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Stereo Unit tries to turn on...but then just turns right back off.

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Your sereo is going into "protect" mode to save your speakers because the output stage of your amplifier is shorted. Time for a technician...sorry.

barneyluc

Posted on Oct 03, 2008

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Harman hk570i ultrawideband linear phase stereo receiver turns on but doesnt make sound


Unit turns on but do you hear the speaker relays turn on ? unit might be in protection - if relays are switching on try using unit just on stereo

Jun 24, 2014 | Audio & Video Receivers

1 Answer

Kenwood ka 996 integrated amp. The standby light will dont turn off. I also need to see if someone will tell how everything should be hooked up.


the standby light should be on if the unit is not 'ON' if you want the 894 to turn on when you power up the 996, then you will have to plug the ac for the 894 into the 'switched' ac outlet on the back of the 996
what specific problems do you have with this system

Mar 07, 2013 | Audio & Video Receivers

1 Answer

My stereo sysytem is a mini stereo: serial number 10200055. It currently says "protect", what is this and how do we return our system to normal operations?


Hi there,

When the word PROTECT appears on this display, this means the unit has detected a critical fault which could potentially cause harm to your stereo system.

The most common cause is a short circuit somewhere - something even as simple as loose speaker wiring could cause a short, triggering the Protect message.

You will need to determine if there is a possible short somewhere, so I recommend you start by firstly turning power OFF, disconnecting all speaker wires, then turn unit back ON.

Operate the stereo (without speakers) and turn volume up:
  • If Protect message appears when turning volume up, then stereo unit itself has an internal fault
  • If no Protect message appears, then suspect the speakers may be causing the issue.
  • Reduce volume and turn unit OFF
Re-connect speakers (ensure the connections are secure), turn unit ON:
  • If turning volume up triggers the Protect message again, there is an issue with the speakers or connections

Hope this helps.....

Sep 04, 2011 | Kenwood Audio & Video Receivers

1 Answer

I think some wires tuched in the back of the stereo and a fews blew and i replaced it now when i turn on the reciever it ses "protecter" accross the l.e.d. Screen how do i fix this ?


Did you try resetting the unit to defualt settings? Turn the unit off, then press and hold the on button for five seconds. The unit will reset automatically. Not sure about this but it's worth a try. this will also reset any custom settings you have stored.

Jun 13, 2010 | Sony STR-DE897 Receiver

2 Answers

Sony str-de835 in protector mode


The most common problem found on FixYa for Audio Video2_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.

Jun 04, 2010 | Sony STR-DE835 Receiver

1 Answer

Error code - protector


Try disconnecting all the speakers from the back and turn the unit back on. If the "protector" display goes away, turn the unit back off and reconnect one speaker. Turn it back on and check for "protector". Repeat.

If you find that one of the speakers causes "protector" to appear, you either have a bad speaker cable or bad speaker. Try swapping each of those out to see what happens.

Apr 20, 2009 | Sony STR-DA90ESG

1 Answer

No volume


bEFORE i CAN HELP YOU I NEED TO KNOW WHAT 'UNIT' MEANS. IS IT A STEREO RECEIVER OR WHAT. WHENEVER I TURN ON A STEREO RECEIVER AND HAVE NO SOUND ITS USUALLY POINTS TO THE FUSES IN THE BACK. ONE OF THEM IS BLOWN. IT COULD BE THE SPEAKER CONNECTION BUT I DON'T KNOW WHAT KIND OF UNIT IT IS.

Apr 10, 2009 | Denon DRA-685 Receiver

1 Answer

No Sound


well, if it powers up, youve still have hope// check and see if you can see a fuse holder at back of stereo... or go to a radio shack or electronis place and get whats called 'contact cleaner' ( may go by a different name, make SURE you know that the salesperson knows what your talking about..PS.you dont have to buy the pricey stuff, but dont get the cheapest either.) then UNPLUG stereo, make sure its not hot ( dont have it on for a long time before working on it) then pull out the knobs on the front ( the volume,left/right,etc) spray a LITTLE bit into the stereo where the plugs go.dont drench it, a little goes a long way) after spreying it in, turn the knob back and forth so it gets to all the points.... make SURE its dry before plugging it back in, you can tell if you see any moisture where you sprayed.( another reason, not to spray much) i usually let my stereo and tvs dry over night before trying them.while your waiting, may as well take a cloth and clean the face, get any cruddies off... good luck

Mar 12, 2007 | Kenwood VR-405 Receiver

1 Answer

Denon AVR-2106 troubles


If the surround back is turned on,on the receiver,then the 7CH stereo will activate the 2 rear,but if it's off on the receiver the 5CH on the remote will do the same. I don't know much about the unit changing from 7CH to game,rock Arena etc.that i know will happen if u press the DSP simulation found @ the 3rd. top right button on the remote.

Jan 16, 2007 | Denon AVR-2106 Receiver

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