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Onkyo subwoofer.. repair shop says power supply and output stage need to be re soddered.. wil cost 135$.. does this sound right?

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Posted on Jan 02, 2017

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SOURCE: Onkyo Subwoofer Pre Out Problem

May not necessarily be the out put, discontect the sub from the receiver and see if it still makes a hum, Making sure that you turn auto on, off on the sub woffer.
If it still makes a hum, then you have a earthing problem, you can get a earth filter put on your internal wiring in your home, or you can remove the earth pin on your sub woffer

Posted on Dec 13, 2007

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SOURCE: Onkyo tx sr503 No

Turned out to be a level problem.

Posted on Nov 06, 2008

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1 Answer

My Onkyo M501 Power Amp is putting out sound very low when volue is turned completely up


Make sure that the preamp you are feeding amp with is not at fault. If ok, then the issue must either be with the power supply or output stages of amp.

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Onkyo dr s2.0 DVD receiver has subwoofer output but no other speakers have sound. I have experience with electronics. Is there fuses for the preamps and power outputs separate from the main in ?


Hello Todd, I would not suggest trying to repair this unit yourself. I suggest an authorized service but it might be difficult getting parts. Thank you, Onkyo USA

Oct 03, 2016 | Onkyo Audio Players & Recorders

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Had a power surge and now my Onkyo TX-SR607 will not power on. Only get a constant click sound. Any repair advice?


although power surge can trigger activations of protection circuits,

there are at times, damage is done before it is activated.

• Check first for low power supply regulators,

then check for possible output stage failure.

let me know if you need further assistance!

Sep 09, 2012 | Onkyo Tx-sr607 7.2-channel A/v Surround...

1 Answer

No subwoofer sound


Odds are that your woofer is blown. That or your outputs failed in the power stage of your sub. Pretty sure your receiver is fine.

Jun 22, 2012 | Onkyo TX-SR304 New

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My onkyo skw 200 sub woofer is blowing fuses as soon as i plug it in


The amp output stage or the power supply is shorted. Service shop type repair.

Mar 03, 2010 | Onkyo Audio Players & Recorders

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whatisthe codewriten behindtheoutput of the onkyo subwoofer skw 150my ou6666088.jpgt put is bad in sucha way that ican not retrieve the the code

Feb 12, 2010 | Onkyo SKW-200 Subwoofer

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I think i fried the power supply shorting against the chassis.. is it worth trying to fix it? touched bare speaker wire to chassis while it was on...


What leads you to think you fried the power supply in your unit? While touching the speaker wire to the chassis is never a good thing it should not have fried the power supply. Might have opened a fuse in the speaker circuit. Have you checked all the fuses yet? Try that first and get back to me and make sure the unit is unplugged before you open it up!!!

hardrocko

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RE: Fisher Model CA-270 - 480 watts.


These units use amp-pacs for the output stage, if I remember correctly. All in all, the unit will require some diagnosis to determine the problem with the power supply and the final output stage. The total cost of repair easily could exceed $125. You can probably replace the unit with a better one for not much more.

If you would still like this unit repaired, please indicate where you are in the country and I'll try to find a shop for you.

Dan

Aug 12, 2009 | Audio Players & Recorders

1 Answer

Loud Buzzing Sound


This may be a power supply failure, and or a short in the output stage, and in the drivers for the output stage.

This is not a repair you can do at home unless you have a lot of experience in troubshooting and analysing problems in power amplifier equipment.


Jerry G.

May 04, 2008 | Onkyo TX-SR875 Receiver

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Onkyo A-RV401 amp is not sending any sound to the speakers.


The protection circuit is self resetting, it operates only when there is a fault condition in the amp. there is most probably a failure in the output stages of the amp causing a dc offset condition in the speaker output. The protection cct operates to prevent damage to your speakers. It may be difficult to offer a solution to you for this, it gets a bit complex to fix from here...you may have dry solder joint problems in the output stages, or more likely, failed output components. if you have a transistor checker(ohms meter), then you may be able to determine if any output transistors have failed, I recommend taking the amp to a good HiFi guy for repair. Many (including myself) often replace the all transistors to the last 2 stages when outputs fail. assures reliability in the future to repair this way, but the cost goes up a bit also. expect at least $120 to repair is it is a failed output stage.

Jan 03, 2008 | Audio Players & Recorders

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