LCD malfunctioning when AC supply given to solar PCU

Discussion in 'General Electronics Chat' started by abhisheksolar, Jul 16, 2014.

  1. abhisheksolar

    Thread Starter New Member

    Jul 16, 2014
    1
    0
    the LCD is damaged in dispaly, i tried to change it and replaced it with 16*2 LCD. It worked well, when I switched on AC supply the display vanished, again i need to reset the system, again same problem when AC supply switched on. Display is also going away when I am fixing nuts to the front panel..
    Kindly suggest
     
  2. pwdixon

    Member

    Oct 11, 2012
    488
    56
    The answer to this could be almost anything. You need to be more precise about the problem, what is happening and perhaps post some pictures otherwise you won't get anything other than generalistic responses.
     
  3. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,769
    969
    schematic?
     
  4. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,386
    1,605
    It sounds like this "AC supply" is not the supply for the display protion, is that true?

    It also sounds like these "nuts" on the front panel may be supplying some sort of electrical contact, ground or such.

    Have any changes been made to the AC since it last worked?

    Can you post pictures of the unit?
     
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