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Google wont help! 4 pin IC cannot find datasheet.

Discussion in 'Datasheets, Manuals and Component Identification' started by kingoftaurus, Jan 17, 2012.

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  1. kingoftaurus

    kingoftaurus

    3
    0
    Jan 17, 2012
    Hello, I have taken apart an old television and have found this 4 pin, integrated circuit on it, and no matter what kind of search on the internet I do, I just cannot find what it is.


    so im going to try to show you what it looks like so maybe you can help.

    PIN PF5001 PIN
    0001
    PIN K C . PIN

    Flip the chip over and there is a stamped K

    the K on the front of the chip is pretty fancy, eveything else is typed very clearly. and the " . " on the front is a white dot.

    I think i attached a pic of it.. dunno how that will work out
     

    Attached Files:

  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,497
    2,839
    Jan 21, 2010
    I'd say it's either a bridge rectifier or an optocoupler.

    If you use a multimeter on a diode test range, you will find diodes across each of the 4 pins if it's a bridge rectifier, and across only 1 if its an optocoupler.
     
  3. kingoftaurus

    kingoftaurus

    3
    0
    Jan 17, 2012
    Only across the side with the dot on it, red terminal on dot, black on the one just above it.

    So, optocoupler it is. So theres a little led inside. How interesting.

    http://en.wikipedia.org/wiki/Opto-isolator is where i read up on it. Seems useful.

    Wish i had a datasheet still, so i dont overload the poor thing. lol.

    Edit:
    Now that i know what it is, i found out exactly what it is...

    http://www.freelists.org/post/techassist/Sylvania-19-TV-May-2000-TVK199K-stormdead-FIX
     
    Last edited: Jan 18, 2012
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