Question about Broksonic SC20145 20 in. TV/VCR/DVD Combo

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No screen, no power on light, but high frequency squeal

I have a Broksonic SC-20145 TV/DVD/VHS combo. when plug the power cable, there is no screen, no power light on, but a high frequency noise continuously. What's the problem? it's something wrong in power supply or other parts? Please email: zhaohanq@msu.edu Thanks

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  • simajara Nov 01, 2007

    yo tengo un Broksonic SC20145 y emite un sonido constante el VCR y el DVD encienden pero la pantalla no, espero que algun amigo que sepa español este leyendo esto y me ayude, gracias

  • Anonymous Aug 30, 2008

    TV will not turn on by pressing power on button. Has power to receptical. I feel it is a low voltage board problem.

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You have a very good idea of what is happening,the power supply is likely being pull down by a shorted component,it could be a regulator or the output transistor.The power supply provides about 5 or 6 different voltages to be use for the different circuits,I gave you two ideas but it could be any of them.Be safe and take it in for service.

Posted on Sep 19, 2006

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