Marantz SR7011 No Audio DSP Issue

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  • mmartell
    Badcaps Legend
    • Oct 2013
    • 3189
    • Canada
    #1

    Marantz SR7011 No Audio DSP Issue

    HDMI video works perfectly as does the GUI. No sound from tuner, internet tuner or HDMI have not yet tried analog inputs. No audio from Direct or Pure Direct mode either.

    If I go to Setup/General/Information/Firmware I have a numeric value for Version but beneath that the entry for -DTS Version has all zero's.

    If I go into Version Display Mode by holding Status and Dimmer while powering on (page 133 SM) I get FIRM ERR but after that everything appears good except #4 DSP 1/2/3/4 ROM: those are all zero's as well.

    Seems the DSP's are not functioning how can I use the SM to locate the source of the problem ?

    Service Manual attached.
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