Why is my calculator not turning on?
For a while now my calculator just stopped turning on, and till date I have no idea why?
Though it constantly fell before this happened
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According to your calculator's User's Guide,
A low battery is indicated by a dim display, even if contrast is adjusted, or by failure of figures to appear on the display immediately after you turn on the calculator. If this happens, replace the battery with a new one.
Important:
Removing the battery will cause all of the calculator’s memory contents to be deleted.
The guide can be read here.
Someone actually went to the trouble to make an actual guide to that battery replacement.
Casio FX-991EX Battery Replacement - iFixit Repair Guide
The upshot is, a dead battery, even though your calculator has solar power, can still cause a blank display, so replace that button cell battery first, then let us know if it starts working or not.
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Thanks a lot, I'll do that then
@tzion79544 Sounds good, let us know if that fixes it.
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I’d start with the battery and battery contacts. Even though this model has solar power, a dead battery can still cause a blank display. Since the calculator was dropped repeatedly, if a new battery doesn’t fix it, I’d check for loose or damaged internal connections.
Alvin さんによる