Testing a TSOP1738

Discussion in 'General Electronics Chat' started by rvm.karthi, Feb 10, 2010.

  1. rvm.karthi

    Thread Starter New Member

    Dec 29, 2009
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    Hi could any one help me to test the tsop1738 is good or not........?
     
  2. Audioguru

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    Dec 20, 2007
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    I told you how to test the TSOP1738 in another thread or on another forum.
     
  3. rvm.karthi

    Thread Starter New Member

    Dec 29, 2009
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    Hi guru..
    Could you share that link for testing tsop pl...
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
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  5. hgmjr

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    Jan 28, 2005
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    Greetings rvm.karthi.

    Posting your question on more than one forum is a perfectly good way to cross check suggested solutions. It also gives you a larger audience for your specific problem since others may have your same problem and can benefit from the suggestions provided.

    hgmjr
     
  6. rvm.karthi

    Thread Starter New Member

    Dec 29, 2009
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    [​IMG]Hi
    i got this circuit n i tried but i am getting 4.9v in output without giving any ir rays... can any one help me pl....
     
  7. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    If you got a circuit, post it here and we will have a look at it.

    Greetings,
    Bertus
     
  8. rvm.karthi

    Thread Starter New Member

    Dec 29, 2009
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    i have it as a bitmap how can i post that one?
     
  9. rvm.karthi

    Thread Starter New Member

    Dec 29, 2009
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    That circuit is simple, 100 Ohm serious with input 5vdc and 10k parallel with i/p and o/p then 4.7 microfarad with i/p and ground....
     
  10. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    That is said in the FAQ:

    Succes,
    Bertus
     
  11. Audioguru

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    Dec 20, 2007
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    A bitmap uses very many digital bytes. Convert it to a PNG file type that uses few bytes and is very clear. Use Microsoft Paint program to convert it.
     
  12. Audioguru

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    Dec 20, 2007
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    The datasheet for the TSOP1738 shows that its output goes low (with a fairly low amount of current drive) when it receives IR bursts of 38kHz. Without a modulated IR input it output is normally high like yours has.
     
  13. rvm.karthi

    Thread Starter New Member

    Dec 29, 2009
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    Pl look at tis....
     
  14. dreamcatcher

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    Jan 5, 2010
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  15. bertus

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  16. rvm.karthi

    Thread Starter New Member

    Dec 29, 2009
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    But i am using the LG AC remote control only kno...... does it not gives the modulated O/P........?
     
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