2 month old ONKYO TX-SR706 speaker circuit problem
Suddenly, the left surround speaker started making a crackling noise, and during loud sounds, the entire receiver would turn itself off. I tried changing speakers, i.e., reversing them, and same problem, eliminating the speaker itself. I inserted a 3 feet speaker wire to this speaker circuit, same problem. I'm about to take to service, but if you have any ideas, please let me know! Receiver is almost brand new! Thanks.
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Re: 2 month old ONKYO TX-SR706 speaker circuit problem
This is a problem with the surround sound processing. Effectively the digital signal is not being processed properly. Since this unit is so new, return it and request either an exchange or at least warranty service. The DSP board will likely be replaced.
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I had this happen to my unit shortly after I purchased it. When I turned the receiver on there was a loud pop through the speakers, the red light on the front started blinking and the unit failed to produce sound.
A tack worked its way through one of the speaker wires, causing a short. I replaced the wire and unplugged the receiver for an hour. It's worked well for the past two years since this issue.
If you haven't done so already, check all of your speaker wires and plugs on the receiver and the speakers. You may have a damaged wire or metal-on-metal contact somewhere. Try these steps:
1. Unplug the unit and disconnect all wires and connections. Let the unit sit for an hour.
2. Check all cords for damage or crossed connections.
3. Reconnect the power cord and set the volume to minimum. Turn the receiver on. If it stays on, shut it off, unplug it and reconnect everything, taking care to ensure that speaker wires and/or plugs don't make contact.
4. Plug the receiver in, set the volume to minimum (it should already have this setting after step 3) and turn it on.
It sounds like there is a short somewhere in either the wiring or the receiver. This caused the popping noise and activated the receiver's protection circuit. If it's a damaged wire or plugs or wires making contact, you can reset the unit with the directions above, replace or separate the wires and all should work. If the issue is within the unit, you'll have to contact Onkyo directly.
I have the same reciever, and had the same problem. Contact Onkyo, this is a known issue where defective DSP chips were used and manifest problems with a popping / clicking sound when using surround settings. These receivers also have a Dolby Digital input issue that can cause audio dropouts when watching cable or SAT broadcasts that encode DD using a 'newer' broadcast encoding methods. Onkyo is covering the cost of that repair for me now, even though the receiver is 5 years old now....
Please add a comment to your previous post next time, it makes it easier to see this post has a relevant history. I had to go check in your profile when I saw the word "still".
Shooting in the dark, and saying the obvious(just bear in mind a month ago I was going crazy over a problem that ended up being the blanace knob turned to the right) - could it be that you're not using a digital signal? I'm not sure you can get surround with analog.
Make sure all settings are for digital, and that you're using a coaxial/optical cable going from the DVD to your receiver.
I hope you'll end up embarassed but happy.
So your saying that you have no rear channel. Some recivers use a single stereo output ic for both sides on the rear speakers. you could have a defect with this IC . Anther thing Im sure you check3ed the obvious ie : the switch is on suround sound? If there is a front to rear fader is it in the middle? Good Luck