2X16 LCD "how to check"

Discussion in 'General Electronics Chat' started by linuxnss, Dec 18, 2012.

  1. linuxnss

    Thread Starter New Member

    Dec 13, 2012
    1
    0
    Hi every one ,
    kindly i used LCD in my project but before i use it i just want to confirm that the LCD didn't damage ,can one help me to check that

    LCD contains 16 pins

    i tried to apply +5V to pin2 and GND to pin1 but no sign is that mean that LCD damaged or there is another way to check it


    Many Thanks
     
  2. Ian Rogers

    Active Member

    Dec 12, 2012
    392
    96
    You'll need ground on the contrast aswell (pin 3)
     
  3. MrChips

    Moderator

    Oct 2, 2009
    16,745
    5,136
    The only way of testing that I can think of is to find a working system with a working LCD and substituting in the suspect LCD.
     
  4. nerdegutta

    Moderator

    Dec 15, 2009
    2,674
    918
    Yes, the LCD display needs something to display. Connecting the power and constrast wires won't display anything. Unless the LCD have a self test button.

    Do you have model number or something...?
     
  5. GopherT

    AAC Fanatic!

    Nov 23, 2012
    8,025
    6,784
    ScottWang, mkbutan and absf like this.
  6. mkbutan

    Senior Member

    Sep 30, 2008
    275
    16
  7. spinnaker

    AAC Fanatic!

    Oct 29, 2009
    6,644
    2,928
    There are commercially available testers for LCD. Search on ebay. You might find one. I built one.
     
  8. ScottWang

    Moderator

    Aug 23, 2012
    6,258
    970
Loading...