Question about Onkyo ht-r640 - Av Receiver Ht-r640
Not sure if I should have the S-Video plugged in or just the HDMI. Both are hooked up now. The manual does not specify either way.
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Posted on Jan 02, 2017
This might somewhat help. Today I went back .. I went HDMI out of the Cable box and DVD player into 2 of the TVs HDMI ins. The digital audio out from each, straight to the receiver and things are working ok. All speakers are working OK. Sound isnt as loud or crisp but unfortunately I found no other solution.
Posted on Jan 06, 2009
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
SOURCE: Onkyo TX-SR606 HDMI Input
The problem is the hdmi board in the receiver .they are having trouble with the smd regulator and smd capactors that they are using on the board,they have updated the new boards as i have not got any back when replacing with the new boards. I have replaced at least 35 hdmi boards on this model. If you call Onkyo they will tell you that you have a hdmi board bad and take it to an onkyo dealer.
Posted on Apr 17, 2010
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