Protect Mode

[Toddy]

I have a Harmon Kardon AVR247 receiver and last night as I was watching Pirates the receiver would read Protect and shut off. It haapened when there was a loud noise like a cannon going off. Anyone else experience this.

[Slec]

That does not sound good. usually protect is to keep the receiver from overheating. how long was it on prior to this occurring. With a loud pop, I'm a bit worried you might have blown your receiver. Have you tried turning it on since?

edit... or did it go into protect when a cannon went of during the movie.. might have read it wrong.

[Blu-Dog]

Originally Posted by Toddy

I have a Harmon Kardon AVR247 receiver and last night as I was watching Pirates the receiver would read Protect and shut off. It haapened when there was a loud noise like a cannon going off. Anyone else experience this.

Hope it came back on when it cooled off...

It's a 50 watts per channel receiver, so depending on the types of speakers you have, it may be running at its limit for loud sound. It's rated at 8 ohms - be careful you don't have 4 ohm speakers hooked up to it. Those will smoke your receiver.

What kind of speakers do you have?

[kalkin84]

A receiver goes in to protect mode when it senses and anomoly like a short circuit or, as was said previously, an over heat situation. However, given the loud nosie appears to have caused it i'm thinking wiring fault of some kind. Even if undamaged many receivers will not come out of protect mode unless shipped back to the factory/service center for tinkering.

Try it again, if it will not function properly take it down to the repair man and then consult your speaker wiring to make sure nothing has crossed that shouldn't have.

[sticks4legs]

Is your subwoofer blown, or bottoming out??

If you are overworking your sub, or have the bass jacked so high that the coil can't handle it you may be bottoming out your sub.
You mentioned that it was during a cannon fire, which is something thats going to give the sub a good punch. If it can't handle how you have it set your...Your AVR may pick this up as a short and shut down.
Check this and the above mentioned possible issues.

[Toddy]

Sorry guys, actually the cannon sound was in the movie. I tried connecting all my speaker wires and that seems to have solved the problem. On Harmon Kardons website there is a section that says protect will happen if unit overheats or if speaker wires aren't fully connected. I just bought a Samsung 67" last week and when I was setting it up, I must not have connected wires fully and I guess the protect kept it from shorting out. Wheww!!! Thank God. Thanks for the info guys.

[Rovic]

I had the same thing happend to mine....i connected the new klipsche speakers to it and was listening to some music through the ps3...all of a sudden the sony receiver said procted mode....i turned off and back on and viola...it worked....so i haven't tuned up the volume that high since....i figured it was the loudness....