How to fix a Scientific Calculator Cannot Turn/Power ON | DIY Repair Casio Scientific Calculator

#calculator
#fixcalculator
#casio
#casiocalculator
Some calculator comes with an LR44 Alkaline battery. If it has run out then you will need to replace it. You must have used it an incredible amount as with the solar panel, power for the calculator should last for ages. Either that or it is damaged.If the calculator won’t not turn on after replace a new battery,you may try to solve it by follow method in this video.
Casio Calculator Model Series:
fx-CG20
fx-4500PA
fx-FD10 Pro
fx-992s
fx-991ES
fx-9860G Slim
fx-9860G SD
fx-9860G
fx-9750GA PLUS
fx-9750G PLUS
fx-901
fx-85ES
fx-82MS-BU
fx-82ES PLUS WE
fx-82ES
fx-820MS
fx-7400G PLUS
fx-65
fx-570VN PLUS
fx-570ES
fx-570MS
fx-50FH
fx-50F PLUS
fx-50F
fx-500VN PLUS
fx-500ES
fx-3950P
fx-3650P
fx-350ES
fx-115MS
ClassPad 330 PLUS
ClassPad 330
CFX-9850GC PLUS ALGEBRA
FX 2.0 PLUS
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[@domi9905]

Thank you, I had the same problem with my calculator and tomorrow is my test in calculus. Thanks for the Vid!

[@TonaziTube]

You’re most Welcome! Good luck for your test….

[@yebbejupalaparthi7003]

I'm also facing same situation but when I screwed it open the problem is exactly, same you're video helped me a lot thank you

[@TonaziTube]

@yebbejupalaparthi7003 You’re most welcome 🤗. Im so glad it was helpful!

[@user-bf3sk5yh2j]

Thank you for this great sharing

[@TonaziTube]

You’re most welcome!

[@markkiok9611]

Thanks for the nice video. I check the wirings using a volt meter. The lines are okay. But the calcu still wont work. I need your help thanks

[@TonaziTube]

You're most welcome! There a many possibility cause can create the problem ,try to check the power key contact first.

[@Anis-uq5bg]

Thanks bro you save me

[@TonaziTube]

You’re welcome Anis…..

[@beyourself6778]

Thanks a lot 🙏

[@TonaziTube]

You’re are most welcome

[@nazzchannel5145]

Thanks bro

[@TonaziTube]

You’re most welcome

[@Ctra-Adonis]

Eso lo hiciste intensional, es demasiado fácil de hacer

[@TonaziTube]

Esto es realmente lo que le pasó a mi calculadora. Verdadero problema al compartir

[@Erick-mo7vw]

Hello, is there a way to fix the sine, cosine and tangent keys? What happens is that when you press the keys they don't work and if it is possible to fix it, please or should I buy another one?

[@TonaziTube]

You need to open and check the board if want to repair it.May be got a break circuit connection , contact or carbon issue at the button area.

[@BlissNett]

Hello Please what of in a case where the battery is not up there but in the middle of the calculator, where there are no wires, what do I do? I have a Casio fx-991ES Plus and an fx-350MS both with the same issue. They only turn on when I remove the battery and put it back.., but the power-on button doesn't turn the calculators on

[@TonaziTube]

Hi ! Thanks for watching.Possiblity There a many issue ,one of the issue is button contacts at rubber key. You may refer below link video as reference.Hope may solve your issue. kzbin.info/www/bejne/paXIpYiLlsZ7gK8

[@prabatbhurtel374]

Bro from where do we get that device ?is that glue or what ? And What can we use instead of that

[@TonaziTube]

I’m using soldering iron and solder lead to repair the wire connection.A soldering iron is a hand tool used to heat solder, usually from an electrical supply at high temperatures above the melting point of the metal alloy. This allows for the solder to flow between the workpieces needing to be joined. You can use anything that is able to heat a piece of metal up to the melting point of your solder (between 400°F / 200°C and 700°F / 370°C). Butane lighters work the best. But you can also use candles, oil lamps, alcohol burners, or even open camp fires.

[@vdjnaresh7391]

Tq so much bro 😎

[@TonaziTube]

Welcome Sir!

[@zabalaemmanuelc.6246]

Can I used any kind of glue to fix the wire?

[@TonaziTube]

You can try super glue

[@intelcorei0364]

I disassembled mine and discovered that the ground wire was corroded, so I stripped it and soldered it, as shown in the video.

[@TonaziTube]

Thanks for sharing your experience!

[@soonyicheng]

My calculator somehow can be used again after i opened the case... but still thank you for teaching me how to open the case!

[@soonyicheng]

never mind the ground wire is also corroded

[@TonaziTube]

Hope you can solve it

[@realstorm2351]

My calculator is very dim in battery power, i changed new battery but same issue, checked continuity test, continuity is perfect, then checked output power on board, it shows 1.48, so everything is fine, but display is dim... and the calculator is fine with solar power, the issue is in battery power, any solution sir??

[@TonaziTube]

Look you’re familiar with electronic test knowhow.It might be voltage issue inside the board circuit.Difficult for me to advise without see the board condition.

[@zainamjad8468]

Bro what if the wire is broken from the board?

[@TonaziTube]

Got 2 wires for battery connection to board.This wire supply voltage 1.5V from battery to board.If broken, possibility no contact and cause calculator can't power on.

[@awetimileyinoluwakemi7057]

I lost my Casio calculator and found outside on the road, rain fell on it and I opened it to dry it It worked and after I left it to dry it didn’t work anymore

[@TonaziTube]

May cause by deffective of electronic component inside.

[@prabatbhurtel374]

Can we use super glue to paste that Wire?

[@TonaziTube]

Can use super glue but pls make sure the copper wire have a good contact to the solder of the calculator pin.Otherwise it will come out again.

[@TonaziTube]

You can use anything that is able to heat a piece of metal up to the melting point of your solder (between 400°F / 200°C and 700°F / 370°C). Butane lighters work the best. But you can also use candles, oil lamps, alcohol burners, or even open camp fires.

[@ammu9435]

My calculator is celect company, problem is not working . same Process to proceed this calculator

[@TonaziTube]

Hopefully the problem is solved

[@ppc4061]

What if digits in display is not visible?

[@TonaziTube]

Need to check battery continuety first.

[@aashishreddy9398]

bro in sunlight calculator is working but When Replaced new battery not working

[@TonaziTube]

Check the battery is put in correctly and not with reversed polarity. Check the battery is new and in date. Clean the contacts of the battery holder. Check for damage to the battery contacts

[@ezy2cook]

👍

[@TonaziTube]

Thanks for watching

[@shamilahacio579]

What if the black wire got separated?

[@TonaziTube]

Black wire (Negative)connect to the battery supply at negative terminal.Calculator in this video can’t power on is due to black wire is disconnected from battery supply.(No supply voltage to the calculator). Note: Red wire (Positive supply) Black wire(Negative- Gnd)

[@TonaziTube]

Need to connect red wire and black wire to complete the circuit of voltage supply to calculator.

[@pawankumarlohade970]

Ka booommmm

[@TonaziTube]

😀

[@yunytotoro7184]

Naaa, what is I don't have that burn tool to repair😢 struggle a lot

[@TonaziTube]

The tool use is called Soldering Iron.Beside it,you can use Candle or Lighter to melt the the solder and stick the wire connection back.Also can use super glue to stick the wire contact to solder of battery terminal.

[@balajibolt4222]

Bro i brought dr smartx calculator at flipkart last month now it's not working. Like not turning on can u pls help and guide me what to do

[@TonaziTube]

Did you check and confirm the battery voltage?

[@balajibolt4222]

No bro

[@balajibolt4222]

I think should I open and check the connections of wire or should I change the battery

[@balajibolt4222]

Bro pls reply

[@TonaziTube]

Pls do simple way first.Replace the battery.

[@virendraprajapati1669]

Bhai mere ka on button kaam nhi kr raha hai

[@TonaziTube]

dekhane ke lie dhanyavaad. krpaya any taar kanekshan ya baitaree star kamajor jaanchen ya nahin.

[@TonaziTube]

Thanks for watching.Please check other wire connection or battery level weak or not.

[@virendraprajapati1669]

@@TonaziTube all perfect but only on button not work

[@TonaziTube]

Could be a variety of problems, more than likely a worn or malfunction of the key circuit.

[@dirorerero]

Como soldar un cable. Perdida de tiempo!

[@TonaziTube]

Use un soldador y plomo. También puede usar plomo de soldadura y un encendedor. Si tampoco tiene las herramientas, puede torcer el cable manualmente hasta el pin de la batería.

[@dirorerero]

@@TonaziTube cambia el título de la publicación...te lo dice un técnico en electrónica.

[@rockygaming3663]

Its turning and when I put take and put battery but once turned off can't on 🥲

[@TonaziTube]

Maybe got connection issue inside the calculator.