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| Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Can an old LCD calculator display be fixed
I came across an old PC keyboard with a built in calculator (Focus 3001). The calculator appears to work but a lot of the segments on the display don't. Is it likely that the chambers with the liquid crystal stuff leaked or broke down over the years. -- Mark Healey marnkews ãt healeyopolis döt com |
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#2
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Can an old LCD calculator display be fixed
Mark Healey wrote: I came across an old PC keyboard with a built in calculator (Focus 3001). The calculator appears to work but a lot of the segments on the display don't. Is it likely that the chambers with the liquid crystal stuff leaked or broke down over the years. It's likely that the zebra strip connecting the display to the circuit board has gotten dirty or displaced, take it apart and clean it with warm soapy water, careful not to stretch it out. |
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#3
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Can an old LCD calculator display be fixed
On Wed, 11 Jun 2008 03:14:51 +0000, James Sweet wrote:
Mark Healey wrote: I came across an old PC keyboard with a built in calculator (Focus 3001). The calculator appears to work but a lot of the segments on the display don't. Is it likely that the chambers with the liquid crystal stuff leaked or broke down over the years. It's likely that the zebra strip connecting the display to the circuit board has gotten dirty or displaced, take it apart and clean it with warm soapy water, careful not to stretch it out. It doesn't have one. It is one of those flat ribbon cables that seems to be permanently fixed to the display and soldered to the board. -- Mark Healey marnkews ãt healeyopolis döt com |
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