20 Most Recent Casio SL300SV Basic Calculator Questions & Answers


Seems to be a common problem on this otherwise great calculator that helped me through both high school and university. I've had mine for nearly 20 years and this problem showed up a few years ago. But I remember classmates reported the same problem when it was almost new.

If replacing batteries isn't helping, the problem is most likely caused by oxidation on the springs connecting the battery holder to the main PCB. The solution is as follows:

1. Remove the metal back cover (2 screws)
2. Remove the plastic back lid by removing the black screws (leave the batteries mounted) and CAREFULLY slide the back lid to the lower end (where the EXE button is located). Do not lift while sliding until the lid easily comes off.
3. On the back side of the plastic lid, very carefully bend the the two metal connectors ~1 mm on both batteryholders to increase their tension.
4. Clean the connecting pads on the PCB and the metal springs with de-oxidizer solvent.
5. Re-assemble and your 4500P calculator should be good as new.

Casio Office... | Answered on Sep 12, 2019


Hello,
Here is a link to Casio New Zealand. Enter the model number for your calculator (with and wihout the hyphen, I don't remember which) and download a bilingual manual. The quality of the copy is to say the least ... Well, why not let you discover it for yourself.

Bye.

Casio Office... | Answered on Sep 03, 2019


Google (casio)(KL 400)(manual) without parens OR contact Casio directly with your request.

Casio Office... | Answered on Aug 25, 2019


the function buttons are labeled + and -
to add put in the number then press the + button then put in the next number and + and son for all the numbers you are adding up
to subtract put in a number then press the- button ,then put in the next number and press the - button and so on
to do a combination calculation put in a number then press the + button and so on until you come to a number that you want to subtract in which case you put in that number then press the - button and if the next number is to be added ,put the number in and press the + button

Casio Office... | Answered on Jul 06, 2019


DEBBIE LOOK IN THE OPERATORS MANUEL OR CALL CASIO CUSTOMER SUPPORT

Casio Office... | Answered on Jun 24, 2019


hello Christine C, posted to USA computer help.
first learn that USA computer are not the same as outside USA
(laws and such things)
I tried hard to learn what this is FX9860G AU
best I can tell it is a CASIO Calculator and is NOT a busted PC.
the manual is here.
read it yet?
put in new batteries, most used things with batterie's are for sure batteries NOGOOD now.
I will move you out of PCs to CASIO Calcs.

https://support.casio.com/storage/en/manual/pdf/EN/004/fx9860G_AU_EN.pdf

Casio Office... | Answered on Jun 06, 2019

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