How to repair Casio fx 991 es plus LCD | LCD Repair | LCD black spot | Display repair | Most
Тәжірибелік нұсқаулар және стиль
Why Your Calculator LCD Has Black / Blue Spot? This is how I repaired my calculator display. Most users have this problem.
This is good for any LCD display. Calculator, multimeter, electronic keyboard display, speedometer display etc. Since this is my 1st video, there will be mistakes in making the video. Sorry for that. Try this at your own risk. Thank you.
#how to #lcd #display #repair #casio #calculater #fx #991 #es #plus
Пікірлер: 356
3:03 It is not polarized film.It is a reflective film.Sorry for that
@ravichandel8690
2 жыл бұрын
polarized film can i use it if i get
@howtodo22
2 жыл бұрын
@@ravichandel8690 I didnt understand.Explain please
@gonzalounamunzaga
2 жыл бұрын
Sorry for my bad english. Do you can explain better for the silver papper please? Or say me any link to I understand. Thanks. Have a good day.
@howtodo22
2 жыл бұрын
@@gonzalounamunzaga We need only a reflective surface.Silver paper is cheap and easy to find.Thats why I used it.You can use any material that reflect like wrapping covers of biscuits, milk powder package etc.
@gonzalounamunzaga
2 жыл бұрын
@@howtodo22 thank you very much! I'm going to buy those biscuits then 👍🏻
I'll bet you never realized how much this video helped, at least to one particular person who really loved his device.
@howtodo22
2 жыл бұрын
Thank you very much for your lovely comment.It is inspiring me for more stuffs.Keep in touch.Cheers❤️
Thanks for the video. I repaired my calculator according to the instructions and now it works perfectly.
@howtodo22
2 жыл бұрын
Great!!! Thanks for the comment ♥️
Well done young man. A very helpful video which can be used for all similar LCD screen issue. God bless you and your family.
@howtodo22
2 жыл бұрын
Thank you very much. Stay tuned for more. God bless you and your family also. Cheers ❤
Awesome! Good job!! I don't have the guts to do it for my casio but this is a good guide :)
@howtodo22
3 жыл бұрын
Yes.It is a risk.Must done carefully.Thank you for the complement❤
I did it according to your instructions and it worked perfectly. Thank you so much. Very helpful and I am happy.
@howtodo22
Жыл бұрын
Happy to hear that. Thank you for the complement. Stay tuned for more. Cheers ❤
many models of other brands does not have a back metal plate. removing the silver film is as easy as picking the corners of the film and peeling it off. tweezers help. for those models there will be no need to use glue dissolving solvent. ive fixed 1 multimeter and 2 calculators to date. no issues. FYI i use white paper as replacement. works fine. hope anyone who reads this find it useful. have a nice day
@howtodo22
Жыл бұрын
Yes you may be correct. We can try different materials as reflective film. I don't have any experience with any other display models. If you say so,it may easier than this. Thank you very much for sharing your knowledge and experience with us. Stay tuned for more. Cheers ❤️
@ABC-ed8cg
10 ай бұрын
Can we do away with the silvery film/paper altogether? The numbers look fine without the silvery back paper…
@howtodo22
4 ай бұрын
@@ABC-ed8cg Its up to you. One way or another, our goal is to see the digits properly
Thank you so much!! I was suffering from this problem for long time! Thanks a lot!
@howtodo22
2 жыл бұрын
You are welcome.Hope you solve the problem.Cheers❤
Awesome! Will try this with my old casio. Very nice "how to". 👍
@howtodo22
2 жыл бұрын
Thank you very much.Stay tuned for more.Cheers❤
Good Job, Thank you Nish, That really usefully for us. Keep it up, waiting for next video.😀👍
@howtodo22
3 жыл бұрын
Thank you very much❤
Most welcome for your next video 👍🏻👍🏻
@howtodo22
3 жыл бұрын
Thank you very much ❤
This was really helpful good job keep up the good work and thanks 🤙🏾 !
@howtodo22
2 жыл бұрын
Thank you very much. Stay tuned for more ❤
15 minutes before I damaged my calculator display carelessly and I am fortunate to find your video
@howtodo22
2 жыл бұрын
Thank you for your comment.Cheers ❤️
Nice to find your video. I will open mine tomorrow. Thank you very much!!!
@howtodo22
2 жыл бұрын
You are always welcome. Cheers with that ❤
Tried this method, worked perfectly on 991EX model. Thank you.
@howtodo22
Жыл бұрын
Happy to hear that. Thank you very much for your comment. Stay tuned for more.Cheers ❤️
Thank u God Bless keep up the good work. I'll try to remember of not im right back here watching this again thanks for the help!!!
@howtodo22
3 жыл бұрын
Thank you very much for your kindness.All the best ❤
For a first video this is very good, nice work 👍
@howtodo22
Жыл бұрын
Thank you very much for your comment. Stay tuned for more. Cheers ❤️
Idk about the other but ur video and after 2 years after u posted it it helped me a lot with my small business thank you a lot bro ❤
@howtodo22
6 ай бұрын
I m so happy to hear like this❤. Thank you for your comment. Cheers ❤❤
Nice video, deserves a lot of likes and sharing.
@howtodo22
Жыл бұрын
Thank you very much for your kindness ❤️ .Stay tuned for more. Cheers ❤️
Your operation with calculator is successful 😄 Good "Calculator Doctor"..
@howtodo22
Жыл бұрын
Yeah 🤭 Thank you ❤️
Simple and result oriented.Thank you
@howtodo22
2 жыл бұрын
You are welcome and thank you for the comment.Stay tuned for more.Cheers❤️
Thanks a lot of bunch 🤟 I am watching your video from Bangladesh 🇧🇩 i have a lot of benefited from your video ✌️ Keep it up 🧠
@howtodo22
2 жыл бұрын
Thank you very much for your love and support. Keep in touch for more. Cheers ❤
Awesome job man! Thanks for sharing your knowledge: this is really helpful! Stay safe and God bless you and your household in Jesus' name, amen!
@howtodo22
2 жыл бұрын
Thank you very much for your kindness.Stay safe ❤
thank you so much for this video.... it helped me fix my calculator without having to buy a new one which is very expensive....
@howtodo22
Жыл бұрын
Yes.Buying a new one is kind of impossible for many. Thank you for the complement.Stay tuned for more.Cheers ❤️
Thanks a lot! You've saved me lot of bucks
@howtodo22
2 жыл бұрын
Happy to hear that.Thank you for your comment.Cheers ❤️
Kadapan serama kadapan..kadala hadapan..good job bro👌🤣🎉
@howtodo22
3 жыл бұрын
😂😂 thanks brother ❤
Adoo, Gammk sago, wade goda❤
@howtodo22
4 ай бұрын
Adoo elakiri. Subcribe karala thiyagamu ehenam. Jayawewa ❤❤
hey tysm! im using my brothers old calculator bought 10 years ago.. i was almost considering buying a new calculator cuz how bad the display was.. so now I can just do this.. tysmmm!!
@howtodo22
Жыл бұрын
Thank you so much for the comment. Stay tuned for more. Cheers ❤
Brother you have done a good job. It's so useful vedio for me. Thank you so very much 🥰
@howtodo22
2 жыл бұрын
Thank you very much for your kindness.Stay tuned for more.Cheers❤
Good job brother, Keep it up ❤️❤️❤️
@howtodo22
3 жыл бұрын
Thank you❤
Excellent work!
@howtodo22
2 жыл бұрын
Thank you.stay tuned.Cheers❤
උඹත් එක්ක කිසි බඩුවක් ගෙදරක තියා ගන්න බෑ... ඔක්කොම කනවා.... කෑවට කමක් නෑ ආයේ හදපං සාන්ත 🤘👌👏😍
@howtodo22
3 жыл бұрын
😂😂 අනේ බං ඉතින් හිතලා කඩාගත්තේ නෑනේ.කැඩුනා.හැදුවා 🤭. තෑම්ක්ස් බොක්ක❤
Very very useful video
Keep it up brother ❤️💪
@howtodo22
3 жыл бұрын
Thank you brother ❤
Lemme try to do myself,thanks for guidance ❤️👍
@howtodo22
3 жыл бұрын
Thank you for the comment.Good luck for you.Cheers❤
This is awesome video!
@howtodo22
2 жыл бұрын
Thank you very much.Stay tuned for more.Cheers♥️
Great work Thanks
@howtodo22
3 ай бұрын
Thank you. Subscribe and help to grow more ❤❤
Thanks a lot bro for this video.❤️❤️❤️🙏
@howtodo22
11 ай бұрын
You are welcome. Stay tuned for more. Cheers ❤️
Thank You for this Video
@howtodo22
4 ай бұрын
You are welcome. Stay tuned for more ❤❤
Thank you so .much it was useful.
@howtodo22
Жыл бұрын
Thank you very much for your comment. Stay tuned for more. Cheers ❤️
Great video. Tried this with my calculator but I must've broken the display. It still works but it can only display a few items. If I try to type in a large number, it gets dimmer and dimmer until I can't see it. This also means that I can't see pages like the setup or mode. Bummer Edit: Giving everything inside a good wipe with a dry tissue seems to have helped. The problem is still there, letters get a bit dim in the MODE page for example. But at least I can read them, and the calculator is usable now for my purposes.
@howtodo22
24 күн бұрын
If display getting dimmer,most probably it will solve when replacing the battery. Make sure battry connected wires are properly connected and then replace
@MeLSL1
24 күн бұрын
@@howtodo22 Thanks for the reply. Replacing the battery did not help. Nothing wrong with the connections either. It's like the screen can only display a limited number of pixels
@MeLSL1
24 күн бұрын
@@howtodo22 I was able to fix it by giving all the parts inside a good wipe. The residual alcohol must've been messing with the display. Thanks again!
Great job brother
@howtodo22
3 жыл бұрын
Thanks brother ❤
Thank you so much. I have fixed my 570 ES. Lcd was completely unreadable. Now it looks great.
@howtodo22
3 жыл бұрын
Happy to hear that.Cheers❤
superb bro !!❤🔥
@howtodo22
Жыл бұрын
Thank you bro ❤
Keep it up
@howtodo22
Жыл бұрын
Thank you. Stay tuned for more.Cheers ❤️
It clarified my Doubts
@howtodo22
4 ай бұрын
Happy to hear 😍😍😍😍
Great brother
@howtodo22
3 жыл бұрын
Thank you ❤
Great content
@howtodo22
Жыл бұрын
Thank you very much. Sta tuned for more. Cheers ❤️
Nice video brother keep it up
@howtodo22
2 жыл бұрын
Thank you very much for the comment.Stay turned ❤️
Keep it up sir :)
@howtodo22
3 жыл бұрын
Thank you very much. ❤
Xcellent
@howtodo22
Жыл бұрын
Thank you very much. Stay tuned for more.Cheers ❤️
Good job
@howtodo22
Ай бұрын
Thank you. Stay tuned for more. Cheers ❤❤
Great!!! It work!! Thankyou!!
@danujacolombage6351
3 жыл бұрын
Also will this work on lcd panels which have a back lights?
@howtodo22
3 жыл бұрын
Thank you for your comment.Stay with us.Cheers ❤
@howtodo22
2 жыл бұрын
@@danujacolombage6351 I cant say it exactly bro.Sorry
I have no word, to thank you
@howtodo22
2 жыл бұрын
You are welcome. Stay tuned for more. Cheers❤
Excellent guide.
@howtodo22
2 жыл бұрын
Thank you for your comment.Stay tuned for more.Cheers❤️
Good.
@howtodo22
Жыл бұрын
Thank you very much for your comment. Stay tuned for more.Cheers❤️
Obrigado pela dica.
@howtodo22
2 жыл бұрын
You are welcome ❤
Thank you sooo much broooo😍😍it worked❤
@howtodo22
2 жыл бұрын
Happy to hear that.stay tuned.Cheers❤
good work bro
@howtodo22
2 жыл бұрын
Thank you❤
Nice Talent thank you
@howtodo22
3 жыл бұрын
Thank you for the comment.Cheers❤
The "damaged" film you removed was not the polarizing film, its just the reflector, but your repair is effective nevertheless.
@howtodo22
2 жыл бұрын
Yes. It was a mistake. I have pinned a comment with the correction. Thank you for your comment. Stay tuned for more. Cheers ❤
Had been facing the same problem alike, I was fixing it and used surgical spirit (80% Isopropyl alcohol) in excess. And for the reflective film used junk wrappers 😅. After I assemble it. Couldn't turn ON. Get disappointed and ordered new one that cost a thousand on Amazon online shopping. After a few hours, out of curiousity I was trying it for the last time and astonishingly it works. Could have been due to gradual drying of the wet LCD display.
@howtodo22
8 ай бұрын
Oh god 😂😂 btw now you have a backup in case 🤭
AWESOME
@howtodo22
3 жыл бұрын
Thank you ❤
Nice maan ♥️⚡️💯
@howtodo22
3 жыл бұрын
Thank you for the comment ❤
It's reallylity show ❤❤
@howtodo22
3 ай бұрын
Thank you.subscribe and help to grow up ❤❤
Nice bro 👌🔥❤️
@howtodo22
2 жыл бұрын
Thanks bro❤️
I used white paper as a replacement of a polarizer worked great 👍
@howtodo22
2 жыл бұрын
Happy to hear.Stay tuned for more.Cheers❤️
@1zanglang
Жыл бұрын
That is not polarizer. The polarizer is a film, smoke semi transparent colour, laminated on the back and on the front of the LCD. The glue he cleaned out from the back of the display, was in fact, scraped from the back polarizer. The silver foil he removed was just a reflective foil, glued to the polarizer. If you remove a polarizer from an LCD panel, you would not be able to see anything on that screen.
@manikology
Жыл бұрын
@@1zanglang maybe, i Didn't know the name then
very nice thank for you
@howtodo22
2 жыл бұрын
You are welcome.Cheers ❤
Great I have same issue... Now can fix it
@howtodo22
3 жыл бұрын
Thank you and good luck with that ❤
Thankyou ❤
@howtodo22
4 ай бұрын
You are welcome
Bro..good work. Btw the damage film is not a polarize film it's just to reflect the light which falls on the screen. Polarize film is that thin film which is glued on top of the lcd. You can also use aluminium duct tape. 😊
@howtodo22
2 жыл бұрын
Yes.I didn't know in the beginning.After some time I figured that it is not a polarized film.In comments I have told who asked about that.Thank you very much for the comment.Stay tuned for more.Cheers❤️
@yes_man_lol
Жыл бұрын
@@howtodo22 what is it then? if its not polarized film?
@howtodo22
Жыл бұрын
@@yes_man_lol Its a reflective film
Very smart hack. I’m just wondering if we can do away with the silvery film altogether. I can see the numbers just fine after the silvery film was removed in the video..
@howtodo22
10 ай бұрын
Yes. The purpose is to use silver paper to reflect the background light through the display. That's how we can see the digits. Reflective surface removal means light gets low and hard to see the numbers. Still displays fine. But hard to see.
Gotcha, I will try this too...I ll get back once done
@howtodo22
Жыл бұрын
Good luck and be careful ✌️😎
tyyy
Good job bro🔥,
@howtodo22
2 жыл бұрын
Thank you very much.Staty tuned for more.Cheers❤️
@tharshvijay3061
2 жыл бұрын
I repaired my calculator successfully.thank you❤️
@howtodo22
2 жыл бұрын
@@tharshvijay3061 You are welcome ❤️
hello! i found your video very useful. can i ask if it is okay to use aluminum foil to replace the film?
@howtodo22
2 жыл бұрын
Hello.Thank you for your comment.I didnt tried it.But may be it can use.Just try different materials.You will find a better one.Only purpose is making a reflective back.Cheers❤
Bro .... now I can use my cassio fx 82 ms calculator again...❤
@howtodo22
8 ай бұрын
Happy to hear that 😍😍😍😍
Hi! I’ve used the polarize film but as it shows on the LCD, the first 3 numbers was showing/clear but when i try to input another numbers, it fades. I have not yet replaced the battery and i just saw the comment to use reflector rather than the polarize film. Is it because of the battery or the film that i have inserted which shows fading numbers in my sci-cal. Thanks!
@howtodo22
Жыл бұрын
It was a mistake that I have saying the polarize film.Its the reflecter. Before that try replacing the battery. Digit fading can be done because of bad battery.
@lim.angela
Жыл бұрын
@@howtodo22 oh okay. Thank you so much! Will update once I’ve replaced the battery.
super bro
@howtodo22
2 жыл бұрын
Thank you ❤
Tqq so much bro
@howtodo22
2 жыл бұрын
you are welcome ❤️
i just removed the reflective film and placed the metal piece. though the metal piece is itself colored in silver i guess no need to add anything. Its working fine. thank you.....
@howtodo22
7 ай бұрын
Yes it also work. But little bit dark. Cheers for your effort ❤️❤️
Hey do i have the same problem my lcd looks like its leaking from the top the calculator looks like the thumbnail for this video if i replace reflective film will it look good again
@howtodo22
8 ай бұрын
If digits are showing in that area this will work. If it is completely black, then this will not
Does it work for the other model where digits are made by dash lines. I have some missing dash lines on my calculator
@howtodo22
Жыл бұрын
This method only works for the black patch issues. Few digits missing issue cannot be solve by this. You may have some errors with ribbon or paths.
@Emperor-Of-Karma
Жыл бұрын
@@howtodo22 ok ok.thank you
do you have a video tutorial in half number in lcd issue casio fx100ms?thanks
@howtodo22
Жыл бұрын
Sorry not yet
use polarized film ( can get from broken lcd computer screen) instead of Al paper, to get much better results. Anyway thanks for your video .
@howtodo22
4 ай бұрын
Yes. I have replaced with old mobile display. Its better than AL paper.
can you use aluminum foil as an alternative for the silver paper and polarized film?
@howtodo22
5 ай бұрын
Yes. We only need to make a reflective surface.
@janmichaelcatap5994
5 ай бұрын
@@howtodo22 ok thanks
Does this work for all LCD displays like printer, copier, coffee maker too?
@howtodo22
3 жыл бұрын
If it is a display like this, it will work.But make sure the display is not broken.In here all the contents are displaying and only fault is the black patch.Some patchs are completely dark and not displaying any content in that particular area.It cannot fix like this.You have to replace whole display.Hope you can understand.Cheers ❤
How u attached that silver paper to the lcd? Glue or something? Can i use whitepaper instead? ;
@howtodo22
2 жыл бұрын
Add glue.But in here I didn't used any because I wish to replace it again.White paper can be used.But try to find any reflective paper insteed.Cheers❤
Can I repair the broken display
Thanks
@howtodo22
2 жыл бұрын
Welcome ❤
You can also serve kitchen aluminum foil ???
@howtodo22
Жыл бұрын
Yes. Anything reflective. But make sure to use it without dents. Cheers ❤
Hi! I just want to know that my calculator display has some lines missing,due to which i cant differentiate between 3,9 and 6 could you plz tell me how to rectify it.
@howtodo22
2 жыл бұрын
It may be a ribbon issue.Unfortunately ribbon issues are hard to repair ☹.You can check it by press the display area which is connected to the ribbon.Be careful when it doing.Because it may cause to damage the display.Cheers❤
Mekata polarize film kiyanne normal 4n walata ganna ewa puluwanda ?
@howtodo22
3 жыл бұрын
Reflective polarize film.Ehema thamai meke nama thibune.Mirror ekak wge wennai ona.
For my calculator the upper side of the display is missing some lines over there what can i do
@howtodo22
Жыл бұрын
Is it blacked or nothing?
Is it ok if I use different alcohol such as isopropyl or ethyl?
@howtodo22
2 жыл бұрын
Sorry I cant say exactly about that.Is it hard to find surgical sprit on pharmacy ?
@jomariacebuche5996
2 жыл бұрын
@@howtodo22 its ok I did find thru online shop.
@howtodo22
2 жыл бұрын
@@jomariacebuche5996 Great.Good luck with your work ❤
ভাইয়া আপনাদের কাছে ক্যালকেলুটর ঠিক করা যাবে। ডিসপ্লের সমস্যা। হয়তো নতুন লাগাতে হতে পারে।
@howtodo22
9 ай бұрын
please type in english
Bro intead of silver paper can we use silver foil
@howtodo22
3 жыл бұрын
Try it.may be it is more effective than silver paper.cheers❤
Can we use sliver plastic paper
@howtodo22
2 ай бұрын
I cant say exactly about that. If it makes a reflective surface, then it can be used. Try it. Cheers ❤
Silver paper ke jagah pe white paper use kr sakte hain kya ?
@howtodo22
2 жыл бұрын
Yes.But brightness may be low.Make sure to use more reflect material.
@Amitkr0808
2 жыл бұрын
@@howtodo22 thanks
I have a 1977 make Casio fx-19 scientific calculator. Where can I get it repaired? Please guide.
@howtodo22
2 жыл бұрын
English please
@howtodo22
2 жыл бұрын
I can't say exactly about that Mr.Singh.Better to ask electronic repair centers and calculater shops.