A colleague gave me an 11C that he had stored for many years in a vertical position. This seems to have caused the display to have developed an irregular black stain along the top edge. The stain/blotch is present whether the calculator is on or not. It appears as if some of the liquid material in the display migrated down to the low side to create this stain. The calculator, including the display, is still fully functional and the stain does not extend into the area of the display where the numbers are displayed. Is there a way to reduce the size of the stain, such as storing it vertically in the other direction? Or will this only cause the stain to move down into the number part of the display and ruin what is currently a functional, if ugly, situation? Please post a response here and/or email me at c_j_falk@yahoo.com. Thanks in advance for any help.
Help with a general LCD problem in HP 11C (Voyager series)
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