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Electronics That burning smell

Discussion in 'Modding' started by gm_crop, 9 May 2006.

  1. gm_crop

    gm_crop New Member

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    Usually followed by "Ahh ****!" or "Aaaauuuugggghh **** my hand" depending on what's burning.

    In my case both.

    Basically what has happened is that my cold cathode inverter has burnt out. Having a peek inside I can see that it's this that has cooked itself
    [​IMG]

    What I'm trying to ask, is what is that component, where can I get a new one, or is it worth just ditching the stuff as it was dirt cheap (dont buy the cheap crap on ebay)

    I can still just make out the lettering D1803, and s 34 on it, if that helps at all.
     
  2. sui_winbolo

    sui_winbolo Giraffe_City

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    Uh looks like a transistor, but I'm not sure really. Did you have airflow on the inverter? That seems to be the caused of inverters frying themselves. Lack of airflow.
     
  3. gm_crop

    gm_crop New Member

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    Well I may have been playing with it a little much- I really shouldnt be plugging and unplugging them when the pc and lights are on. :duh:
     
  4. OtakuHawk

    OtakuHawk New Member

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    :grr: BAD DESIGN.
     
  5. sui_winbolo

    sui_winbolo Giraffe_City

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    Very bad design. That is why whenver I find a use for my 4 blue CCFL I'm putting an 80mm fan on the inverters. lol

    Oh yeah, heard that before. Not good thing to do. Might cause damage to yourself also with all those volts, lol. :duh:
     
  6. bender386

    bender386 New Member

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    might not of been a bad design but probly uesd cheap as hell parts
     
  7. ChromeX

    ChromeX Active Member

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    The componant is a mosfet, bit like a transister but its got a few diferences. They can be found for less than £1 and shouldnt be hard to replace with a soldering iron, maplin is your best bet or rs. If you know what ya doing, why dont you build your own inverter that way you'll know exactly what its capable of and hopefully wont run into this problem again. :)
     
  8. agent420

    agent420 New Member

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    A new board might actually be cheaper than the replacement part...

    I frequently have that burning smell at the 420 labs :D
     
  9. ChromeX

    ChromeX Active Member

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    Yeah a replacement board wouldnt cost much, I wouldnt use that one though
    Every ccfl and inverter i've ever seen used a 12v input from the molex, if you put 12v through this inverter you'll blow it! You could do the lil trick the guys describes if your feeling confident though. :dremel:
     
  10. sui_winbolo

    sui_winbolo Giraffe_City

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    Bad design, like how they put them in plastic box with couple little holes on top. lol :eyebrow:
     
  11. gideon

    gideon New Member

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    sui_winbolo volts dont cause damage the amps do static electricity is about 10.000 to 30.000 volts i even felt a few milojn volts (ok that HURTS)
     
  12. cpemma

    cpemma Ecky thump

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    Bet you a cookie it's a 2SD1803 NPN high-frequency transistor. :D
     
  13. agent420

    agent420 New Member

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    No offense, but that volts vs amps thing drives me nutz :wallbash:

    They're both related. You need the voltage to overcome the skin resistance, and the capability to supply the current. A 100 amp 12V car battery won't kill you any deader than a multi-thousand volt static charge on carpet (unless you're a mosfet :hehe: )

    [edit]
    Oops, my bad. A quick read of your post thought you were one of those 'Amps Kill' protagonists... I see you didn't quite say that. Seems like once every 3 months I come across this in a forum and it drives me crazy :baby:
     
    Last edited: 9 May 2006
  14. bender386

    bender386 New Member

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    yep i see posts like that all the time in different places. where people mostly welders are like "i was hit with 100A and im fine."
     
  15. cpemma

    cpemma Ecky thump

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    I know a lad who got a harmless little shock and broke his arm.

    Mind you, he did fall off the ladder.
     
  16. MonkeyTurnip

    MonkeyTurnip New Member

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    how many people mod PCs whilst up a ladder??
     
  17. bender386

    bender386 New Member

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    what your pc is not on your roof at all times???
    he was probly putting in a light globe or something.
     
  18. gm_crop

    gm_crop New Member

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    Maybe it was solar powered?
     
  19. AJB2K3

    AJB2K3 New Member

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    I brought an akasa modding pack on sale in pc world and the ccfl didn't work.
    How do i find out whats rong with it?
     
  20. gm_crop

    gm_crop New Member

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    If its from PC World then I'd say just take it back- probably not worth the hassle to try and fix.
     

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