Question about Tech Solution TS-900 Calculator

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On/off button does not work

I have not used this machine in some time, 4 years. I did replace the battery, but the only way I can turn it on is by pressing the AC key. When I do the display only shows 0. The numbers that I press will not show up on the display. What is wrongg here?

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The ac key is you power on key. As far as not being able to input any numbers, make sure there is not a key that is stuck down or depressed. if so try to lift is up and you should be ok. Unless there was a liquid spill. In that case, cheaper to buy a new one.

Posted on Jun 16, 2007

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Posted on Jan 02, 2017

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2.2
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Option No1:


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------------------------------------------------------------
Option No. 2:


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