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Thread

Is my LCD screen going bad?

Is my LCD screen going bad?

2014-07-21 by electrow2000@...

I just bought a MP 7 a few days ago.Today I had it on all day when suddenly the display lost almost all contrast. The only way I can barely read anything is by looking at the screen from an angle of 70 degrees or more. I have tried adjusting the viewing angle in the global setting. It has no affect.


If I do need to replace the LCD is it difficult to do?

Re: Is my LCD screen going bad?

2014-07-21 by narfman96@...

I have a P2k that needed a trimpot bias adjustment for the display. The voltage coming from the main board would not allow the contrast to display properly. A 1k trimpot connected to +5 and -5 volts with the center leg feeding the contrast adjustment pin on the LCD took care of the problem. I'm not sure if it was the display or the main board.