I have a 120v transformer in my Denon, but as I live in England I need a 240v transformer to run it. Does anyone have any ideas where I can get one, or do you know of an equivalent transformer that would be suitable? Many thanks Garry.
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Highly unlikely you can fix it. An overvoltage like that at the least fried the power transformer inside. If on the off chance nothing leaked through to the circuit board while the transformer was literally melting down (the windings) inside, if you could get the part and swap it, maybe it would work again.
The risk of that is another failure even at the right voltage because it is more likely the protective circuits were also fried, along with most of the logic chips and other things.
I assume there was a bang and some smoke or at least a good amount of acrid smoke. That usually is a sign of 'toast'. Very likely it would be cost ineffective to repair.
I have schematic in PDF file I convert to JPG still over 150KB I can not see properly with JPG format I do not know how to post it to you
Any way check in STBY PCB you must have 5.6V STBY that voltage supply to CPU or system control when you turn on the relay will switch AC line to the big transformer now if any thing wrong with the regulator or output or output drive it will shutdown automatic and the red LED will blinking indicated some thing wrong
Give me exactly location of the component in STBY PCB the small transformer TR?? C?? or R?? with voltage? connector number such as J ??
The service manual is about 20MB
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.