Question about Sony STR-DE835 Receiver

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"protected" Receiver powers up & then shortly after the "protected" word comes on the display. Is there some way I can fix this myself????

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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.

Posted on Jun 24, 2009

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IT KEEPS GOING IN PROTCTEC MO AND WONT STOP

Posted on Apr 08, 2011

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1 Answer

The word PROTECTin display


Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on; or it may turn on but produce no audio to the speakers.

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 'nekkid'. 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.

Check for loose speaker connections at the speaker as another possible root cause for intermittent shutdown.

Nov 11, 2011 | Teac AG-D9100 Receiver

1 Answer

My receiver is in protection mode how can i fix the problem myself as i can't get a tech out and can't watch any tele. I've tried turning off from power and switching back on but does the...


It may be sensing shorted circuits in the power amp section, shoprted speaker wires, for now you can try unhooking ALL the speaker cables first to see if it will come on OK. If not, you have serious problem that will need in-depth troubleshooting.

Aug 13, 2011 | Yamaha RX-V663 Receiver

1 Answer

When i switch on my sony str-de375 receiver displays one or 2 lines then displays 'stereo PROTECT' & stops there.


Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance 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.

Aug 02, 2011 | Sony STR-DE375 Receiver

1 Answer

TX-8211 FM Stereo/AM Receiver Display changes to PROTECT & shuts the power


Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance 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.

Mar 19, 2011 | Onkyo TX-8211 Receiver

1 Answer

Sony STR-D965 display flashes protector. how do i fix?


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 25, 2011 | Sony STR-D965 Receiver

1 Answer

My receiver displays 'OVERLOAD' all the time when I switch it on and does not work at all.


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 11, 2011 | Technics SA-DX1040 Receiver

1 Answer

When on the stand by button on display come and display showing protect how do i rectify the protect mode?circuit diagram?


protect mode comes on generally when speaker have shorted. disconnect the speakers & try. If it powers on properly try one speaker at a time till you find out which speaker is causing the problem

Dec 23, 2010 | Denon AVR-2800 Receiver

2 Answers

How do I reset from the amp protect mode Onkyo receiver TX-SR600?


How do I reset my amp / receiver from protect mode ?

May 07, 2010 | Onkyo TX-SR605 Receiver

1 Answer

The word protector is displayed


If protect is coming up on the display, it means the system is detecting a short somewhere on one of the speakers and so is turning the amp off to avoid damage.
Check all the connections at the back of the amp to ensure they are not shorting, and at the back of each speaker, if nothing is found there, check each wire for damage (like squashed or rodent damage).

Mar 06, 2010 | Sony STR-DE705 Receiver

1 Answer

My onkyo receiver say protect


If protect is coming up on the display, it means the system is detecting a short somewhere on one of the speakers and so is turning the amp off to avoid damage.
Check all the connections at the back of the amp to ensure they are not shorting, and at the back of each speaker, if nothing is found there, check each wire for damage (like squashed or rodent damage).

Jan 29, 2010 | Onkyo TX-8011 Receiver

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