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

Discussion in 'Troubleshooting and Repair' started by AlcoTheory, Aug 18, 2010.

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  1. AlcoTheory


    Aug 7, 2010
    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

    Display - PS PRT 094 B

    Display - PS PRT 095 B

    Clicking Relay w. small Transformer - Side View

    Clicking Relay w. small Transformer - Top View

    Small Transformer - View 1

    Small Transformer - View 2

    Larger Transformer - Side View

    Larger Transformer - Top View

    Here are the videos of the unit

    1, Display as it powers on.

    2, Clicking relay

    Here are the schematics for this unit,

    Here is the manual for this unit,

    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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