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Power transformer burnt out

Can somebody tell me what the secondary voltages are on the main power transformer so i can possibly get a replacement.thank you hutty. I have a blown power transformer in my Denon AVR-1801 receiver. Denon wants almost as much as I paid new for the unit for the transformer. Does anyone have a more cost effective source?

Posted by jd73 on

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Grubhead

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  • Audio Player... Master
  • 5,700 Answers

Transformers are safety components. They need to be replace with exact parts. So unless you can find the same thing cheaper online, you will have to pay the price. Unless you want to burn your house down!
Try looking for "Denon replacement parts".
That might come up with cheaper suppliers. Also try E-Bay, perhaps for a none working model of your receiver. As long as the transformer is working it doesn't matter what else is gone on it.

Posted on Nov 28, 2017

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5 Related Answers

Robert Johnson

  • 395 Answers

SOURCE: Denon AVR-681 receiver

this manual is the same as the 681 the only difference is the front input and power difference. this web sight http://www.usa.denon.com/AVR1602_682_ownersmanual.pdf

Posted on Jan 13, 2008

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Anonymous

  • 1 Answer

SOURCE: denon avr 3000

Anyone want to buy a working Denon AVR-300?

[email protected]

Posted on Feb 02, 2008

Anonymous

  • 624 Answers

SOURCE: Denon AVR-1907 blinking red power button

It sounds like you have a bad speaker on the zone 2, or you have the speakers connected improperly.

When you engage the zone 2 a relay clicks and the speakers then become part of the amplifiers circuit.

If the problem was in the amplifier, it would go into protect mode without even having speakers connected to it.

If the speakers all check good, you most likely have the wrong type of speakers, meaning the impeadance is too low, or you have too many speakers connected to it.

On the back of the Denon, you will see right around the speaker output jacks, what ratings the speakers should be. If I remember correctly, it says 6 ohms or more when using only "A" or "B", and it says 12ohms or more for "A" + "B".

If you have two 8 ohm speakers on the same speaker jack you now have a 4 ohm load. That is below the ratings and can cause the amp to shut down (go into protect). Since your amp shuts down right away, I think you have a bad speaker or way too many speakers connected.

I have seen many times when people will connect 2 or 4 speakers to the one of the outputs that are designed for only 1 speakers.

If you are using too many speakers you will need a speaker distribution box. It has a resistor network built into it so the amp never sees a lower impeadance than what it is designed for.
You can connect 4, 6 or 8 speakers to one set of outputs designed for 2 speakers. You do loose a lot of power to the speakers, but it is better than blowing up your amplifier.

If I can be of any further help, let me know.

Posted on Jun 22, 2008

mattvierra

Matt Vierra

  • 75 Answers

SOURCE: Denon receiver AVR-3300: Unstable source selection

Very important you have run system set up menu it configures your receiver with inputs analog or digital,speaker size,input,room correction etc Different input modes can be selected for the different input sources.
The selected input modes for the separate input sources are stored in
the memory.
q AUTO (auto mode)
In this mode, the types of signals being input to the digital and
analog input jacks for the selected input source are detected and
the program in the AVR-3300’s surround decoder is selected
automatically upon playback. This mode can be selected for all
input sources other than PHONO, MD/TAPE and TUNER.
The presence or absence of digital signals is detected, the signals
input to the digital input jacks are identified and decoding and
playback are performed automatically in DTS, Dolby Digital or PCM
(2 channel stereo) format. If no digital signal is being input, the
analog input jacks are selected.
w PCM (exclusive PCM signal playback mode)
Decoding and playback are only performed when PCM signals are
being input.
e DTS (exclusive DTS signal playback mode)
Decoding and playback are only performed when DTS signals are
being input.
r ANALOG (exclusive analog audio signal playback mode)
The signals input to the analog input jacks are decoded and played.
t EXT. IN (external decoder input jack selection mode)
The signals being input to the external decoder input jacks are
played without passing through the surround circuitry Your remote is searching for inputs because you did not properly run system set up!!! Here is a link to your manual [PDF] AVR-3300/1 3.3E*

Posted on Jul 22, 2009

Anonymous

  • 1 Answer

SOURCE: Simple question?? how do I connect my Panasonic subwoofer to my denon receiver?

I have a very similar problem with the same exact Panasonic sub. I went to Best Buy and Radio Shack looking for an adapter, and they basically told me that one does not exisit. Apparently, Panasonic designed the home theater system specifcally so that it could not work if any part of the entire system was ever seperated.

Posted on Nov 15, 2009

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First, check the 220v line and breakers are properly grounded and that you are getting a constant 220v at the plug. Then you will need to check the transformer on the unit.To test a transformer you need to know what type of transformer it is first. There is a step up transformer which steps the voltage up and a step down transformer which steps the voltage down.
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