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楼主 |
发表于 2010-2-8 21:24:11
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没敲
Isn't it "F2"?
"F2" "Ln(" "OPTN" "," "→“ and "↓" correspond to bit 7 of the MPU-port B (on the slim). Maybe bit 7 of port B is broken or there is a weak solder joint. If guarantee has run out, you could disassemble the calc and have a look. It is not very likely, but perhaps you are lucky and the reason is only some dirt or corrosion on the PCB.
以上是卡西欧王国的外国朋友的回答 |
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