# Non functioning number key

One of the number keys (#6) does not function; for example, if I enter a number which includes a 6, the six does not get entered

what might I do to reactivate this key?

thank you

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• Contributor

Probably just need to resolder the switch for #6, should just need to have the soldering iron touch the solder to re melt it. worth a try.

Posted on Mar 09, 2008

Hi there,
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Posted on Jan 02, 2017

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We are asking what number, times itself, is equal to 30. Five times itself is 25. Six times itself is 36. The answer is somewhere between 5 and 6. Let's split the difference and try 5.5. 5.5 times 5.5 is 30.25. This is above 30, so let's try a smaller number, 5.4. 5.4 times 5.4 is 29.16. This is lower than 30, so we need a higher number. How about 5.45? I get 29.7025. We need a number a little higher. How about 5.47? I get 29.9209. Still need a little higher. How about 5.48? 30.0304. So it is somewhere between 5.47 and 5.48.

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### How to convert this copier from inch to metric system??

SELECTING THE ORIGINAL SIZE
If you loaded a non-standard size* original or the original size was not correctly detected, set the original size manually.
Perform the following steps after placing the document in the document feeder tray or on the document glass.
1 Press the [SPECIAL FUNCTION] key.
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DUPLEX
SPECIAL FUNCTION
ACC.
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DUPLEX SCAN
SPECIAL FUNCTION
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ORIG. SIZE ENTER
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GH
PQR
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DUPLEX SCAN
SPECIAL FUNCTION
SPECIAL MODES
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PAPER SIZE SET
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GHI
BACK OK
ORIG. SIZE ENTER
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81 x11
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1
2
INCH
ORIG. SIZE ENTER
11x17
8 x14
8 x11
INCH
1
2
1
2
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B4
A4
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### Sharp Calculator EL2630

apply a dry contact cleaner over the defective key and press it many times until it becomes fine if this does not work will.
please follow me:-1- use a *****driver and get out *****s in the bottom(normally 4-5 *****)2-open the machine you will find the keyboard and many small *****s remove all with small *****driver.
3-remove key bad out and clean it with water-dry it carefully and return it back put all *****s back and test your calculator.

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