HDMI receiver sound/video problem

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esawers

551 posts

Ultimate Geek

#99139 13-Mar-2012 14:10

Just rebuilt our media centre with the added bonus of having HDMI now

Running Windows 7 64bit
A6 X3 3500 cpu (with onboard liano video)
Asus F1A75-V Pro motherboard

Have this running through an Onkyo 576 receiver

The video works perfectly, until you play something with sound, and then it goes fuzzy like black and white dot interference

Any ideas? Done a bit of googling and see that HDMI can be a PITA..

Edit: It works perfectly when the HDMI is plugged directly into the TV. Tv is a 42" LG LCD

surfisup1000

5288 posts

Uber Geek

#594586 13-Mar-2012 15:10

esawers: Just rebuilt our media centre with the added bonus of having HDMI now

Running Windows 7 64bit
A6 X3 3500 cpu (with onboard liano video)
Asus F1A75-V Pro motherboard

Have this running through an Onkyo 576 receiver

The video works perfectly, until you play something with sound, and then it goes fuzzy like black and white dot interference

Any ideas? Done a bit of googling and see that HDMI can be a PITA..

Edit: It works perfectly when the HDMI is plugged directly into the TV. Tv is a 42" LG LCD

Even before I read this, I was wondering if it would be an Onkyo receiver. I've had HDMI issues with my Onkyo 606.

First you should try another receiver to see whether it is actually a receiver problem.

stevenz

2802 posts

Uber Geek

#594640 13-Mar-2012 16:32

Try swapping HDMI cables about?

Have you got any other HDMI source (DVD player etc) you can try through the amp?

@KnightNZ

Dunnersfella

4086 posts

Uber Geek

#594686 13-Mar-2012 17:34

Some Onkyo's have known issues with their HDMI boards...
Most often, they're caused by hop-swapping, but they also failed without provocation.
Of course, the correct steps are:
Try a new HDMI cable.
Try a new HDMI source (BluRay player or the like).
Try a new amp.

My $'s are on the amp.

esawers

551 posts

Ultimate Geek

#595039 14-Mar-2012 12:44

we have an hd sky box going through the receiver with hdmi, no problems

haven't tried another cable yet, but thought we had ruled that out going through the tv ok?

edit, hmm hope its not the amp, bought it brand new about 3 years ago but only just plugged it in about 2 weeks ago so almost new

esawers

551 posts

Ultimate Geek

#595044 14-Mar-2012 13:01

just saw this post...
http://www.avforums.com/forums/av-amplifiers-receivers/1212190-onkyo-576-hdmi-issue.html

sounds like the cable could be feasible..

graef

28 posts

Geek

#595110 14-Mar-2012 14:36

If you find its not the cable, then it could be something like this:

I just successfully repaired my 576 HDMI board by replacing 6x 100uF capacitors.
Different symptoms but could be a similar cause.
My problem was that the HDMI just stopped connecting altogether.

Gory details at:
http://www.avsforum.com/avs-vb/showthread.php?t=1246078

Graeme.

esawers

551 posts

Ultimate Geek

#607819 11-Apr-2012 13:36

SOLVED!!

It was the cables, I purchased 2 new cables both Category 2 (1080p capable) despite the guy at Computer Dynamix telling me it wouldn't make any difference.
Tried the media centre running at 720p and everything was perfect, so replaced the cable from the pc to the receiver, and the receiver to the tv, changed back to 1080p and its running like a dream.