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Medion TV problem help

Discussion in 'Electronic Repair' started by Lexx, Apr 14, 2007.

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  1. Lexx

    Lexx Guest

    Ok this is some strange behaviour i have with my tv, when i turn it on
    he doesnt turn on at that moment he starts to do something i dont get
    what recharging something? The green light is blinking like it stuck
    into something and then sometimes after 10 min he turns on and sometimes
    he doesnt turn on. What is his problem? Does anyone know?
     
  2. Jeroni Paul

    Jeroni Paul Guest

    Looks like bad capacitors in the power supply or line output stage.
     
  3. Lexx

    Lexx Guest

    Yes i thought about that too. Becouse it needs time to recharge but i
    didnt saw any exploded capacitor in there, how to check for sure which
    one is bad?
     
  4. Meat Plow

    Meat Plow Guest

    With an ohm meter if you have experience doing so or with an ESR meter
    which is a MUCH better way because it tests them dynamically with a 50khz
    frequency. But then you need to lay out the cash for one.

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  5. Lexx

    Lexx Guest

    Well i learned it once in school but i fully forgot how it goes i have a
    multimeter. I will try to check them. What does it show when a capacitor
    is bad?
     
  6. Lexx

    Lexx Guest

    I let unload all capacitior with my mulitmeter and when i do that then
    the tv turned on. I dont get it now whats the problem?
     
  7. b

    b Guest

    start by changing the smaller electrolytics in the secondary area of
    the power supply,. they are cheap enough (Note: use 105º rated
    substitues!). unless you plan to do this very often it isnt worth
    getting an esr tester.
    -b.
     
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