Register and download the manual for free at retrevo.com http://www.retrevo.com/support/Onkyo-TX-SR605-Receivers-manual/id/2526bh742/t/2/
To reset the AV receiver/AV amplifier to its factory
defaults, turn it on and, while holding down the
[VCR/DVR] button, press the [STANDBY/ON] button.
"Clear" will appear on the display and the AV
receiver/AV amplifier will enter Standby mode.
However, this means you will have to reprogram everything - speaker setup, tuner setup, input /output connection assignment - the lot.
In case you need further assistance on this problem, then please clarify the connection setup you are using as I have mentioned at the top.
Please post a comment to confirm if this was helpful.
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