Question about Onkyo TX-SR503 Receiver

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Amp Protection Mode

My Onkyo HT-R530 is in amp protection mode. Onkyo does not have an authorized service dealer in the Dallas/Fort Worth area and suggested I ship it to their regional service center in Michigan. Before I do that, I would like to know if this is just a fuse that I could repair myself. Thanks, Blake

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  • C-buzzie Nov 16, 2007

    it turns on for about 3 seconds and turns back off

  • Anonymous Aug 16, 2008

    amp protection mode

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  • 81 Answers

No, your output transistors maybe 2 of them are gone or the small power supply that feeds the other circuitry has become defective.

Posted on Dec 15, 2006

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Posted on Jan 02, 2017

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1 Answer

Onkyo ht-rc180 standby light blinks will not start.i tryed factory reset, still blinks


The amp protection circuit has been activated. Remove the power cord from the wall outlet immediately. Disconnect all speaker cables and input sources, and leave the AV receiver with its power cord disconnected for 1 hour. After that, reconnect the power cord and reconnect an input and a pair of speaker wires onto the unit. If the receiver still does not turn on than you will have to bring it in for service. Turn up the volume and if the receiver doesn't shut down, power off the receiver and add another pair of speakers. Power up the unit again and turn up the volume. If it doesn't shut down, power off the unit again. Now connect all your input sources and turn on your receiver. If the unit shuts down again, your unit will need to be further serviced at an authorized Onkyo service center.

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I have an Onkyo Tsxr 577 amp. The wires on the speakers crossed and the amp stopped working. It might be in autoprotect mode and I don't know how to reset it.


The amp protection circuit has been activated. Remove the power cord from the wall outlet immediately. Disconnect all speaker cables and input sources, and leave the AV receiver with its power cord disconnected for 1 hour. After that, reconnect the power cord and reconnect an input and a pair of speaker wires onto the unit. If the receiver still does not turn on than you will have to bring it in for service. Turn up the volume and if the receiver doesn't shut down, power off the receiver and add another pair of speakers. Power up the unit again and turn up the volume. If it doesn't shut down, power off the unit again. Now connect all your input sources and turn on your receiver. If the unit shuts down again, your unit will need to be further serviced at an authorized Onkyo service center.


To obtain service, take or ship your Onkyo product to an Onkyo Authorized Service Center. Please also include in any mailing a contact name, address and telephone number. Please include a copy of the original sales receipt/invoice as well as a letter stating what the problem is, with your name address and phone number so the service center knows who to return the unit to. Please note, before shipping, you must contact the authorized service center to inform them that you will be sending your unit in for repair.

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Amp goes to protection mode. if the fuse is too small?


Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. . Double check all connections. Good luck.
A thumbs up would be greatly appreciated if this answer is helpful to you. Worth fixing.
amp-goes-protection-mode-fuse-small-yyiigz0vif4kye35rdc5kjb1-5-0.jpg

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1 Answer

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Protection mode is engaged when a problem is detected internally. Unless you have crossed the speaker wires, the problem is likely to be a defective component or two inside the amp. This is a relatively common fault for all amplifers at one time or another. The typical cause is shorted output transistors. These parts cost anywhere from $5-$15 each and are replaced in pairs. The best thing to do here is to get a detailed repair estimate from a local repair shop ($50 or so) and report the results here. We should be able to walk you through the actual repair with that info in hand. Dan

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The HT-R510 unit's overheat protection kicked in


Hey there..Sorry.When the amps are over powered they blow the main circuit and short causing the amp to turn on the right back off to protect mode.That you will have to send in to get fix..Look behind the amp and see if theres any wires touching or grounding out.My favorite amps are from onkyo and believe me i've done this a few times to 5 aps I've had.So I up graded to the tx sr 906 It rocks and will blow every speaker I have before the amp will go..Hope this helps you and good luck..Have a great day...

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589

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Make shure your speaker wiring is solid hookup to amp and spekers (NO CROSSED WIRING). Also make shure speakers are not wired in parallel or the speaker impeadance will be to low and amp will kick out.Turn speakers off then hook up headphones and crank up volume then see if amp kicks out.If it does you have an internal overload and needs serviced. If it playes ok then you must have speaker problems or wiring.
GOOD LUCK
BIGREDl

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If bought new return immediately for replacement. The amp section is no good and cannot be reset - needs repair. but you are under WARRANTY - use it.

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from LANCE P: I fixed it. Be sure that all your speaker connections are perfect. No element frays that can arc, no +/- problems, no single barely connected wire. My problem was volume sensitve and I evidently had one + wire that was loose in the back. I corrected it and ran it all day with surround and good volume with no problems. So diligently check ALL YOUR SPEAKER CONNECTIONS, both in the back of the unit and at your speakers

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yes,pls.stop plugging the system,you may harm your system if you do so,the system has it's own system analysis mode,and if there's something wrong in the circuitry,it will activate,you need the authorize service center my friend,it's a technical problem.

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