TV Inverter Diagnoses HELP!

Discussion in 'General Electronics Chat' started by mark1992, Mar 9, 2013.

  1. mark1992

    Thread Starter New Member

    Mar 9, 2013
    2
    0
    Hello Everyone Hope Im In The Right Area, I Need Advice On Diagnoses On My Tv, I Am Technical Minded With Electrics ECT To A Certian Point, But With My Tv Its Confusing Me A Little Weither Im Correct Or Not, Tv Powers Up Fine Without Any Source Input Screen Is Normal Lights Up Colour Is Correct When It Has A DVD Player, PC Connected To It, The Display Breaks Down But When You Press Menu That Menu Colour Is Normal But The Background Source Looks Like A Rainbow, Which Makes Me Say A Inverter But Im Thinking Its More Likely The Main Board Thats Breaking Down Under Load?
    Any Ideas Would Be Very Helpful.

    Kind Regards
    Mark
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,421
    3,356
    Whats With The Capitalization On Every Word?
     
  3. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,969
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    What tv model number is it, can you post some pictures of the screenshots?
     
  4. mark1992

    Thread Starter New Member

    Mar 9, 2013
    2
    0
    Hello Its A Technika 37-700 i will take picure later, when tv is turned on, it appears fine, when a input source is in, the picture that is displayed becomes inverted, the orginal colour being displayed should be black and the colour displayed is green, Its Not The Dvd Player As It Works Normal On Another Display Via same connection, while its displaying the wrong colours, if you press menu on tv remote the tv menu colour is correct, but input colour is wrong. ive had a quick look at the main board for blown caps ect but they appear normal.
     
  5. MrChips

    Moderator

    Oct 2, 2009
    12,421
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    If you can find the schematics for the TV we can probably narrow down the problem.
     
  6. sheldons

    Active Member

    Oct 26, 2011
    616
    101
    chances are its a simple fix,post pictures of the set with your dvd player connected-is the dvd set for composite video op or rgb?are you using a scart lead for your connection?the fact that the menu screen is displayed properly rules out your inverter,no inverter no display.settings could be wrong in service mode however-what sort of off air pictures have you got?
     
  7. sheldons

    Active Member

    Oct 26, 2011
    616
    101
    after a long search thro my manuals i have found the service manual for your set but due to the size of the file i cant upload the complete thing here-heres a few things from the manual
     
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