Onkyo 906 - HDMI Board Failed !

adnank77

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Jul 7, 2013
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So one fine day, all HDMI inputs and outputs stopped working !! The receiver is powering on and the front screen is displaying info .. but no signal to TV .. I've run accross some forums and it seems that it's a common problem with quite few Onkyo models ..
The fact that the problem appeared after 4 years of use is supposed to be a good thing as some people got it much earlier ..

I can't afford a new receiver now .. my only option is to connect all HDMI's directly to the TV then return the audio back through fiber cable to the same receiver ..

Just wanted to share the experience .. very sad moment to see such an expensive box fail .. :|
 

Subyman

Moderator <br> VC&G Forum
Mar 18, 2005
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Happened to me last week, I've got a two year old nr509. I'm looking for a replacement board. Couldn't be too hard to replace.
 

adnank77

Member
Jul 7, 2013
125
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Happened to me last week, I've got a two year old nr509. I'm looking for a replacement board. Couldn't be too hard to replace.

I saw some Youtubes on how to fix the board by replacing capacitors .. Personally I'm not welling to go that path .. I'll just downgrade to optical .. can't afford any additional investment these days ..

One more thing too .. if HDMI board failures is common on Onkyo, then why replace the board and get exposed to the same probelm again ?? Who said we'll get lucky and survive long ? might happen again in no time and investment will go bust ..
 

Railgun

Golden Member
Mar 27, 2010
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There was an era where that happened across their range. I've got a 5008 and a similar thing happened (albeit more debilitating). All the newer gear supposedly has this resolved.
 

Fallen Kell

Diamond Member
Oct 9, 1999
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It was the age of bad capacitors from China, where a Chinese firm thought they had stolen the electrolytic formula from a Japanese firm and started mass producing capacitors, flooding the market with their cheaper knock-offs. Unfortunately, what they had stolen was not the right formula for the solution, which lead to hydrogen gas buildup within the capacitor's can, leading to rupture of the can's seals, leakage of the electrolytic solution, and in some cases, shorting the connections over the capacitor and other components nearby. Everything that was made with these capacitors failed after some extended use. Heat played a big part as to how fast the hydrogen gas would be generated within the capacitor, as well as the length of time the component was powered on as the hydrogen would be able to leak, or be re-adsorbed if given time to rest, lengthening the time it took for catastrophic failure. Replacing the caps fixes the problem. Using a replacement board with correct caps, fixes the problem as well.
 

Number1

Diamond Member
Feb 24, 2006
7,881
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So one fine day, all HDMI inputs and outputs stopped working !! The receiver is powering on and the front screen is displaying info .. but no signal to TV .. I've run accross some forums and it seems that it's a common problem with quite few Onkyo models ..
The fact that the problem appeared after 4 years of use is supposed to be a good thing as some people got it much earlier ..

I can't afford a new receiver now .. my only option is to connect all HDMI's directly to the TV then return the audio back through fiber cable to the same receiver ..

Just wanted to share the experience .. very sad moment to see such an expensive box fail .. :|

You will only get stereo sound this way. It's better to run the optical or coaxial audio cable directly from the component to the receiver and the HDMI cable from the component to the TV. The drawbacks are more cables, no support for the HD audio formats (Dolby TrueHD, etc) and you might need to reprogram your Harmony remote.
 

tyanni

Senior member
Sep 11, 2001
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The hdmi board on my 807 failed, and Onkyo repaired it. Receiver was long since out of warranty, and it was refurbished to begin with. No cost to me. I just emailed support, explained the symptoms, and they had me bring it into a local authorized repair site.
 

Railgun

Golden Member
Mar 27, 2010
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Onkyo USA did a lot to their customers for these issues. In the UK, it's like they never heard of it and once you're out of warranty, you're pretty much sol.
 

richardycc

Diamond Member
Apr 29, 2001
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contact Onkyo, supposingly they know about the problem and will repair it free of charge even after warranty expired. you have nothing to lose.
 

adnank77

Member
Jul 7, 2013
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So I contacted Onkyo, and they guided me to a way to hard-reset the Receiver ..

When I wanted to try it .. I found out that the damn thing doesn't even power up anymore (before trying the reset) .. seems it was natural death ..

Now my speakers and sub are all OK .. I need a new receiver .. will open a new thread for that ..
 

Railgun

Golden Member
Mar 27, 2010
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Just because it doesn't power up doesn't mean it's totally dead.

The other issue with these is related to the board behind the front panel. Some symptoms would be you couldn't change volume. Some inability to change sources or some would do as you describe. I assume it's still in standby? If so I would suggest that's the cause.
 

adnank77

Member
Jul 7, 2013
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Just because it doesn't power up doesn't mean it's totally dead.

The other issue with these is related to the board behind the front panel. Some symptoms would be you couldn't change volume. Some inability to change sources or some would do as you describe. I assume it's still in standby? If so I would suggest that's the cause.

Well in 4 years of usage I've never seen a slight issue even .. all of a sudden all issues did hit at same time :) ..

I will send it for inspection anyways .. but if repair price is like 70% of a new one, then I will go for new ..