LCD repair
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- Опубликовано: 6 июл 2024
- In this video I show how to fix a fading pixel problem for LCD screens. Because usually the problem is with the LCD connections not the LCD itself, I look at the two most common types of LCD connections, that are used in the industry. After that I show how to repair these types of LCD connections to fix the problem.
Contents:
00:00 - Introduction to fading pixel problem.
01:21 - How zebra connections work.
03:14 - How FPC (Flexible Printed Circuit) connections work.
04:50 - How to fix LCD screen, that has zebra connections.
07:00 - How to repair LCD screen, that has FPC (Flexible Printed Circuit) connections.
The suggestion was excellent to solve the issue of LCD in my Casio calculator. The problem was in the connection strip. By heating with hairdrier and pressing in the contacts area, the LCD now working like new. Thanks
I thought I had destroyed my thermostat so I searched for instructions like this. Yours are by far the best explanation that I found. Thank you for taking the time to make this.
Hi, well I've had a good day today, I fixed the LCD pixel problem that I had on my SONY mini hifi system using this video as a guide.
I didn't do it exactly as the link but it was certainly a good guide. What I did in the absence of a soldering iron was use the side of a kitchen fork prong that I had heated up on the gas ring for 10 seconds. Then I positioned the heated prong exactly where I wanted it, pushed down on the furthest fork prong away to give a good amount of pressure and held for 75 seconds which allowed the heated prong to cool down. So, I was doing 3/4" about every 2-3 minutes. I did have to put the unit back together to see how I got on & take it all apart again several times but eventually I got there. Thanks again for pointing me in the right direction ShortcutElectronics.
LCD repair using a fork! you should have make a video of it!
This is easily one of the best how-to videos I've ever seen. Thank you!
Thanks for this very instructive and thoughtfully-made electronics repair. Explanations with visual examples were very helpful in understanding the underlying concepts. I appreciate the care with which you demonstrated the repair, as well as additional applications. You earned my subscription! Please CONTINUE TO TEACH US VALUABLE LESSONS!
I totally agree with your comment. This was the best explanation i could find on the internet and I have subscribed also.
No one repairs my car's (1997 Mercedes E420) non-displaying pixels but I noticed that simply putting pressure on the ribbon cable at point of attachment worked to a very limited extent. I suspected already that heat or pressure would work and now that I see it in this video, it makes perfect sense! Definitely worth a try, though I might have to come up with a method to know the temperature of the soldering tip. THANK YOU for this video. :-)
I have many many many years trying to fix my VW LCD clock which is dead since I get the car, like 17 years ago. I really appreciate your detailed explanation how to fix it...
Thank you for sharing this troubleshooting method on the repair of an LCD board. I'm about to try it on my fading pixel problem.
Did it work for you?
I cleaned the zebra connector of a kitchen timer but no luck. The problem was the other side of the connector which was stuck to the lcd. I pulled it off and cleaned it. It was tricky to put it back as there were no guides to locate it correctly but I got there in the end. Now it works like new. Thank you.
It now works great! Thank you ShortcutElectronics for this easy to understand LCD screen repair! I'm a big fan.
You are a hero: I just fixed the LCD.l display of a Gazelle E-Bike: the display uses a flex cable which was indeed loose at the display end. Heating this side of the cable with a soldering iron at 195°C worked perfectly I have a electronicly adjustable temperature on my soldering iron)
exactly the information I was looking for right now, thanks a lot!!!!
This gentleman gives a very clear explaination and excellent, understandable fix that even a non-tech person like me! Thank you!!
Great video sir wish I had watched this in the 90’s so many electronics I could’ve fixed
Well done. You explained this very well. Now I can fix my vintage calculator.
Very concise video. Thanks! I'm going to try this on a very old General Electric alarm clock that's been missing a few segments for years.
Please give us the feedback if it worked out for you......
Excellent. 20 minutes to clean contacts and add three layers of tape top and bottom and works like new. Thanks.
Fantastic, thanks a lot for demonstrating the technique
Thank you for this video! I was able to fix my Chronos Chess Clock's left panel display with your exact trick, with some tin foil and a TS100 soldering iron @ 200C, and it's perfect!!!!
Dünyanın en yararlı ve bilgilendirici videosu. Teşekkürler. Sade ve akıcı anlatımınız için de minnettarız.
Excellent video. Very helpful! Thank you.
Thank you very much for the information, I have tried and it works perfectly
Thanks for sharing these thoughts and solutions with us... It actually helped me a lot.
Regards
Yes, thank you. I agree with this comment !
Thanks for the great video! Also thanks for not playing obnoxious music like some do!
Thanks for this, my BMW screen is full of lines, a new lcd is 68 quid, def going to give it all a clean and reseat, worth a try, cheers for info
I had a hacked ghost box with no numbers showing besides the very first one.. I'm gonna give your idea a try.. :-) thanks either way, I for one appreciate that you showed this so clearly!
Thx for nice comment :)
Fantastic Well done. You explained this very well. Now I can try to fix my mini cooper 2002 missing digit. Great shortcuts and knowhow carry on you've earn my subscription too as I like to fix my own.
Thank you for this informative video. This is very helpful to those with problems in the LCD display that could be fixed using the method you discussed here.
Thank you for sharing. Was wondering what if you apply some flux to the pins before soldering. Maybe it can improve the chance of better soldering connections
Good explanation, thanks for sharing
Nicely explained. Could you please help me with my Samsung AC Remote LCD and Zebra connector ? How can I stick zebra connector with LCD ?
Good information. Thanks.
très bon travail, j'ai appris plein de chose. merci
Whilst I could not completely cure my current problem with an FPC, I am fully prepared for the next one! Thank you.
Very good! Congratulations!
Thank you this was really helpful
brilliant video. Thank you.
Very clear explanation
Brilliant work! Your english is not perfect, but no problem! Since you speak clearly, i can understand every word!
With your help, i will soon try to repair my motorcycles screen. It looks quite the same than the car at beginning. Only a bit worse.
Great explaination, thank you! It helped me realy!
thank you for this video, it is very good.
thx to your experience and a few other youtube videos covering "Zebra" rubbery conductive contact strips (i had no idea such existed) that are used to connect circuit board contacts to LCD contacts and how to clean them - i was successfully able to restore my LCD display functioning on a very expensive race car digital dash display - cost $0 - just 10 minutes of my time and some research and patience
Fantastic!!!! Thank you very much!!!!
👏👏👏👏👏👏👏👏👏 great video, fantastic explanation 👍👍👍
Good suggestion! I will try! Thank you so much
Thanks for sharing... this video saved the display on my schwinn airdyne,,
Thanks, this helped a lot.
I appreciate n learn from you , thankyou sir
Brother you are KING!
Thank you
Thank you you reassured me that there are no other ways of them to fix those zebra connections or whatever connects to them
I believe this will work on my screen. Thank you very much.
Thank you for good instructional giude.
can you also show how to fix a faded lcd screen? because there are some lose segments in my lcd screen I can only see half of it because the other half is dead
Thank You, I'm never seen this method or repair the lcd. I hope is will work in my case;...-)
Awesome... Great repair ... The second One.
thank you for this video... europeans has the most underrated videos ever.i subbed!
besides pewdiepie
@@AbDaniel21 who is pewpipi?
Very useful
Great video
Thank you for posting, it is Exactly what I was looking for. A multimeter display appears to have the zebra connector loosely stuck to the LCD making it easier to reinstall. Is there a way to stick the zebra connector back to the LCD once you have cleaned it?
Thank you
좋은 기술 영상 감사합니다.
100%Worked!The aluminum foil was a brilliant idea!Thank you very much!!!!!
great video, I suscribed. The last trick with the calculator rarely worked for me. I wonder what could be done to fix this calculator without the FPC.
Very cool video
Thank you!
i really enjoyed this video i am not a repairer i was searching on youTube hoping to find a solution to a large quantity of PDA for scanning barcode that has bad screens. i am tempted to givea go now
Great video! You should have fixed also the temperature display while you had the dashboard open
The best so far
sir I have fluke 75 meter .I have no zebra strip metch .I want to connect LCD to board direct wire plz help
Thanks so much!
Thanks for the video. I have one question tho. Im trying to fix my ATV cluster witch is a LCD with zebra strip.
The lcd screen had a film thay was brownish which i assume was the polarizing film but the glass had one in the front and on the back and i took both of them off with a knife and alchohol.
Behind the glass is another splastic piece whick i assume is kind of like a back light but i had a white film on it which has bubbled.
If i put new polarizing film on the lcd screen could it work again? I was thinking since it had two i guess i need to put them at different angles from each other to let light trough?
Also the white film on the plastic piece, does it have a name? Can i take it off?
Sorry for late reply. About polarizers you are right. They need to be in a specific angle in order to work. It should be 90°. You can take 2 polarizers and just rotate them one in front and one in the back of the LCD and you should see how the LCD image changes. Of course the LCD should be ON while doing that.
@@shortcutelectronics sir please help me to fix this issue. ruclips.net/video/NAOZI2pYFHs/видео.html
Thank you for your efforts very informative video, I have question about my car stereo LCD display, it works perfectly fine when start the car but after few minutes it starts fading and goes blank
If your LCD display works fine when you start the car, I am pretty sure your problem is not related to the LCD itself, but the hardware of your stereo system. If it starts to fade, instead of just going blank in one moment, my guess is that something is wrong with the power supply. If the audio system works also when the screen goes blank, the problem should be in the part of the circuit that provides voltage/power to the display driver. If you could find and check the voltage that provides power to the LCD driver this might answer the question. One thing that you could do with limited knowledge in electronics is to look for swollen electrolytic capacitors and replace them since they do not hold the voltage when they go bad, but make sure that the polarity of the capacitor leads are correct when doing that. Second thing is to simply search " fading display problem" in google since there is a chance that this is a common problem for particular system and someone has already solved it. There's not much more I can help in this case.
EXCELLENT
Hi, what is the high of the connector you are using to fix the navman 3100?
Thanks a lot! That was helpfull how to repair fpc! It work it, additional in add kapton tape
Really interesting video, it helps me to fix an old broken lcd display. I just would to ask (as I'm a beginner): is that an aluminium foil like the one used for food? Could I do that also with a soldering iron without a temperature control? Thank you so much.
Yeah, I used a regular aluminum foil. Nothing special there. You can try without temperature control, but in that case there is a lot more risk to damage the LCD connector if the temperature is too high. It could start to melt the connector.
@@shortcutelectronics Thank you. I will think about it, before doing the wrong thing. Or maybe I can have a try using the soldering tool a little far, but I think, as you wrote, I should push it on the alu foil.
And actually my cable is already welded to the board... just the display has a lot of lines/dead pixels. Anyway I will try it! Thanks for your reply.
great work sir !
My cluster panel lcd screen of suzuki grand vitara 2011 is fading.. can it be fixed again?
I'm curious how the rubber strip comes into play to push display on LCD? Is there light shining through the rubber strip? Does the rubber strip have to be perfectly aligned with slots/holes on the strip and PCB? etc
My car stereo has no display showing up, I'm going to try this!!
Gracias,muy bueno
Prego ;)
@@shortcutelectronics sir please help me to fix this issue. ruclips.net/video/NAOZI2pYFHs/видео.html
i have a philips dolby and think it has a lcd and after a few hours work it looks like it dims and also the light seems to fading. can i do anything about this? its a htb-3520g
Interesting - thank you - particularly your experiments with reattaching flex cables using heat.
I have a Powerbook 100 with Sharp LCD where a few lines of the LCD are sometimes dead. I solved it by including a cushion to press the flex cable against the LCD - which works most of the time as long as I don’t close and open the display!
These are a chip-on-flex design where the driver chip is attached in the middle of the flex. I can’t tell if the poor connections are between the driver chip and the flex cable, or between the flex cable and the LCD. Perhaps the heat method will also work for reattaching the driver chip to the flex cable. I was thinking of using a 3D-printing hotend heat block (with heater cartridge) because of its block shape. But a soldering iron looks like it works just as well - I just think you need to apply the tip onto some sort of block or strip, to spread the heat while applying an even pressure (a round soldering iron tip doesn’t seem ideal).
If anyone reading this has indeed re-attached a driver chip to a flex cable in a computer’s LCD, let me know :)
Cheers
I thought it was just a taped connector strip. I will try the heat process as a few of my calculators have lost the digits.
hi friend, ı purchased the ribbon cable from aliexpres help me please, this product is have paper backing, need to remove the paper ? or not directly soldering with paper. thanks for answer
If you can send a video tht my personal weighing machine's lcd becomes black but showing figure/number.
You need to buy new and throw the old.
Thank you . even if it didn't fix, i know what to search for now
Nice one
Parfait, merci👌🇫🇷
I have a handheld LCD chess game from the developers of Excalibur, and the display doesn't show all the pieces in it. The connection is damaged 'similar' to what you've shown here, but do you think you do a video about it.
Not at the moment, sorry. I have other things that I have to focus on right now.
I have a casio g-shock that flashes some segments, not all the time, sometimes it works well, I think that water entered it and that was the problem, do you think that technique could work to repair it? PS What a good video, I thought that LCDs of that type no longer had repair.
If it has zebra connectors, this might work, because water might get between the zebra connector and connections of the Printed Circuit Board or the display connections. If it has the other type of connector in that case there still could be some water left that shortens some parts of the circuit and that messes up the signal. I think at first I would simply open the case and let it dry for some time. Maybe try to heat it up, but not too much. If that does not help, than go for some more drastic approach. P.S. I'm happy that you liked the video :)
@@shortcutelectronics sir please help me to fix this issue. ruclips.net/video/NAOZI2pYFHs/видео.html
O is the tape of the lcd screen
Tnk you
not only does my Seimens A50 screen have no display at all but the screen seems to be "burned" if that makes any sense? If i put pressure on the screen then i get this array of green/red/purple colouring that looks like a bruise on the skin. Is the screen reparable or past all hope?.The phone itself works fine but of course i can neither compose texts or read the ones i recieve!!.
Hello! Thank you for this very instructive video!
I have a problem with my radioCD LCD screen.
Is there any email so that i can send you some pictures and tell me is it's possible for me to repair it?
Hi,
Could you please help in fixing horizontal lines on backlit lcd LMG7380QHFC
what is the silver layer on base of the lcd? my car lcd looks faded because of the base. i cant find it anywhere, the top layer (polarizer) i can change.
Silver back sheet layer. It maybe reflective sheet
You are great, thank you! Where you are from?
how 1 can buy this liquid for cleaning lcd and zebra connector?
Can I still fix a fpc is it's teared or shorter than before?
where do you find this tape? i ripped the LCD on my HP LCD.