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Cost of replacing LCD screens

Discussion in 'Electronic Repair' started by [email protected], Oct 30, 2006.

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  1. Guest

    Hi, I am getting a few LCD TVs 32" and higher various brands with most
    of these having broken screens. I dont have experience fixing LCD
    monitors/TV so am going to attempt this. I have some experience with
    fixing other devices and electrical circuits. My question, how much
    does the LCD screen costs on average for 32" and higher TVs.

    Assuming all other boards are ok and only broken screen, is it worth
    fixing these to resell ? Are service manual available for these ? and
    is replacing LCD screen simple procedure of just removing the old one
    with a new/used one and only connecting a few cables to the new screen
    ?

    thanks.
     
  2. Guest

    wrote:
    : Hi, I am getting a few LCD TVs 32" and higher various brands with most
    : of these having broken screens. I dont have experience fixing LCD
    : monitors/TV so am going to attempt this. I have some experience with
    : fixing other devices and electrical circuits. My question, how much
    : does the LCD screen costs on average for 32" and higher TVs.

    : Assuming all other boards are ok and only broken screen, is it worth
    : fixing these to resell ? Are service manual available for these ? and
    : is replacing LCD screen simple procedure of just removing the old one
    : with a new/used one and only connecting a few cables to the new screen
    : ?


    The lcd screen is 80 to 90% of the cost, so unless you find a really cheap
    source, you will probably loose on this deal.


    : thanks.
     
  3. You will wind up with a unit that costs more than a new one, and way more
    when they are on sale, and the warranty won't be as good. Not a good deal
    for all. What happens when a customer refuses to claim the unit(s)?
     
  4. tomh

    tomh Guest

    You say broken? If there is physical damage to the screen, it's trash,
    dispose of properly please. As has been pointed out, not economical to
    fix unless you have the exact model as a spare you got for free. However
    if by broken you mean, does not work, that's a little different.
    If the power lt is on but it's a dark screen, you may have just bad
    backlighting. This is definitely worth the try, there have been several
    threads here and elsewhere on the web on fixing the cold cathode inverters.
    If the backlighting is OK but the screen doesn't show proper data or
    it's all messed up that gets very iffy. There's typically one or more
    FPGA's between the video in and the LCD itself. If they're bad, your
    chances of finding a replacement part or a manual are slim to none. Toss
    it or save for parts.
    If you collect enough of them as unrepairables/freebie's you may be
    able to build up an inventory of replacement parts. But there's nothing
    really standard about them. Same model from the same "manufacturer" can
    have different innards.

    tomh

    "I asked him what his name was and how 'come he didn't drive a truck,
    he said his name was Columbus and I just said good luck"
     
  5. Guest

    some I have have broken or cracked screens. A few I have are LCD
    monitors 17 and 19" with some issues, not broken screen. Some would
    power up, nothing on screen. Others wont power up at all. A few power
    up but have red or pink vertical line. Any ideas/leads on this would be
    helpful.


    thanks in advance.
     
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