Lcd Not Working..

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  1. - 14th June 2005, 18:27 #1
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    Dwayne
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    That is a high voltage drop....
    ARe you SURE your LCD is a low current LCD??? There are LCD's out there that take 300 mils to run! I happen to have 2 of them...And they will blow a unsinked 7805 in a extremely short time... and will blow a 7805L in a even quicker time.

    How about your LCD's display contrast? is it adjusted correctly? usually a 10K pot with center going to your contrast pin and ends going to +- is all that is needed....Adjust pot until black squares show up. Some LCD's do not need this pot...Some do.

    Dwayne
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  2. - 14th June 2005, 19:23 #2
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    I Have uploaded the datasheet.
    As far as my knowledge go it looks like max Module Supply Current 2.0 mA.

    I have connected a pot, but nothing happened when I turn it from one side to the other.
    Have tried a 10k and 100k pot, but no one is working?
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