Question about Denon AVR-1705 Receiver

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Denon A 1705 will not produce anything on the output from several of its audio inputs

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  • Mik2345x Feb 08, 2010

    I am sorry, i did not give you enough info:



    Some of the audio inputs work all right, some not at all.

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  • 5,807 Answers

Hi,

Servicing the unit requires a service manual like the one here @

http://www.s100-manuals.com/search.asp?q=denon%20avr%2017


a ) You need to open the unit and check for regulators, protection

circuits, preamplifier circuits and the main amp circuits.


b ) These trouble can be attributed to loose of audio

signal being sent to each main amp of the unit.

c) These can also possibly be from the protection circuits or

to the microprocessor .

d ) To start diagnosing the unit measure offset voltages on each

main amp output stage particularly on the center of the twin resistor

or to the test point indicated on the board.


e ) Having an over of 0.7V will activate the protection circuits thus

having no output on the speakers and sometimes will show

Protect indicator on the panel.


f ) Although at times , one way to tackle circuits like these is to

have a signal tracer.


here is a tip just in case you need to have an overview how to

troubleshoot the missing audio, these one is more basic than yours

but the principle is the same.


http://www.fixya.com/support/r4008719-diagnose_not_having_audio_right_channel


g ) These are just for the process of eliminating the cause, till

we can prove something then that would be the area we will be

concentrating on.


Let me know if you need further assistance after probing around.


Thank you for choosing FixYa for assistance. I hope that my

information proves useful to you. If so, please take a moment

to provide me with a positive rating. I'd really appreciate it.


Regards,

palaboy




Posted on Feb 06, 2010

  • Rommel Cana
    Rommel Cana Feb 08, 2010

    a ) troubleshooting is the same on the non-working input

    b ) possibilities are

    1 ) just a loose cable connection

    2 ) settings on the audio

    c ) If you have a signal tracer , then it would be easier on your part.


    d ) Indicate what input doesn't work , will try to work these out





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