Question about Sanyo DS25390 TV

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Buzzing sound from Relay

The relay just after the input transformer is buzzing loadly (oscillating) when the power button is pushed. The TV video and audio is fine. The bussing is not coming throught the speakers. The 6W resistor between the transformer and relay is also getting very hot with just the set plugged in but not turned on. Does anyone have a solution? Thanks....

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  • Anonymous Mar 22, 2008

    fixed mine too. thanks

  • Anonymous Mar 29, 2008

    I spent 12 bucks for a 470uf 250 volt cap put it in and the relay still clatters. ?????????????/

  • Sean Nelson
    Sean Nelson Dec 27, 2012

    The original voltage rating of the cap was 25 volts. Purchasing a 250 volt rated cap is overkill. If the relay still clatters, did you install it correctly and observe polarity?



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The problem is a capacitor at location C622 470mfd and must be changed. Use equal or better voltage rating

Posted on Mar 16, 2008


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Sanyo tv ds25390 buzzing sound

I had the same problem with the same model.
The solution was to replace a capacitor, C622, which is located near
a small blue rectangular plastic component.
This component is a relay that is controlled by C622. I paid $2.39 for
the part, $8.99 for S&H for a total of $11.38. This fixed my problem!

May 26, 2008 | Sanyo DS25390 TV

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Hello to all you buzzers, I have the answer to your problem. First this is what's happening. The buzzing is coming from the power relay. It vibrates at 60hz because the power supply filter capacitor is not doing its job hence you have a rough d.c. pulse going to the relay.To solve the problem remove back of t.v. slide circuit board out (you will have to disconnect white wire from degauss coil,located on left front) look for a blue box approximately 3/4"x1 1/2" this will be the power relay. Now look for capacitor location #c622 near the relay. This capacitor should be 470uf 25v. Remove and replace with 470uf 35v capacitor, connect white degauss wire temperarily put back on and give it a spin. Hope this solves all the buzzin,robert

Jul 12, 2007 | Sanyo DS24425 24" TV

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