Question about Amplifiers & Preamps
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.
Posted on Dec 16, 2014
The solution is quite simple - the electrical contact cleaner.
Posted on Aug 16, 2013
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