Question about Pioneer VSX-33TX Receiver

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Power comes on and then Power Off displays on screen. Is there a reset or replaceable fuse? Has it gone into protection? I've looked under the hood and saw no visable problems.

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  • rjw333794 Jul 06, 2010

    Thank you for your kind response. Unfortunately, the speakers aren't connected or any other device to the receiver so that's not the issue. I eliminated those variables from the start so I could just check the receiver. Although the receiver turns on and looks normal, it shuts down after a few seconds with the display reading "POWER OFF". It doesn't read protection at any point unless "POWER OFF" indicates it's gone into the protection mode. I'm guessing from your response thats there's no reset available or fuse issue. Any other ideas?

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  • Pioneer Master
  • 1,114 Answers

Try this route first.

The most common problem found on FixYa for Audio Videopower comes on and then Power Off displays on scre - 2_bing.gif Receiver's is:

My receiver say's "Protect" or turns on then off. What's wrong? Seven times out of ten it is a shorted speaker or speaker wire2_bing.gif. To determine your exact problem, the first step is to disconnect all speaker wires "at your receiver" Next: Turn the receiver back on. If your receiver still says "protect" or turns off, it needs to be serviced. If your receiver stays on; reconnect your speakers one at a time and power back up after each speaker. You may find that after reconnecting all speaker wires it works! Most commonly the small braids of wire from the + to the - have touched and have caused the problem. In some instances, you noticed the problem only when turning the volume up. either way, make sure the exposed wires to your receiver are no longer than 1/2" long and are completely under the screw down terminal or slide in. When you've found the wire or speaker with the problem, your receiver will go back into "protect" At this point, disconnect the wire from the speaker at the speaker that may be causing the problem then test again.* Note* Make sure speaker wires do Not touch each other as this Will cause a short! If you turn the receiver back on and it stays on, you now know the problem is in your speaker itself. To test your speaker, you will need a multimeter. Set it to ohms resistance and touch the speaker terminals, if there is a short internally the meter will read "1......" If it's an analog meter, it will peg to the right. There's your problem. Now, within any speaker there are quite a few possibilities as to what could be causing the problem. Most common is a blown coil and the speaker needs to be replaced. Some speakers have internal crossovers (usually floor standing speakers2_bing.gif) and may have a shorted or burnt board (usually very visible brown burn marks on the board) and can possibly be repaired if your handy with a soldering iron. Now, if you disconnect the speaker wire at the speaker and it still says "protect" Check your wire for the obvious cut or nail thru the wire if possible. If your system has wiring that runs behind walls, you may need to use your meter again. Disconnect the wire at both ends, keep the ends separated, put your meter on ohms resistance and touch probes to the + and - wires at one side. If the meter pegs to the right or reads "1...." the wire is shorted and needs to be replaced or repaired at the short. Hope this helps.

Posted on Jul 06, 2010

  • Frank Fulton
    Frank Fulton Jul 06, 2010

    Sorry to hear that it's not an easy fix! It's gonna need to see the Dr.
    Its gonna need several caps and a few resistors, and possibly a chip. If you can, find a shop that will give you an estimate for less than a 100 charge, and if repaired, estimate fee applies to repair. Your repair will probably run from 150-250 depending on the shop and parts cost. If you don't have a "Home Theater" Surge,ie. Panamaxx, Furman, or APC. Get one! it will save all your electronics! Average price: 260-400 for a decent unit. Sorry for the bad news!


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