Question about Denon AVR-2106 Receiver

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I had the the volume up medium listening to music. I then smelled somthing burning. it was coming from the inside of the receiver, from the top vents. at this point the power light started to blink and i then lost power. when i press the power button, it blinks red and then shuts off. i have a denon 2105 avr

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  • elco-fixer May 11, 2010

    Just managed to repair AVR2105 which had same symptoms as descibed above. Replaced a pair of output transistors and some o/c resistors etc. The only problem is the amp is generating too much heat. I guess quiescent current for output transistors needs adjusting, there is a trim pot near them and a socket to plug test wires I guess. Anyone knows how to adjust quiescent current and to what value?

    thanx

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It is most likely that you have a shorted output channel or a supply resistor that sometimes opens. The smell you had was probably a resistor opening up. This could be a couple of resistors in a output channel or the supply resistor mentioned above. In either caase, it is something that would require an experienced technician to repair. If you have a multimeter and soldering iron, I could help you to determain the exact cause. But it would require very good soldering skills and if the problem is more than just the supply resistor opening it would require the replacement of 2 output transistors, 6 to 8 resisitors, 3 driver transistors, 1 capacitor, all for repairing a shorted output channel. I have repaired many of these Denon receivers and it takes an experienced technician about 2 hours to complete the repair. It is very common for these Denon's to have this problem.

If you are up to the task, let me know and I will direct you to the proper components and give you the part numbers you will need to complete the task.

But beware, it must be done perfectly the first time, and if you miss just one bad component and then turn the unit on again, it can burn up all the components you have just replaced.

Do not continue to try and turn the unit on any more since it is going into the protect mode, doing so can cause more components to fail from excess current being drawn thru the bad channel every time you turn the unit on again.

Let me know if you need more help.

Dave

Posted on Jul 09, 2008

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If it is an active speaker unplug it now!!!!!!!! If it is a pasive speaker open it up and see what is burning. disconnect it. you will cause further damage. If you need it fixed you can order the parts. or send it in to our shop or find a local service center.

Vito Vacirca Jr.

Pro Line Music

490 Lincoln Highway

Fairless Hills Pa. 19030

215-736-8055

servicedepartmentprolinemusic@comcast.net

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i hope i was able to solve you problem..

pls rate me.


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