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Topic: STR-DG720 "Protect" mode
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Joined: Aug 24, 2008
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I recently bought a STR-DG720 and I didnt get any problems watching a movie but until this morning when I turn the volume high 30-40 or the movie gets to a part where its loud the audio shuts off and reads PROTECT. Thanks for taking your time to read this.
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Joined: Mar 28, 2005
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Often receivers go into 'protect' mode when there is a short in the wiring or a bad speaker. While this could be the case, if it only occurs when you turn the volume up, it could be because of a miswiring issue, or because you are simply overdriving the speakers you have and the receiver can't handle things.

The speakers should be 8ohm speakers I expect and there should only be one speaker hooked up to each terminal of the receiver. If you are doing anything funky with wiring or speakers, then that would be my guess as to your issue.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.
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Joined: Aug 24, 2008
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The speaker wires i got are 12AWG and they are a bit big for the receiver so I kind of cram it all in.. what should I do?

http://img178.imageshack.us/img178/3980/p1050963ab0.jpg
[Edited by littlenlnga on Aug 24, 2008 at 9:04 PM]
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Joined: Mar 28, 2005
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Having that gauge speaker wire with that receiver is like putting a Ferrari engine in a Pinto - it's not just overkill, it's an issue in reliability.

You need to go back to the 12 gauge wires and cut about half the strands off and cut all the cabling cleanly so that they fit entirely inside of the spring connectors of the receiver. As a guess, at higher power, you might get arcing of a spark between the wires because of how they are currently connected.

Ditto on the speaker side of things.

Take the wires, cut them cleanly. Cut away the white rip cord inside the wire with scissors nice a close so that it isn't hanging out. If possible, try to use wire strippers.

http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=360-634

A single frayed wire, getting to close to another could bring everything down, so you want to clean things up a bit. It may take an hour or two to accomplish this, but it may keep this from occurring in the future.
AV Integrated - Theater, whole house audio, and technology consultation during the build and installation process in the Washington, DC metropolitan area.
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I have the same stripper but I thought that if I took 1/2 of it off it would affect the speakers. Thanks I'll go do it right now!
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