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Yamaha RX-V520 Receiver - Shuts off after 2 seconds.

Discussion in 'Repairing Electronics' started by Amphr_Moth, Aug 18, 2010.

  1. Amphr_Moth

    Amphr_Moth New Member

    Joined:
    Oct 28, 2007
    Messages:
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    Hello to all. Allow me to get right to the point.

    I have a Yamaha RX-V520 receiver that starts up, clicks and then shuts down after about 2 seconds.

    - There are no loose or disconnected wires
    - There is no visible damage to any components (including caps)
    - The fuses are good
    - There is no odd (burning) smell anywhere

    I have included pics, video and the schematics of the unit to assist in the diagnoses.

    From my very very limited understanding of electronics I think it might be one of the transformers, but I don't know.

    In the photos and video I show the relay that clicks.

    In video "1- Display" I push the power button twice and then I push simultaneously, Power Button, Input Mode, FM/AM and Tuning Mode.

    When I press all 4 these messages pop up.
    PS PRT : 094 B
    PS PRT : 095 B
    PS PRT : 096 B

    Thanks in advance for any help anyone might offer.



    Display when the power button is pushed on
    [​IMG]



    Display - PS PRT 094 B
    [​IMG]



    Display - PS PRT 095 B
    [​IMG]



    Clicking Relay w. small Transformer - Side View
    [​IMG]



    Clicking Relay w. small Transformer - Top View
    [​IMG]



    Small Transformer - View 1
    [​IMG]



    Small Transformer - View 2
    [​IMG]



    Larger Transformer - Side View
    [​IMG]



    Larger Transformer - Top View
    [​IMG]




    Here are the videos of the unit

    1, Display as it powers on.
    YouTube - 1 - Display.wmv

    2, Clicking relay
    YouTube - 2 - Relay Clicking.wmv


    Here are the schematics for this unit,
    RapidShare: 1-CLICK Web hosting - Easy Filehosting
    or
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    Here is the manual for this unit,
    RapidShare: 1-CLICK Web hosting - Easy Filehosting
    or
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    Thanks Again for any help. :)

    P.S. I will probably be posting this question in other electronic forums. I hope no one has any issues with this. :)
     

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