HP LCD 12V 3.5A Positive or negative center?

Discussion in 'General Electronics Chat' started by #12, Nov 5, 2011.

  1. #12

    Thread Starter Expert

    Nov 30, 2010
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    The title pretty much says it all. Hewlett Packard LCD Model PE1229 from 2003. No power supply. I need to find out if it's positive center or negative center before I plug anything in.

    Anybody have a Hewlett Packard LCD..or work on them?

    Model PE1229
    12V 3.5A DC (solid line over dashed line)
    Chassis CBPC780K
    Product # P9620A
    Hewlett Packard 20555 SH249
    model name f1703
    Reference 339CK76TA235
     
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
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    I once had an HP one but now it is an ACER one. kekekekeke!

    Solid line over dash indicates that it is DC and the inner one is always positive. AS far as I have seen.

    You got an LED that you can fry ?
     
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  3. bertus

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    Apr 5, 2008
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    #12 likes this.
  4. #12

    Thread Starter Expert

    Nov 30, 2010
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    Thanks guys. That covers it. Positive center from you 2 and a photo of a power supply on eBay. I shall now procede with the smoke test ;)
     
  5. R!f@@

    AAC Fanatic!

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    Smoke 'em but do come back with pics...I like to see u in smokes.
     
  6. #12

    Thread Starter Expert

    Nov 30, 2010
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    Sorry guys. No smoke, no pics, no problem. It has already been delivered to the customer and I'm back at home for supper in less than an hour.

    Thanks for the help.
     
  7. R!f@@

    AAC Fanatic!

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    AAh Crap !
     
  8. #12

    Thread Starter Expert

    Nov 30, 2010
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    I think you mean, "Aw <snip> !"

    (May all your repair jobs be this easy.)
     
  9. R!f@@

    AAC Fanatic!

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    Yes...but alas, they never are...
     
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