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Does anyone have access to Onkyo service manuals? I have the TX-SR803 on the bench and I am trying to track down the source of interference on it the that can be heard from the speakers. Any assistance would be appreciated.
Thank you for your reply.
I thought it was a long shot on the manual but worth a request. I tend to agree with you on the comment about some of the caps needing replacement. The area of focus will be the digital (coax) input processing. The stereo inputs do not seem to exhibit the problem. The output from the digital source when the unit is first powered on is very choppy or non existent after it has had time to "warm up" about 30-40 minutes the problem disappears.
A further update. The problem is not as easy as it first sounded. The digital board seems to be OK, I did find a cap on the board it connected to that was leaking. The rating was .22 F 5.5v had to order one none in stock so I have to wait on that. While looking around at the inside of the unit noticed a ribbon cable that had a brown tint -not original. The heat-sink below it was about 155 f some further investigating appear to be in order.