Question about Denon AVR-1707 Receiver

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Denon AVR 1707

Hooked the speakers up to the receiver, turned it on but no sound, not even from the radio (antenna installed). dont understand it. display is lit and in the case of the radio, looks like the receiver has locked onto a station. any ideas, or is the receiver broken?

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  • semiii Sep 30, 2007

    tried your solution (had done this before) but still does not work. also reset the microprocessor but no good.



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Hi, There should be a very light thumping sound when you power off or power on the receiver. If none, then it is possible that as you posted, the receiver is broken. 3 possible areas where the receiver might be having some problem(s) are: 1. The speaker protection circuitry. This might have activated which is indicative of another possible problem(#2); 2. Your amplifiers are dead; 3. For some reason, audio muting is activated. this is normally caused by the microprocessor not detecting any intelligent audio input and mutes the audio before going into the preamp stage. Examples of this are when they FM signal is weak there are more hiss than intelligent sound. But as you posted, there seems to be a station that it has locked into and an antenna is installed. If resetting the unit and trying other signal sources such as CD player or MP3 player, or even your fingers on the positive end of an RCA plug and likewise trying the different RCA inputs and selecting the source as the case maybe, and you still do not get any sound reproduced from the speakers, then it is probably safe to say the your receiver needs some repairs. Since this involves electronic circuit diagnosis, probably soldering and replacing some components, perhaps your best bet is to seek the services of a qualified professional. Hope this be of some idea/help to you. Good luck and kind regards.

Posted on Oct 01, 2007

  • Louie  Role
    Louie Role Oct 01, 2007

    Hi again,

    It is also possible the the amplifier is not receiving any power. Normally in designs like this, there are multiple fuses installed. The amplifier section is powered by a separate high current source and is fused separately from the logic and peripheral circuitry. Should you venture opening your unit, power amplifier fuses are located very near the main power supply. In some instances, they are mounted on the PCB of the amp themselves.



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