Calculator Community > Casio Calculators

CFX-9850GB plus - Broken screen

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Keoni29:

--- Quote from: Jonius7 on August 12, 2013, 10:23:56 am ---Ouch, what's the state of the screen now? From what it sounds, desoldering did nothing to make it better (might have made the screen even worse!)

Btw I have the exact model Casio CFX-9850GB+ (white version).
One of my few graphing calculators.

--- End quote ---
Ribbon is destroyed. Screen entirely dead.


--- Quote from: DJ Omnimaga on August 12, 2013, 12:34:41 pm ---It sucks how they did it, preventing you from fixing the calc. Otherwise with a normal screen connector apparently it's really easy to fix. Is it true that sometimes it's just because the connection is dirty?

--- End quote ---
The connection cannot be dirty because the ribbon cable is soldered directly to the board, but the solder can dry a bit and crack thus making a bad connection.

So when you get a calc and see there are horizontal lines missing on the screen: it's not an easy fix. It is impossible to service with a normal soldering iron. Do not attempt to fix it because it will definitely brick your calculator.

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