Question about Onkyo TX-SR803 Receiver
Sometimes this amplifier will switch by itself from cd to tv to etc., etc. without being directed to. It will play uninterrupted at times for and hour or so and then "go crazy". Other times it will only play a few minutes before switching from input to input. We think we have eliminated potential problems - such as over heating (it is not) and have pulled some inputs to see if they were a problem - they weren't. Do you have any ideas?
I recently had an extended episode solving a distortion issue with my Onkyo A-807. I also asked my repairman about the spontaneous switching of the output selector. He told me the output is managed by a motor driven selector located in the back of the unit, not where the dial is, so I don't expect cleaning the contacts at the knob to help. The idea of protecting the remote cable, if you use it, seems more plausible. The contacts at the knob are very difficult to access, and according to my repairman, the motor is in a sealed compartment - so I think remedies other than protecting the remote cable will be difficult.
Just FYI, my distortion problem was from the record selector position "Source". It goes away when the selector is in the "Off" position, or when I disconnect the cable going from my CD recorder to the DAT "REC" jack in the back. I spent a lot of time and money figuring this out. I suspect it is an issue with more than just my unit. If you don't have anything plugged into the DAT jack, or leave the record source on off , you'll never notice this and enjoy a happier listening experience.
Posted on Apr 24, 2010
Use Deoxit on the switch. It is a contact cleaner available at Radio Shack and Fry's. Exercise the knob well. It worked for me on my newly acquired Onkyo A809.
Posted on Jul 30, 2008
Disable wire from back of the selector motor which has four wire ribbon (Jumper 211) for the A809. Something wrong with logic chip which control the motor. After that it works fine on my A809.Hope this will help.
Posted on Sep 21, 2010
I have had this switching problem on my Onky Amplifier Integra A-807 with only 5 years of usage. Apart from that the tape deck, Onkyo TA-207 would start recording on a protected tape at odd times once the amplifier switches on.
So, sorry that I have not a solution for this, but I wonder, is not Onkyo a good HI-FI brand?
Posted on Dec 27, 2009
I had this problem with the Onkyo A809 just rec'd from ebay. I used Deoxit contact cleaner on the input selector switch and exercised the control well. The problem disappeared. Deoxit is sold at Radio Shack.
Posted on Jul 30, 2008
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