Question about Emerson EWL2005 20 in. LCD Television

3 Answers

Red indicator lite only comes on for a second when on button is pushed.Tv will not power up . I replaced the two caps in power supply,but no change.Emerson model EWL20S5b. I need help checking power supply further.

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  • mcgiverlord Sep 08, 2010

    I don't know exactly where to ck voltages and how to check power transistor. Whould it help if I took a pic ? thanks Ron

  • mcgiverlord Sep 08, 2010

    I'm a retired electrician with some electronics experience , but working without a schematic is difficult for me because I don't have labeled voltage check points. I will keep trying on my own because the tv is 5 yrs old and not worth putting a lot of money into. thanks Ron

  • mcgiverlord Sep 09, 2010

    Is there anywhere I can get a schematic? thanks Ron

  • mcgiverlord Sep 11, 2010

    I haven't had time to do any further trouble shooting yet, but the info you gave me sure helps. thanks

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  • Master
  • 1,961 Answers

That is not a DIY problem this problem requires a technical knowledge to fix it.It is more technical.I would suggest to bring your TV to a repair shop. thank you!

Posted on Sep 09, 2010

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  • Danilo Baraquiel
    Danilo Baraquiel Sep 09, 2010

    Ok sir, this is probably what you need... the schematic diagram of the power supply of Emerson EWL20S5b

  • Danilo Baraquiel
    Danilo Baraquiel Sep 09, 2010

    If the diagram looks blurred to you, find a clear one on the link below. I might as well give all the diagrams that Emerson WWL20S5b have. From LCD, video, audio diagram, dis assembly instructions, replacement parts.. All you need to know about this LCD can be find in this service manual. If you have Adobe acrobat reader installed in your system you can view this because its pfd format. This is the link: http://www.scribd.com/doc/3744643/Emerso...

  • Danilo Baraquiel
    Danilo Baraquiel Sep 09, 2010

    Sir, please give this answer a 4 thumbs up rating if this is the answer you need. Thanks for using Fixya.

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  • Emerson Master
  • 5,138 Answers

Google to this Website and Type in your model number
Encompass Parts Distribution 1-800-638-3328
They should list Parts/Prices You might need to just replace the whole board.

Posted on Sep 09, 2010

  • ladywinn
    ladywinn Sep 11, 2010

    Partstore.com might have one or try HBP Electronics.online

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  • Emerson Master
  • 11,800 Answers

Find the 115 volts line that goes to the high tension/flyback transformer then disconnect it - unsolder the safety strap or the first resistor. Without it the power source should start long enough to test the other voltages from the outputs. If none of the voltages is present then check the power transistor of the source and the rectifiers  - if they are ok then the transformer of the source is gone and must be replaced. If one of the voltages is lower or not at all then test all components that are poweredby it.
If all voltages are on then the high tension block is faulty - replace the power transistor. If the transistor is fried immediately then the flyback transformer is fried - replace it.

Posted on Sep 08, 2010

  • Azrael SRL Sep 08, 2010

    If you don't know where to check then how are you going to know what part is good or bad? How are you going to know how to test them ? If you touch by accident something that you shouldn't it can easily kill you  - it's 25,000 volts in there. And even if it doesn't kill you it will surely fry more parts making the repair even more complicated and expensive.



    Sorry, but i think it's time to call a pro, this is beyond your level of expertise.

  • Azrael SRL Sep 09, 2010

    http://www.scribd.com/doc/3744643/Emerso...

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