Question about Harman Kardon AVR 630 Receiver

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HK AVR 645 7.1-Receiver Turns off when sound starts to come through

I have the HK AVR 645 7.1 receiver. I have never had a problem with the receiver before. I have owned it for about a year, purchased from the HK ebay outlet. I have just moved and have been setting it up again. I currently have an XBOX with cables (for video) and a fiber optic cable (for sound), a blu-ray player with HDMI, a satellite box and a nintendo wii with cables. I had previously been using a TV with HDMI inputs and had no issues, but now I have a TV with DVI. So I purchased a HDMI to DVI cable to run to my TV I have 2 HDMI cables running in. The HDMI to DVI running out to my TV.

First problem is that when I try to turn my Blue-ray player on, the sound keeps swithching on/off. When I go into OSD, the setup keeps switching from HDMI/DVI to Optical every 10 seconds or so and then flips back and forth from HDMI/DVI to Optical and back. Any ideas?

Second (and biggest) problem: When I have everything hooked up, I turn the power on and everything is fine, but when I turn the sound up (even any sound), the receiver turns off. When I turn it back on, the minute sound starts to transmit, it instantly clicks off again. There is not excessive heat, all plugs have been checked and are in securely. Only thing that fixes it is when I take something off…so far, I took off the Fiber optic cable and it worked. Then a few days later I put the fiber optic cable back on, but took off the HDMI from my blu-ray player and it worked. Yesterday, tried plugging everything in again and it shut off again when sound came through…

Any idea what I’m doing wrong?

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Hello, I didn't end up fixing the Blu-ray issue, but the TV issue was caused by just inverting the positive and negative cable going into my speaker. Odd enough, instead of just not working, it just flipped the entire system off. I can definitely see that that could be the issue, another one I thought of is, at the time I didn't realize that DVI doesn't play audio, only video and I didn't have a optical cable connected. I decided to avoid the hassle, sell the TV and purchased one that has HDMI. Muuuuch better.

Posted on Aug 08, 2008

Did you figure it out? I bet your problem is the same as mine NOT HDCP complitant.... its gettting a signal from the bluray that can not be accepted... research HDCP compliant... my ONKYO does the same thing...

Posted on Aug 08, 2008

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Posted on Jan 02, 2017

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