Question about Denon AVR-1200 Receiver

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Protection mode. HOw do I reset this error message? I am an electronics tech and I can performm any level of repair if you can lead me to the possible problem. THe does not to be any burnt parts inside the Chassis. How can I obtain a service manual? Anselmo

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  • PATSBIKES Nov 17, 2008

    HOW DO I RESET A PROTECTION MODE PAT 1 954 822 3971

  • VIdiot6710 Feb 22, 2009

    Same thing here... "Protection" is displayed on the receiver.  I have seen other receivers that can be reset but I can't find any manuals for this unit.  Any help would be GREATLY appreciated.  Please post or send help to VillageIdiot6710@vzw.blackberry.net .  Thanks!


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Hi, protection mode means either the speaker terminals are shorted or the unit is overheated the manul says fix the short (DOH!) or unblock the vents (DOH!) but if it is really an issue with the microprocessor, then unplug the unit, hold in power and the tape loop buttons at same time and plug back in, wait 15 seconds or so until the display flases about once a second and then release both buttons. I will doublecheck these are the correct buttons, but I am pretty sure (I have the manual)

Posted on Oct 22, 2009

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1 Answer

Protection mode


Try tapping it on the top or sides with your hand or fist, I was told this buy a body of mine, That has been a (Electronic) Tech for over 20 years now, Tap it fairly hard,It has work for me with recievers And amps to get them out of the (Protection mode.What causes them to go into (Protect) Is a short in a speaker lead or the speaker wire come disconected some how,Or there could of been a power surge.

Oct 04, 2012 | Yamaha RX-V1400 Receiver

1 Answer

MY SONY STR-DE698 IS ON PROTECT MODE HOW DO I RESET IT


It gets resolved, not reset.

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.

Sep 12, 2011 | Audio & Video Receivers

1 Answer

Sony STR-DE185 receiver powers up, but then goes into protect mode. what does protect mode mean and how can I get it off protect mode?


"Protect" is what it does when it senses a dangerous condition.


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.

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

Jun 11, 2011 | Sony STR-DE185 Receiver

2 Answers

My sony str-de335 receiver is in protect mode whats wrong what should i do?


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.

Apr 29, 2011 | Sony STR-DE335 Receiver

1 Answer

When you are watching a movie and turn on system it goes into protection mode and shuts off. Also when you are listening to music when the volume reaches a certain level(not very loud) it goes into...


Loose speaker wire somewhere or heat.

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.


Check for loose speaker connections as a root cause for intermittent shutdown.

Feb 26, 2011 | Harman Kardon Audio & Video Receivers

2 Answers

Hi i touch two of the speaker cables together and it turned it off. now when i turn it on it turns it self off after a couple of seconds. is it repairable?


Assuming those speaker wires are no longer touching, you probably blew it up.

Generally speaking, an amp protects itself from heat, shorts and overloads by refusing to turn 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 03, 2011 | Onkyo TX-SR606 Receiver

1 Answer

Protect keeps flashing


Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

Apr 23, 2009 | Sony STR-DE475 Receiver

1 Answer

Power button is blinking red and it wont turn on


Read your manual and look for some typ of reset in Protect mode and how to reset it, or download a repair manual from on line and that will help all you self tech doers....read closely...ok
Radricktip

Sep 02, 2008 | RCA Audio & Video Receivers

3 Answers

Onkyo tx-sv535


when the apm in protect mode means it is problem in inside.don't trow it please repair it n use

Jan 02, 2008 | Onkyo TX-SV535 Receiver

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