► Bad LCD Screen Repaired - Casio Scientific Calculator

[@ivanivanych5959]

Hi! Thanks to you, i fixed a similar problem with my fx-992s. In my case, the problem was found on the LCD side: some of ribbon cable pins has lost a contact with the LCD. I fixed it using the soldering iron. At first, i fold a piece of aluminium foil to make 4 layers. Then this foil have been applied above the ribbon cable upon the area, where it's connected with the LCD. Then i heat the foil using my soldering iron (150 C degrees), and following its tip i move some silicone card to apply some pressure. My fx-992s is working again! Thanks a lot from Ukraine!

[@SevenFortyOne]

Excellent! I'm glad you got it working!

[@jayk5945]

Holy Crap! My TI 30Xa had something like this displayed .... didddiii instead of 888888. I was missing an attachment to my soldering iron so I carefully pressed the iron on a small wad of aluminum foil against the ribbon area. I carefully ran it across a few times. IT WORKED. I was about to chuck my 40 year old calculator before running across your video. I know it's only a $10-15 calculator, but it made my day. Thanks Dude!

[@SevenFortyOne]

Awesome 👍

[@rba897]

I got the same problem, with the TI 25x, i hope so fix that, your información i think to help me

[@diederikdenhartog7251]

Same here! Thanks for the video! Totally made my day seeing my 25 year old fx-82TL function again!

[@aminmm7855]

Man you saved me ! I've had my Casio fx85WA since 2010 and it had become so dear to me... and I've just fixed it by watching your video. I couldn't be more grateful ! Big up from Algeria.

[@jessicaandtrains7768]

Just found an old scientific calculator I had in 1998. Like yours the screen is missing segments. Though far more than yours.I have a heat gun so I'll try a similar approach before binning it. Thanks for making the video. It'll get a thumbs up from me. Maybe my daughter Jessica will end up using the same calculator in years to come.

[@ColinvanWaardenberg]

Just tried this with the iFixit iOpener, first time I was too quick to apply pressure, second time i had something else apply pressure and i let it sit for 10 minutes, then applied some extra pressure with my fingers afterwards and VOILA! I could really feel the contact point being hotter after letting it sit with the iOpener on it. Thx for inspiring and doing the quick show and tell!

[@ricxmat]

I replace a new polarized film on a CASIO FX 880P, with almost 30 years old! but have problems with some segments not working , your video help me to fix this problem , now i have 100% beautiful screen working like new!! Thank you very much for sharing your knowledge! regards from Brazil!

[@saurobaietta1885]

I think I've the same problem with my Casio 850 P and with a CASIO Z-1 I hope to be able to repair it: any supplemental advice before making a wrong step?

[@slavkog]

Thanks a lot sir for an idea! I have tried heating and pressing but did no good to me (i guess there isn't much adhesive left on my board), so i tried a different approach. I took a piece of soft material and placed it on the top of that problematic spot. It works like a charm!

[@jimtailor6609]

No fair that you diagnosed and fixed that calculator so quickly!

[@hwhack]

I have exact same VPAM calculator with the same issue! Thanks for the video! I've had the calculator since 1996 and learned everything from complex numbers to trig using it.

[@SevenFortyOne]

I used to know how to use most of the functions in this calculator but have forgotten most of it now

[@BMasse-lt1iv]

I bought a second hand calculator for NZD2 yesterday to give to my student. Battery was flat. Upon opening and changing, found the characters were not displaying properly across the whole screen. I used your technic with a hair dryer and that did the trick! Thank you so much for the tip: I will make a student happy, and I have saved e-waste! Nga mihi nui

[@SevenFortyOne]

Awesome 👍

[@warrensaunders]

Thank you so much! I had given up trying to fix my Casio FX-82 Super Fraction, but this was exactly what I needed to know!

[@peddersoldchap]

2:01 Is this 250º Celsius or Fahrenheit?

[@bencaulton4031]

Fixed my Casio FX-83WA display using this method. Thanks for making the video.

[@nrfchannel8580]

I've been using a similar model for 20 years. Good equipment I used it in high school and college. My son now uses it after replacing the battery

[@JohnHoranzy]

Thanks so much. I need to bring back one of my vintage collectables back to life. Never had this problem with my Slide Rules or Abacus..

[@KalleJohansson]

Worked great!! My fx100s from 1998 is revived for another 30 year's 😂😂😂 Mind you, I just replaced the original battery!!!

[@MrHomemdomato]

Thanks ! About to try this on my Fx-570w, hope i can fix the same missing lines as you

[@InsetSand740I97]

0:39 It’s Missing

[@watawatatag]

What is the name of the tool you used? Is it a soldering iron, but you’re only using the hot air and not making any contact with the components? If I don’t have one, would a hairdryer work?

[@SevenFortyOne]

It's called a hot air rework station. A har dryer probably won't get hot enough. But a hot air tool you can buy at a hardware store or maybe harbor freight might...I'm not sure

[@nikkowansaimon6143]

Thanks very much... From Valle de Chalco Solidaridad, Estado de México.

[@ThomasSchwinge]

Great! Just fixed my ~25 years old Casio fx-85WA that way -- using my bulky hot air gun. ;-)

[@dtyne67]

I just found 2 Casio CQ-82 alarm clock calculators. Boxed & probably never used. I stuck 2 batteries in but the displays are very faded. Is there a way to repair or replace them? They look ultra retro cool & I'd happily give one to someone who could fix one up for me.

[@victorb22622]

Sir, my yaesu ft441e lcd working stop after opening the rig 5o repair ffv,is there any clue to repair

[@karlacarvajal2254]

Y si le compro una pila nueva a mi calculadora vieja podría funcionar de nuevo ? Es que se le ven los números borrosos

[@landscapeholography]

Thanks!

[@SevenFortyOne]

Thank you!!!! Glad you found value in this

[@erolllanes8361]

how to fix same problem in casio fx100ms?thanks

[@ahmeterhanarik]

Thanks for the video. I was trying to do the same. Good to know, I was doing it the right way. Just need more heat!

[@saurobaietta1885]

I think I've the same problem with my Casio 850 P and with a CASIO Z-1 I hope to be able to repair it: any supplemental advice before making a wrong step?

[@SevenFortyOne]

Go slow and be careful...the plastic in these things are brittle and can crack easily

[@queen-nr9ge]

Hello, can you help me fix my fr-265rc calculator?

[@nickfatsis9607]

Does anyone know what the correct name for that ribbon cable is called, I have a damaged unit that needs a new cable, I can't seem to search for it because I don't know what it's called.

[@SevenFortyOne]

I think it is called a zebra strip

[@vijay00001]

Do you have any fix available for broken or damaged ribbon

[@zappzpp]

great video man! did you find any way to fix the other one? god I dropped mine too

[@SevenFortyOne]

Sadly no...I kept it for parts though

[@reenkp2175]

Thank you so much ❤ that was so helpful

[@bunnyjackson5341]

Please help. The screen of my calculator shows inverted numbers

[@ak56223]

Can i replace th LCD screen? as mine is showing darker color

[@SevenFortyOne]

It might be possible

[@skywalker165]

Simple & excellent solution, I think I also give a try to my Texas Instrument Calculator :) TI-36X Solar

[@AmmoBops]

Lol mine just went out as well (for the left segment on the first digit(most very right side digit) I was looking to buy a new one and then had a thought that maybe this was a common issue with an easy fix And so I went to KZbin, and wallah

[@AmmoBops]

Pls let me know if it worked

[@RanDom-pl7fx]

250 degrees what C or F?

[@angelom.9818]

Take a look at 1:50. 241°F

[@RanDom-pl7fx]

@@angelom.9818 Thnx, I blinked too long

[@AaronHuber]

Awsome fix job!

[@romina7386]

Le apliqué calor y toco esa parte que mostró pero no se arregla. Es solo el primer numero que se ve cortado, los demas que ingreso están

[@sampahumeoli]

ponele soldadura de estaño

[@adamk.1044]

Than you for the video. I have to try this .

[@just_in_time5518]

Nice fix!

[@VoelhoMobile]

Thanks! Saved my display too.

[@Caguidance]

How to fix Casio dj 120 d After replacing a battery It works for few minutes After that doesn't getting on. I don't knw how to fix this Hope you reply soon.

[@orakelgottes]

Thanks sir ... now I'm going to do the same with my broken lcd display

[@Alaxynova11]

What is the tool and what other thing can you use

[@SevenFortyOne]

What?

[@DonDegidio]

Hi Rob, Nice repair. Glad you were able to fix the problem. You and the family stay safe. 73 WJ3U

[@SevenFortyOne]

Thanks Don, you too!

[@ronaldspencer547]

Well done!

[@LutufLutuf-e8s]

Sir button lagane se calculator off ho jata he buttons nahi utha rahe he use kese theek karen

[@DevilsHandyman]

You erased your problems! I have to do something similar to an HP41C calculator that developed an issue with two segments during shipping.

[@buzzsah]

Good fix.

[@hadibq]

Nice, TY!🙂👍

[@kevinpalmer4137]

Very cool, thank you

[@0zebede]

Thank you

[@Dallas-Rife-UDX-347-Tennessee]

Very crafty . 👍

[@PinturasIreland]

Thanks a lot !

[@sampahumeoli]

i did the same and great thanks

[@gamingwithanascr7]

But the equipment no

[@SevenFortyOne]

7

[@mdoalidrhamanrhaman7091]

Tanazs