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My protect light keeps coming on need help on what to do

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Check the audio amplifier IC´s

Posted on Nov 04, 2008

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1 Answer

Going to protective mode with load sounds, why?


Sounds like a speaker going bad or being over-driven.

Feb 28, 2013 | Integra DTM-5.3 Receiver

1 Answer

Receiver keep shutting off,power light goes off,tried rebooting but after about 20 seconds the power light goes out again


Try resolving the reason it's self-protecting.

Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.


Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Feb 27, 2011 | Directv Audio & Video Receivers

1 Answer

Recvr keeps shutting off and power light keeps flashing. Unhooked the speakers & it still keeps doing it. Tried to go in test mode & still keeps doing it. Please help


Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn on or stay on.


Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.


You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.


If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.


If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

Feb 08, 2011 | Kenwood Audio & Video Receivers

1 Answer

The word "Protected" keeps coming up on the


When the word protect comes on it means there is a load problem, first! turn off the receiver, next remove all wires and speakers. Now turn the unit back on and make sure the volume is turned right down, this will reset the processor controller ic, if the word protect stays off it means there is a short in wires or one of the speakers. on the other hand if the word protect comes on when the receiver is switched on "without wires and speakers" you have a short in one or more of the audio output ic's in the receiver that will need a tech to correct.

Jan 25, 2011 | Sony STR-DB830 Receiver

1 Answer

My reciever keeps flashing the word protect what can be done


Protect is the amp's way of saying it is protecting itself from trying to deliver more current than it can. First step is to disconnect the speakers. Have no input signal present (volume all the way down) so it is not trying to put out power. If the protect indicator still comes on, the amp has an internal short or problem and needs professional help. If the indicator does not come on, then you have an issue in your wiring or the speakers. Reconnect one at a time or get new cables and try again. Good luck.

Oct 22, 2010 | Teac AG-790 Receiver

1 Answer

It keeps blinking protetor


The protector circuit protects your amplifier from shorted speakers . One of your speakers , or more speakers are shorted out . To figure it out easily follow these instructions . Turn the unit off . Now unplug all of the speaker wire connections from the back of the unit . Turn the unit on . Make sure the volume is turned all the way down . The protector light should not light up . If it does , the problem is inside the unit itself and we'll have to be repaired at the shop . If the protector light is off than continue on as follows . Connect the speakers one at a time to the unit . Each time you connect a speaker , turn the volume control up and back down making sure the protector light does not come on . When you connect the bad speaker , the protection light should come on . Whichever speaker makes the lights come on when connected is the bad speaker and should be replaced .

Oct 21, 2010 | Sony STR-DA2ES 6.1 Channels Receiver

1 Answer

Keeps flashing PROTECT when switched on


Check all of your connections very carefully. If all seems well, disconnect one wire at a time, then power on after each wire is disconnected. Alternate between power off (remove a wire) then power on. If the PROTECT comes back on, reconnect the one wire and then power off. Disconnect the next wire, power on, and see if the PROTECT comes back on. If so, reconnect that wire and continue until all of your wires are checked. If at some point after disconnecting a wire and powering back up, the PROTECT does not appear, that wire you just disconnected is the culprit and needs to be replaced. Even a single strand of speaker wire crossing to another opposite polarity (speaker wire) or input can cause a fault making the receiver "PROTECT" itself. Although it may be tedious, it is effective to trouble shoot this way for the first step. If you want disconnect all wires from the receiver and then power on to see if it does it independently of any other connections. I hope this helps and good luck. Please vote 568462d.jpg below if this is helpful.

Oct 30, 2009 | Sony STR-DE345 Receiver

2 Answers

"protected"


First, disconnect all speaker wires from the unit and power it back up. If it does not go into protect. post a comment and I can walk you thru troubleshooting. If it goes into protect, it needs to be serviced.

Jun 24, 2009 | Sony STR-DE835 Receiver

1 Answer

Audio protect keeps turning off my receiver (sony STR-DE597)


That is the common symptom of the defected STK-IC in power amp.section that busted already or just a loose connection.First try to resolder the pins of STK-IC and also all component parts joint in power amplifier section if its works! if not that is the time you replace it, so it works normal again.

Hope it may helps you...

Jun 08, 2009 | Sony STR-DE597 Receiver

1 Answer

Onkyo TX-SR575 I bought this unit at a flea market. Comes with everything including the manual except for the remote control. Manual is somewhat difficutl to understand. Stand by red light keeps...


The unit is in protect mode. The outputs are fried in all likelyhood. This can be repaired. Figure on $5-$15 for parts plus the local labor rate for the total repair cost.
Dan

May 21, 2008 | Onkyo Audio & Video Receivers

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