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Question about Texas Instruments TI-83 Plus Calculator

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Dead Pixels? I have a bloch of dead pixels (scattered/dark blue) in the middle of my TI-83 Plus screen. Is there any manual method I can do with the keypad or maybe tweek some component inside? If not, where can I send my old, out-of-warranty calculator for the quickest, cheapest fix? Any direction would be helpful. Thank you

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I've heard that if you press on the dead pixels with your finger for a few seconds, sometimes they go away. I've also heard if you get a damp cloth, turn the screen off, press it on the dead pixels, turn the thing on, and remove the cloth, they might also go away.

Posted on Aug 09, 2007

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I have a black spot on left side of screen, how can I make it go away?

Dead pixels in the LCD wafer; common issue with LCD televisions as they age. Replace the LCD wafer or consider purchasing a new television.
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I have an old TI-83 and there are vertical lines across the screen which have dead pixels, I assume. Can this be repaired or do I have to buy a new one.

While someone skilled in electronics may be able to fix it with enough time, the cost in time and labor would far outweigh the cost of a new calculator.
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Dead Pixels

You cannot fix the bad pixels, it simply means your screen has been damaged OR there was a manufacturing problem (faulty hardware).

The phone should still be under warranty, you need to send it in to be repaired.

Post back for further help (Additional info). Thank you for choosing Fixya!
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Dead Pixels

Not much you can do about that, sorry. You could try to replace the screen but I would not suggest this without lots of electronic knowledge.
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Ti 83 plus problem

Dark Pixels == HIGH RESOLUTION

Solution:

Turn the Calculator on
Alternate between hitting the "2nd" button and down arrow key. This will lower your contrast, and make it easier for you to see!
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Toshiba regza lcd 46x3500

This is what is known as a dead pixel. If you have a standard wide screen lcd monitor it has over 1 million pixels. It is not super un-common for one to go bad. It will either always be dark or in your case always be lit. It is not worth it to repair, and in most cases unless you have multiple dead pixels with in a square inch of screen, it is not covered under warranty either.
Each pixel is individual and the problem will most likely not spread.
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TI-83 LCD Screen Problem

Try replacing both the AAA batteries and the back-up batteries. This should probably fix the problem.
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