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Tv wont power on - Hitachi Televison & Video

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  • kevinlabad Jul 29, 2010

    i have an hitachi 50dx10b that wont power on if i unplug it and plug it back on the power light blinks three times and shuts off

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2 Answers

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  • Hitachi Master
  • 5,807 Answers

You may need someone to help you trace and repair bad components

that possibly may have been causing your TV not to turn ON.


But If you feel you can work on the Circuits I have mentioned

a while ago then .post so I can help you further.

Posted on Jul 29, 2010

  • Rommel Cana
    Rommel Cana Jul 29, 2010



    And these are the possible Circuits/ components you need to check:







    • your


    Flyback


    will work once it have a supply of 120V


    Here is a part of the Horizontal Circuits:





    Q777





  • Rommel Cana
    Rommel Cana Jul 29, 2010


    the +B voltage goes here










    and once these Flyback oscillates other voltages will follow.

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  • Hitachi Master
  • 11,800 Answers

On the front of the tv there's a light - it indicates the status of the power source of the tv:
 - the light blinks  - the tv has had a relatively minor fault and the power source is in protected mode - this is usually caused by a failed capacitor, open the tv, find it and replaced it  - it will look bloated, leaky.
 - the light is steady and red/orange - a big problem has occurred, multiple components have failed and the power source has crashed, itself with some damage. This is a job for a pro and it will be expensive.
 - no light is visible - the fault is massive, multiple parts, including the entire power source, are totally fried and will have to be replaced. If your tv is an older model the repair will surely be more than the tv is worth. Get a quote before doing everything else.

Posted on Jul 29, 2010

  • kevinlabad Jul 29, 2010

    so if the power light goes off there is a major problem

  • Azrael SRL Jul 29, 2010

    Yes, a very major problem - it means that the power source has completely failed.


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