Question about Onkyo TX-DS494 Receiver

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High pitch squeal when using optic input

I'm getting a high pitch (almost feedback type) noise when using the optic input selector. This has happened when connected to the DVD and cable box sources. It is worse when the receiver is cold and gradually goes away as the equipment warms up. This can take 30 to 60 minutes.

Is this a known problem with this equipment? Or is there a change to the connections that will eliminate the noise?

Thanks for your help.

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SOURCE: Onkyo TX-SR500 Dolby Digital problem

I just read over the problem you were having with your Onkyo TX-SR500 receiver. It sound like the unit needs to be setup for all five channels.Sence your symptom says the diplay shows Dolby D3/2.1. According to the owners manual with the remote control look for speaker setup whin the button is pressed the current speaker setup will be shown in the display. Press the preset/adjustment<> to change the current setting to five speakers. the listening mode will automatically change according to the number of channels you selected. Hope this helps. Radiotech

Posted on Aug 14, 2007

DickCanFixIt
  • 948 Answers

SOURCE: Having problems with HDMI connection

Connect the HDMI outputs on your various components to the HDMI inputs on your receiver. Connect the HDMI output on the receiver to the input on your TV. HDMI incorporates digital audio, so no need to buy optical audio cables. If your receiver does not have HDMI inputs for all your components, you will need to make a choice. HDMI = Best, component video + optical audio = second best, S-video+ optical audio = third best

Posted on Jan 01, 2009

  • 1 Answer

SOURCE: No video throught HDMI output

I have solved this problem. I've managed to get my Sky HD and Playstation 3 to play through the amp. You setup the HDMI inputs in the Input/Output assign. Once you have donew that go to the 'Source Setup' menu, select 'A/V Sync' then press enter as requested, you should then see an image. This worked with me after fiddling around with it for a while but it does work.

Posted on Feb 01, 2009

  • 1 Answer

SOURCE: Onkyo TX-SR606 getting no sound from HDMI sources

Not sure if this is your fix, but I had what I thought was the same problem. I played with my Onkyo quite a bit ensuring the correct assignments for HDMI, audio and all that stuff. Turns out I neglected to make sure the output devices were properly assigned. Many devices aren't default to output sound over HDMI. I changed the audio out settings on the cable box to HDMI and suddenly the Onkyo worked great. I know, I'm an idiot for not checking that in the first place, but maybe someone out there is having the same trouble as well.

Posted on Apr 05, 2009

smarthome2
  • 1114 Answers

SOURCE: 1080P video via HDMI generates awful interference

Your Plasma's native resolution is 720P. Go into the Blu Ray's output setup. you can choose 480p 480i 720p 1080i and 1080p. Set it for 720p that should clear up the issue.You may have to run Component directly to the TV since you only have 1 HDMI input and you can run Digital coax or optical to your AV receiver for audio. On a 50" TV the difference between 720p and 1080p using "GOOD" cables cannot be seen by the human eye. Above 50, yes it is noticeable.
Hope this helps.

Posted on May 23, 2009

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