Onkyo Integra A-809 input selector switching by itself
Hi, My Onkyo integra A-809's input selector will start randomly switching between input selections. Sometimes it does it very rapidly, and sometimes it works just fine. I'm thinking it must have to do with some interference with the infrared sensor but am not sure. I tried covering the infrared window on the front of the amp but that doesn't work. Any ideas? Should I open up the amp and try and cover or shield the sensor directly? I don't ever use the remote so it wouldn't matter if the sensor was completely blocked.
I'm going to assume that your input selector knob just turns and turns, with no stop. Correct? If that the case, you have what's called a Rotary Encoder, which is most likely bad; the very kind of Encoder is used for your volume control. This is not something you can easily fix. It provides inputs to your display microprocessor IC(one of the computers in your unit) It can also be the microprocessor IC, and an input switching control IC. Neither are DIY repairs. If you'd like more information, or would like inquire about repairing your unit, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.
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The Integra DPC-8.5 changer (as opposed to the DPS-8.3 single-play unit -- not sure which you have, as you mention DPS-8.5, a non-existent model) and most of the integra line of players, will sometimes be thrown into brainlock by out-of-step shutoffs. They will usually respond to the Integra/Onkyo instruction manual's directions to turn it off (you're already done that), then unplug the power cord from the back of the machine, wait a few seconds (make it 30 to be safe), then plug it back in and turn it on via the standby switch. The screen should display its welcome message, cycle through startup, and being working again. It is very much like rebooting a PC. In fact there is little difference.
If this doesn't work then something has gone wrong inside and probably has nothing to do with your shutdown method on the way out the door. These things do happen. Hopefully by now you've already figured this out. If not, give it a try. It usually works.