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Broken CRT TV

  • 15-01-2011 10:13pm
    #1
    amacachi
    Closed Accounts Posts: 23,316 ✭✭✭✭


    Basically the top half of the screen is blank with a narrow bright white line across the middle and the bottom half of the screen is fine. Does this sound like a common problem that could be fixed easily enough? I imagine something is stopping the stream from hitting the top half of the screen but I have little clue of the mechanics of a TV.


Comments

  • #2
    Lord Spence
    Registered Users, Registered Users 2 Posts: 2,177 ✭✭✭Lord Spence


    My expierence of CRT is that once they start to go wrong it rarely worth repairing. The cost of a new tv these days are so cheap so would be a much better option plus would give u a fresh 1 year warranty. You could even pick up a cheap second hand CRT tv on adverse for about 50 euro

    In terms of fixing the tv try a different scarf connection or different rf cable


  • #3
    amacachi
    Closed Accounts Posts: 23,316 ✭✭✭✭amacachi


    Lord Spence wrote: »
    My expierence of CRT is that once they start to go wrong it rarely worth repairing. The cost of a new tv these days are so cheap so would be a much better option plus would give u a fresh 1 year warranty. You could even pick up a cheap second hand CRT tv on adverse for about 50 euro

    In terms of fixing the tv try a different scarf connection or different rf cable

    It's not the leads, happens on all inputs and without any inputs. Was just hoping it was a common enough thing that would be easy to repair. Ah well.


  • #4
    Worztron
    Registered Users, Registered Users 2 Posts: 8,791 ✭✭✭Worztron


    Are CRT televisions still being sold in shops? I prefer them to the TFT LCD ones. I still have my trusty 14'' Sony TV from 1997. :)

    Mitch Hedberg: "Rice is great if you're really hungry and want to eat two thousand of something."



  • #5
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 93,581 Mod ✭✭✭✭Capt'n Midnight


    probably will cost €100 to fix

    if you are lucky (and it's not a trivial dry joint) it could be as cheap as this
    http://www.donberg.ie/catalogue/semiconductors/semiconductors_tda/tda_1170s.html

    schematics are probably here www.eserviceinfo.com


    But CRT's have Kill-O-Volts in them long after they are turned off, so not a DIY job unless you really know what you are doing.


  • #6
    ZENER
    Registered Users, Registered Users 2 Posts: 6,163 ✭✭✭ZENER


    Sounds like the vertical deflection or field output as it's more commonly known. Could be as simple as a dry joint, dried out electrolytic or a blown I.C. or transistor depending on the age of the set. Most repair shops have a menu system for CRTs, E.g. 15" to 19" - 45 euro : 20" to 24" 65 euro etc.

    Would definitely NOT recommend you go at it yourself unless you have some knowledge of electronics and an appreciation of what a shock from 20KV DC feels like :)

    What county/town do you live in ?

    Ken


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