Sony CMT-SPZ90DB Sound output problem

Discussion in 'Hi-Fi and General Audio' started by Spike47, Apr 14, 2022.

  1. Spike47

    Spike47

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    Hi

    I have a Sony CMT-SPZ90DB and there is a problem were there is only sound when I use the headphones, no sound out of the speakers !, any idea what the problem could be ?.



    cheers

    Spike
     
    Spike47, Apr 14, 2022
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  2. Spike47

    Sergeauckland

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    Likely to be a protection relay or similar device that is stuck in the open position so no sound gets though to loudsepeakers.
    You need a Service Manual, or at least a circuit diagram to analyse.

    As the headphones work, the fault won't be serious, a tech should sort it out fairly easily.
    S
     
    Sergeauckland, Apr 15, 2022
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  3. Spike47

    Spike47

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    Hi
    Thanks for your reply, have just got the SM for it, will have a good look when I get home from work.

    Cheers
    Spike
     
    Spike47, Apr 15, 2022
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  4. Spike47

    Spike47

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    Amp Board !
     

    Attached Files:

    Spike47, Apr 15, 2022
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  5. Spike47

    Spike47

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    4 Brown parts are 9 Z65-105 , the 4 grey parts are ( C100-YS ) have no idea what the latter is !, is there a component on there that would act has a protection/overload ?, there is 2 components top right marked (MF) have no idea also what they are .


    cheers

    Spike
     
    Spike47, Apr 15, 2022
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  6. Spike47

    Spike47

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    Hi
    All sorted now, there was a factory reset sequence that I have managed to find and all is working good, I am a very happy person today, thanks for all your replies .

    cheers
    Spike
     
    Spike47, Apr 15, 2022
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