lightforms Posted May 5, 2008 Report Share Posted May 5, 2008 Hi A quick question that may make me seem quite foolish.I am not certain but i think my lcd is an extended type as the backlight works but there is nothing on the screen. The screen is a YJ-162A 16x2. I have used the mios prog and checked the power on the pins and all looks good and i have rechecked my pin config and soldering both seem ok.The question is having wired up my lcd the wrong way plugging it in and powering it up and then working out that i had mixed up the data and power pins have I broken it or are they reasonably durable and should I invest more time in making a -5V circut or should I just get a new lcdthanks d Quote Link to comment Share on other sites More sharing options...
stryd_one Posted May 5, 2008 Report Share Posted May 5, 2008 having wired up my lcd the wrong way plugging it in and powering it up and then working out that i had mixed up the data and power pins have I broken it or are they reasonably durable and should I invest more time in making a -5V circut or should I just get a new lcdErrr... Your post is a bit fuzzy on the details.... So you applied -5V to one of the data pins? Maybe you did fry your LCD.... Quote Link to comment Share on other sites More sharing options...
bugfight Posted May 5, 2008 Report Share Posted May 5, 2008 did you adjust the contrast trim pot? Quote Link to comment Share on other sites More sharing options...
TK. Posted May 5, 2008 Report Share Posted May 5, 2008 The question is having wired up my lcd the wrong way plugging it in and powering it up and then working out that i had mixed up the data and power pins have I broken it or are they reasonably durable and should I invest more time in making a -5V circut or should I just get a new lcdyes, it's very likely that the LCD has been fried because of (temporary) mixed data/power linesBest Regards, Thorsten. Quote Link to comment Share on other sites More sharing options...
doc Posted May 6, 2008 Report Share Posted May 6, 2008 I also think, the lcd is broken.greetsDoc Quote Link to comment Share on other sites More sharing options...
nILS Posted May 6, 2008 Report Share Posted May 6, 2008 me, too!(sry, couldn't resist) Quote Link to comment Share on other sites More sharing options...
lightforms Posted May 6, 2008 Author Report Share Posted May 6, 2008 Thanks all for your responses I think I will go and buy myself a new lcd.I managed to mix up the power and data pins when I first wired it up due to not paying attention to which pins went where in the IDCThanks again Quote Link to comment Share on other sites More sharing options...
stryd_one Posted May 21, 2008 Report Share Posted May 21, 2008 Seems kooky but that was my experience FWIW...Uhm sure does.... this isn't adding up... At least for me. But I'm crazy so maybe you can explain :)1) DIN pins have nothing to do with the LCD2) Why are you surprised that a 'fried' LCD didn't test correctly?3) Why are you surprised that a new LCD works fine?4) How are, the test results of a fried LCD, and the actual performance of a new LCD, related?5) How do you know it was fried? Quote Link to comment Share on other sites More sharing options...
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