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Any way to reset after "protection circuitry" is tripped three times on RX-s602

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2 Answers

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  • Audio Player... Master
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Hi Jonny andreassen, for what you say, your Yamaha enters protection mode due to a malfunction in the output tepa
As JonSnell Electronic suggests, you should repair or have the power output stages repaired, you also have to control the connection cables and the loudspeakers, due to the possibility that some are damaged and can generate a fault in the Yamaha
I hope you can solve it
Greetings Franco Dosil

Hola Jonny andreassen, por lo que comentas, tu Yamaha entra en modo proteccion por un mal funcionamiento en la tepa de salida
Como te sugiere JonSnell Electronic, deberas reparar o hacer reparar las etapas de salida de potencia, tambien tienes que controlar los cables de conexion y los bafles, por la posibilidad que alguno se encuentre da?ado y pueda generar una falla en el Yamaha
Espero puedas resolverlo
Saludos Franco Dosil

Posted on Sep 30, 2019

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  • Audio Player... Master
  • 30,686 Answers

Yes, repair the amplifier fault and it will reset.

Posted on Sep 30, 2019

Testimonial: "has disconnected everything but nothing happened"

  • JonSnell Electronic
    JonSnell Electronic Sep 30, 2019

    The output stage in the amplifier has been damaged and must be repaired by a qualified service department.

  • jonny andreassen
    jonny andreassen Sep 30, 2019

    is there no button combination to reset

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6 Suggested Answers

6ya6ya

6ya staff

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SOURCE:

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Posted on Jan 02, 2017

Anonymous

  • 150 Answers

SOURCE: RX-V800 shuts off after 7 seconds turned it on, what should I do?

Can you post that diagram here? Or you can email it to me. I can't make any promises, But Im glad to help, I have done much board work in my time, and this one just sounds interesting. L8R

Posted on Sep 17, 2007

smarthome2

Frank Fulton

  • 1114 Answers

SOURCE: the power kicks off after being on for about three

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 wire. 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 speakers) 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 Jun 13, 2010

AJIN G

Electro Med Services

  • 6694 Answers

SOURCE: my rx-v367 does not power

hi,

AV receivers shows protect mode , when there is a hardware fault in side it. Its a warning that some thing is wrong. Is there is any standby light. If not check the AC fuse.
Normally AV receivers show this when any of the output amplifier get some problem. there are five amplifiers in this AV receiver. May occur when the output diver transistors of any of the amplifier become shorted. if the output transistor get shorted this will lead to flow of current through the speakers. To prevent this there is a protection circuit for each channels. One combined output of this protection circuit is connected to the system control. when the any of the output amplifier fails, the protection circuit detects it and switch of the speaker and sent data to the system control. when the system control get this data it will give a warning to the customer through display that PROTECT.

First of all remove all speaker connections from the amplifier and powerup the amplifier. If the amplifier turns ON then, then any of the speaker have some problem.
If not You have to check the amplifier.
for that you need digital multimeter,soledring iron screwdrivers etc
open the amplifier , then power it on. connect the negative terminal of the multimeter any where in the chase( metal body of the amplifer). then connect the positive terminal to all the output transistors emitter pin one by one . the voltage should be bellow 0.5V. If any of the emitter of the transistor shows voltage more than 0.5V., then that amplifier stage is faulty. Remove the transistors and check it. if it is shot then replace with a new one.
after replacing the transistors do not power up the amplifier directly from the main. You have to put a bulb of 60 watts in serial.
You can do this easily remove the mains fuse. put the bulb in a holder. now you have to wire from the holder. connect one of it to the one end of the fuse holder and the other wire to the other end of the fuse holder. Why using a bulb is, if there is any further problem in the amplifier stage on which the transistors replaced, there is a possibility of the new transistor get damage. if we use a bulb in serial with its mains supply ,when any overload in the amplifier occur the bulb will drop the current, by lighting itself.
After connecting the bulb in serious power on the amplifier. watch the bulb. It should light for one or two second and go dim . if so check the display, is there is protect mode is on or not . if not and come back to normal operation ,then remove the power , remove the bulb insert fuse and check
connect the power and check.
If the bulb shows bright light then there is some component also faulty in the same amplifier. after removing the power you have to check again the amplifier stage of which the transistor is replaced, for any other faulty components.
ok

Posted on Feb 17, 2011

dunnbiker

David Dunn

  • 8546 Answers

SOURCE: how do you reset a

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 root cause for ntermittent shutdown.

Posted on May 26, 2011

claudeinmo

Claude Kayser

  • 9098 Answers

SOURCE: How do I reset Yamaha rx-a4730 it won't turn on just blinks Manual says it is in circuitry protection mode

Yamaha RX-V650 won't power on - Service manual, repair and unlock ...

forum.eserviceinfo.com/viewtopic.php?t=59945
10 posts - ?6 authors Posted: Sat Aug 29, 2009 1:26 pm Post subject: Yamaha RX-V650 won't power on ... When i came back from a holliday, my receiver won't power up anymore. .... isn't powered (no voltage on the base) when the receiver doesn't comes on.

Posted on Sep 12, 2015

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Can you post that diagram here? Or you can email it to me. I can't make any promises, But Im glad to help, I have done much board work in my time, and this one just sounds interesting. L8R

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http://usa.yamaha.com/products/audio-visual/aventage/rx-a1000_black__u/


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 another possible root cause for intermittent shutdown.

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