkyo TX-NR686 Amp "PC" port issue.

Caporegime
Joined
3 Jan 2006
Posts
25,142
Location
Chadderton, Oldham
Probably a few months after I got the amp I couldn't use the PC port any longer, the screen was just constantly flashing, went few a load of HDMi cables and when I eventually tried a different port on the back the issue stopped.

Today the issue still persists, the PC port causes constant flashing, it's not much of an issue as the "Game" port and all others are still working and I haven't got enough appliances to fill them all, but I am concerned if I upgrade in the future it will be worthless.

I bought it in Dec 2019, is it something I just have to live with now? I ended up forgetting about it but it's something I recalled and thought it might impact resale value to the point if I have to upgrade at some point it's either for the scrap or give away. And kind of wondering if the other ports might go eventually.
 
I've tried numerous different HDMi cables, eventually I just plugged the cable into the other ports, all the ports on the back are the same spec as far as I can tell. Every port works fine aside from the "PC" port that just flashes randomly, even sat at the desktop.
 
I've tried everything, making sure UHD Colour is enabled, tried disabling it, lowering resolution, not using HDR, making sure the configuration matches exactly that of the other ports and it still does it.

My TV is a LG BX OLED, previous TV was an NU7400 and the one previous to that an MU6400, all 3 TV's exhibit this flashing, but using any other port it doesn't do it.
 
Well lesson learnt, I just don't like going in a shop and then they're not interested, made me feel more of an inconvenience I recall so I thought bugger them I'll go to Amazon.

Hopefully it'll last until HDMi 2.1 receivers become mainstream and maybe I'll get a couple of quid for this amp for a meals worth or something.
 
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