question on schematic

Discussion in 'The Projects Forum' started by prescott2006, Feb 25, 2010.

  1. prescott2006

    Thread Starter Active Member

    Nov 8, 2008
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    is the another leg of the led in the red rectangle connected to ground?because i see it is floating there..
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
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    No schematic is visible. Please post it.
     
  3. MikeML

    AAC Fanatic!

    Oct 2, 2009
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    If these are LEDs, then the other end (cathode) is connected to GND, just like the one labeled LLO and LPWR.
     
  4. leewillz

    Member

    Jan 11, 2009
    17
    0
    should be connected or else they simply wont light up
     
  5. kubeek

    AAC Fanatic!

    Sep 20, 2005
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    Between those two pins could also be a bi-colour LED, so that one pin high and the other low makes one of the colours light.
     
  6. bertus

    Administrator

    Apr 5, 2008
    15,646
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    Hello,

    To look at the schematic it looks like a guitar tuner.
    The program in the PIC compares the input from the guitar with a reference in the PIC.
    As far as I can see there are three of those contacts.
    Probably the pins have the following function:
    LLO , a led for a to low frequency.
    LOK, a led for an OK frequency.
    LHI, a led for a to high frequency.

    I think the site where you found the schematic will have more info on it.

    Greetings,
    Bertus
     
    Last edited: Feb 25, 2010
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