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This Instructable will show you how to repair a LCD that has dead rows and\or columns using a minimum of time and tools. The example shown here is a small LCD in a cordless telephone, but the same principle can be used in other devices as well.

Step 1: Tools Needed

This fix can be performed using a minimum of tools. You need only the tools necessary to disassemble the device (in this case only one screwdriver was necessary), a hot-air gun (a powerful hair dryer may work), and a pencil eraser.
<p>Anyone tried to repair Sharp Oxford dictionary PW E550? The ribbon cable is held down by a piece of tape. Before I run out to buy a hot air gun would it work on tape? </p>
<p>I just repaired a calculator that had the connectors held down by tape. I used a hairdryer on high heat and it did not mess up the tape. </p>
<p>Thank you!!! This totally worked. I just repaired my TI-36X Solar Calculator that had 2 semi-burnt out cells. </p><p>I used a hair dryer on the highest setting and the handle of a plastic makeup brush to rub the connectors as I heated them up. It did take about 5 minutes or so to get the right amount of heat and to find the exact contacts that were broken. </p>
<p>This made me squeal when it worked! I fixed an old treadmill computer from a machine I bought second-hand. There was a broken connection on the breadboard so I dunno if that work but we'll see! I didn't have a heat gun, blow dryer or clothes iron to use, but I made it work with the end of my hot glue gun. Thanks, God bless!</p>
<p>Thank you it work nicely </p>
<p>Thank you for a very good and useful instruction!! I could because of you repair a DYMO 1000 Plus. I was just days away from discarding it, but now it got a new life :-) Google and Instructables is powerful.</p>
<p>Very helpful, I fixed my kill a watts P4480, will try fix my 2001 Audi A4 dashboard center LCD display panel. </p>
Hey there, I'm dealing with the Audi a4 LCD issue as well, tho I haven't found any mention online of success with anything other than replacing the whole LCD panel (requiring tricky soldering &amp; pricey screen)... Any success with this method? Or anyone out there have alternative solutions that've worked? (Ref to 2001 Audi a4 b5 inst cluster LCD multi info display =MID)<br>Thank in advance!
I tried few times, never get complete fix, just getting better, but once getting into summer, my work gone, give up
<p>Does your Kill A Watt P4480 still work after fix? <br>This fix makes sense because my Kill A Watt P4460 (different model) display stopped partially working after I left it in the sun for a while. </p>
Yes, work for a while, then the display turn out again, I feel this model has design problem, I own 3, one of it has this issue, I have done this fix few times. No fun
<p>I dont have a hot air gun... Can I use a blow dryer? </p>
<p>&quot;<strong>Yes it Works</strong> ?! Now i have alot of appliances to fix and money to save ;-) .&quot;</p>
<p>Yes it works ! Thanks a lot for these instructions !</p>
<div>I love You ! I had broken my harmony remote one, the screen touch , I was sad. With your method , it works perfectly !!! thanks thanks thanks !!!</div>
<p>Thanks! I didn't have a hot air gun, or hair dryer, but I managed to make it work with a clothes iron.</p>
<p>I found similar methods over the net, but I especially love the tip on using something harder to press on the ribbon. It worked! Thanks!</p>
<p>Don't know what to do because I can get the screen to work for a few seconds but then it just goes away.</p>
<p>Great tutorial. </p><p><br>I tried as described but no success, however when I either stretch the ribbon OR bend the end of the ribbon attached to the glass (almost 180 degrees), then the display <strong>DOES WORK</strong> perfectly. When I try to reassemble the clock, the display fails again.</p><p>Can I do the same process on the glass end of the ribbon? (I guess I should not open the glass display to check the ribbon contacts... )</p><p>Thanks for any other help. </p>
<p>I have a LCD screen off a vdo dayton ms 4200 gps car radio that goes darker as the unit warms up,the unit works fine otherwise,does anyone have any idea how to fix this</p>
<p>Thank you man.</p><p>i was searching for something like this to repair my calculator.</p>
<p>Just repaired my Honeywell CMS921 thermostat display, fully working save &pound;75+ Thanks!</p>
<p>No ribbon strip on my CMS921 just 8 pins that plug into the PCB. Please advise!! :-)</p>
<p>There may be a thin conductive rubber strip between the glass of the display &amp; the board it is attached to. Over time this rubber can leak an insulating compound onto the interface connection that can, at times, be removed by removing the strip and gently rubbing it with a clean soft eraser. Be gentle as it can be fragile &amp; easily damaged. This was an effective repair in the early days of these displays.</p>
<p>I just got my CM921 to work - so, carefully unplug or remove the lcd unit from the circuit board (8 pins i think) then separate the white board (same size as the lcd) from the back of the lcd display (it was glued on one side and i used a scalpel) the lcd will then flip over and you can see the ribbon, then follow the instructions above, return the lcd back down on top of the little white board as before and plug it back in...</p>
Thanks for this! I repaired my little HP 6S with a hair dryer and the pencil eraser. Took two times and I really cooked it, but after it cooled down all the segments of the number screen worked.
<p>This is great! It took me a while to fix the display on my sharp calculator, heating with a hair dryer and pressing with a pencil eraser. In the end I tried pushing harder, and it worked. BTW, if your display goes NEGATIVE, you have to flip the polarized plastic display over.</p>
<p>Can this fix be applied to an android phone?</p>
<p>I repaired my dymo pocket. Now works like a charm. Thanks.</p>
<p>Just fixed my Faberware Kitchen Timer ... becareful when using a heat gun, I accidentally melted my cable ribbon just a little, lol.</p>
<p>Worked for me! I used my company's industrial heat gun, so I had to sweep it left and right stopping and starting about seven times - in order to prevent one area from overheating. Between starts and stops, I used a pen cap to press down on the ribbon cable, where it connected to the circuit board.</p>
<p>I made it.I fixed my Nissan Quest LCD display for fuel and tempreture .Thanks for your vedio.</p>
Hey buddy I need to fix my Quest's lcd. Did you use a heat gun or hair dryer?
<p>Thank you very much. It took me about 30 minutes due to a more complex at&amp;t ML17929. I'm still mising 2 top lines, but it was much better than the BLANK display I had previously. Maybe with some more heating and rubbing, it would be 100%. I used a hair dryer on the low heat setting.</p>
<p>I fixed my daughters little bookmark dictionary that wasn't displaying anything. Worked like a charm. Thank you so so much!</p>
<p>I have an atomic clock / indoor thermometer with a large display. There are pads on the little circuit board, but no ribbon cable. Can anyone explain to me how these work? Any repair tips? I really do not understand how the information gets from the pads to the panel.</p>
I WOULD LOVE if it works... I have a Sharp multifunction graphical calculator that has THE VERY SAME display ribbon connector and LCD.... I REALLY, REALLY, REALLY, REALLY, REALLY, REALLY, REALLY, REALLY, REALLY, REALLY, REALLY, hope this will work also for me!! I was in eager to find a suitable solution on the net and maybe you did my day! This evening I'll RUSH home and try it! Thanks friend! ciao Mario
calculators arent that expensive , lol
Mine is, and mine is cheaper than some others that I've seen and want. TI 84+SE w00t, my calc rocks!
Beats mine. I got a TI-83+. I want an nSpire.
Don't those have less archive than the 84+SE? The graphics look nice, but I'm used to my 84+SE.
I'm not sure about the complete specs, but the thing that gets me going on them is the ultra high res display.
What is the display? I know the 83+/84+ is 94x62 one bit gray scale, but I don't know the nSpire.
320x240 4-bit grayscale. Pretty impressive for a calculator. It even offers antialiasing. Though they do make full color graphing calculators, but those are a bit out of my price range.
Ti-89 rules them all =:)<br/>
Why not just get a cheap old laptop and install <a rel="nofollow" href="http://www.graphcalc.com/,">http://www.graphcalc.com/,</a> then your graphing calculator will have a full querty keyboard, 1024x768x32 res, and wireless intartubes.<br/>
most tests say no calculators with full qwerty, so you would have to use Divoraks or something
<p>&lt;smile&gt;</p>
How exactly does the 89 rule the nSpire?

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