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Basic Electronics » LCD problem

March 08, 2011
by th720
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Hello all, I am working on the temperature sensor project, and for some reason this morning the LCD showed black squares when viewing from a direct angle, and when you look at it from the side, you can vaguely read the text. I tried swapping out contrast resistors with the same ohms rating, and that did not work. Earlier, I accidentally put in the voltage regulator backwards after taking it to re-connect the power wires. Could this be burnt out? Just now, I took out the voltage regulator for about 5 seconds, and there was absolutely no change on the LCD screen. Thanks!

March 08, 2011
by th720
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Disregard. Had a minor error in wiring.

March 08, 2011
by Ralphxyz
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Oh, really, been there done that. Welcome.

Ralph

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