lcd panel destroys t-con brands

If it was the lcd display, the lines would still be present regardless of the tcon i suppose. if it is a voltage issue blowing the tcon, the display is just a feedback loop through tcon to main board as opposed to the main board being the output to the tcon. is my thinking in the ball park on this?

So this image is from the new board ordered, after power cycling a few times while getting readings. it would turn on and then shut itself down. like the original board, now the tv stays powered on with the lines. once i disconnect the tcon, the lines disappear and the tv stays powered on with backlight. Off of what you had posted in your reply @oldturkey03 , it appears that the driver boards are connected to the powerboard and the lcd panel. the tcon board is connected to the lcd panel and the main board. if the driver boards and tcon are connected on this unit, it is internal and through the lcd it appears. it looks weird haha. but to trouble shoot the driver boards, i have disconnected each side of the lcd boards one at a time and the the tv will go through post and shut down.

1.94V for the B+ is way too low, panel will use either 5V or 12V to run the T-CON board. Are you sure you are getting 1.94V feeding it?. You need to trace out the wires that are connected to the fuse and then trace them back to the main board, then disconnect the cable and then read the voltage on the main board side to see what voltage you are getting without having the T-CON board connected, we are trying to find out if the voltage source on the main board is bad or the T-CON is loading down the main board.

The T-con board is trivial to replace, it"s held in by a few screws, two big FPC cables to the panel and two LVDS cables to the interface board. I have checked voltages and didn"t find anything unreasonable however without any service literature I can only speculate. I did find a datasheet for the panel but I don"t have any reasonable way of capturing the signals from the LVDS interface to analyze them in any meaningful way. Since the T-con board is considered part of the panel assembly the datasheet doesn"t even describe precisely what it does.

I may have to just replace the T-con board and see if that fixes it, I hate to buy parts and then find out the problem is something else. Most sellers won"t take returns on something like that for obvious reasons, too many unscrupulous people who will try to return the defective one or damage the new one and then send it back as defective. My whole group was laid off recently so I"ve postponed any non-essential expenses for the time being.

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I’ve owned a Toshiba M55-S3294 since October, 2005. I’ve seen your first example on my own laptop only once and it went away when I rebooted the machine and has never appeared again but it’s nice to know replacing the LCD isn’t to hard after reading around your site.

I do have another question about the same laptop. Can the lid over (mine is copper) be removed without taking the LCD out? I’ve read you can change the color, so before I go looking for one on eBay, I wanted to know what I was getting myself into.

Most likely it’s the LCD screen problem. Just in case try to connect an external monitor and check out the video output. If you see the same vertical strip (very unlikely), then it’s onboard video problem – the motherboard problem. If the external video is fine, then I would suspect the LCD screen itself. Try to twist the screen, apply some tension to it. Does the vertical strip changes location, color or width?

Have you tried to connect an external monitor to the laptop? What about external video, is it bad too? If both screens – internal LCD and external monitor display the same distorted video, then I would suspect the system board. Let me know how it goes with the external video output.

hi, there i have slight problem with my lcd unfortunately the top 8 cm of my screen are gray and do not work, i assume it is completely broken a therefore wish to replace it however my warranty has run out. so i plan on doing it myself, i have two questions relating to this and would really appreciate if you could help me answer them. First of all the laptop in question is a fujitsu-siemens Amilo m7400 and i was wondering if i could replace my lcd with my friends Amilo m7405, in terms of resolution and size they seem identical, however i would appreciate if you could tell me whether or not i am barking up the right tree, my thoughts were that since they were the same model basically that fujitsu would probably have used the same lcd. secondly could you possibly tell me were i could get hold of some sort of manual or instructions. thanks.

It has gotten progressively worse over time. If you apply some pressure to the screen frame, the display will return to normal and the small vertical line will go away. I would assume that this is a loose connection? I intend to remove the frame and re-seat the inverter, LCD cable and do some cleaning. Does this seem like a failing LCD screen? The computer is slightly over a year old.

I would try removing the LCD and putting it back and hope for a miracle. Last month it helped me to “fix” a bad LCD on IBM ThinkPad. The screen was bad, it had some horizontal lines on it. Reseating cables and replacing the video cable didn’t help. But, after I removed the screen and put it back I got a perfect video. I think that when I put all screws on sides back in place, they stretched the screen somehow and made it work fine. I’ve never seen the customer again. I don’t know if it’s going to help you, but I think it worth trying.

I forgot to mention that the screen goes dim every couple of minutes as well. If you give the back of the screen a light tap, it will return to normal. Can you give me any ideas of where to look for a replacement LCD if that is the problem?

With backlight it could be a loose connection problem, try reseating cables on the inverter board. To find a replacement screen, you’ll have to search by the part number. You can find the part number on the back of the LCD screen and it looks like: A000002050 (you might have different part number). Try searching through Google or on eBay. LCD screens are very expensive and very often it doesn’t make any sense to replace the screen, it’s better to buy a new laptop.

If you cannot find the part number for the LCD, give me more info about your laptop: model number and part number from the bottom and I’ll look up a part number for you.

just an update, but disassembling the LCD and re-seating the connections as well as the inverter seems to have fixed the problem. Thanks for your advice.

Start laptop troubleshooting with connecting an external monitor. That’s the first thing to do when you have a bad image on the LCD screen. If the same blue and purple vertical lines occur on the external monitor, then it’s the motherboard (video card) problem. If the external video is fine, then I would say that you might have a bad LCD screen.

Hi I have a Satellite p35-s605,which has developed a red horizontal line on the display,when connected to an ext monitor there is no line,guess Lcd problem also have reinstaled the os and drivers,

I have a gateway m500 that fell off a desk and crack the LCD. I couldnt use the external monitor so we sent it in for warranty to use the external display. I bought another lcd, put it in, replaced the cables,and now I get color with vertical lines but no picture. Now that I have replaced all of this, my external monitor no longer works. Do you have any ideas on what needs to be replaced next? please let me know. Thank you

Have you tested if the laptop works fine with an external screen before you replaced the internal LCD? Disconnect the internal video cable from the motherboard and test it again with an external screen. If you still get the same lines on the external video, even when internal LCD is disconnected, then I would say that’s a bad motherboard (video card if it’s a separate module).

It’s hard to guess. First of all, I would check if the video cable on the back of the LCD screen makes a good connection with the screen. I’m not sure if it’s going to help you, but I know that on some Toshiba laptop the same white screen appears when the video cable is not seated properly.

Thanks for your response. I took the laptop apart and checked every wire in the cable going to the display and could not find any problems with the cable. Even found there is a fuse on the circuit board but that was OK. I put the unit back together and now it’s working! I think you were right, probably just a loose cable as the connection to the LCD itself does not feel that secure.

I have a dell 9400 with a wuxga true life display. Recently the video card was changed and then the lcd had a blueish tint and no blacks whatsoever. When plugged into a crt all the colors are fine and the video card works good as well. Dell is sending someone out to replace the motherboard and video card, i was wondering if you have ever run into this problem and the cause…Before the lcd was replaced it was wavy and the windows logo during start up was shadowing.. along with distortions to the color. The wavy ness is pretty much gone but no blacks color distortion and a blue tint remaiins… any ideas? why would they change the motherboard?

I haven’t seen a laptop screen with bluish tint yet, but I’ve seen a reddish tint many times. In most cases, if the reddish tint appears on both screens – internal LCD and external monitor, it’s the system board/video card problem. If the reddish screen appears only on the internal LCD screen but not on the external monitor, then I would suspect the screen itself first. I guess the same would apply to a bluish tint.

Thank you for providing all of the laptop lcd tips. I have 2 laptops with pretty much the same issue with a very dim screen or no backlight. Both laptops are fine on external monitor.

I have reseated cable hardness from lcd to mothe board so many time. My question is…is it the inverter i have ordered and replaced is bad. I think the invert board is to convert small dc voltage into high RMS voltage to ignite the backligh and control

I recently purchased a toshiba satellite p35-s609 from ebay, my problem is similar to bernie’s in which when booting up there will be a couple red lines on the left side of the screen, while installing windows xp I noticed that there is a reddish hue and diminished color (the white sunburst gradient cirles on the background of the windows turn into reddish circles), this problem is not duplicated on an external monitor. I found that if I tilt the laptop a little will reset the color and brightness to its normal display and stay like that as long as it is kept in that position (which is a little awkward at times). Could this hopefully just be a loose connection from the LCD to the motherboard? I have yet to open it up and wondering what my current options are.

BTW, look inside the video connector on the motherboard and video connector on the back of the LCD screen. Check if there are any bent pins. Last week I had to repair Toshiba Satellite P30 with a backlight problem. After 15 minutes of testing I discovered that couple pins inside the connector on the motherboard were bent and the video cable didn’t seat properly. The problem was fixed after I carefully straightened the pins.

In the top navigation bar there is a tab “Laptop Parts”. In there I listed 2-3 companies who sell LCD screens for Toshiba. We worked with Spare Parts Warehouse and AG Parts (used to be ID parts) and don’t have any complaints. Man, screens are expensive.

What does work though is if I leave the lcd screen connected but remove it from the case (so it’s not touching the laptop) the lines go away. Is this a grounding issue. It seems like I am close to fixing it but can’t figure it out…

Hi! I just got a new laptop: the HP Pavilion DV8333EA and I’m already facing problems! It’s not a major issue but there seems to be a strong pink tint between text on my lcd screen; particularly between vertical characters such as ‘t’, ‘l’ and ‘i’. It’s quite distracting and I didn’t expect such from a brand new laptop. How can I resolve this?

Is your laptop still under warranty? It could be a major issue with the LCD screen or with the video card. A new computer shouldn’t have any pink tint between characters.

Connect an external monitor and turn on the laptop. If you can see the same pink tint on the external monitor, then it could be related to the motherboard (video card). If the external monitor displays characters fine and the problem appears only on the internal LCD screen, then it could be the screen problem.

Test the laptop with an external monitor attached. If the external video as bad as the internal, then it could be the motherboard (or video card) failure. If the external video is fine, and you have a problem only with the internal LCD, then I would check if the video cable got loose. Probably you’ll have to reseat both connections – one on the motherboard and one on the back of the LCD screen. If reseating the cable will not help, probably it’s a hardware issue.

How about this one. Toshiba A105-S2716 Laptop and everything is working fine. Then the screen goes grey with a few white lines running horizontal across it. The external monitor is working fine, and if I cycle through the Fn-F5 key, the LCD starts working again for awhile. Also, if I reboot it starts to work again for awhile. The time it takes to go to the grey screen is intermittent though. It could be 2 minutes or 20. I’m not sure which component may be bad. Thanks for a great site.

When I got a Satellite A105 laptop with this problem for the first time it took me just 10 minutes to troubleshoot it. I connected an external monitor and set the video output on both screens. After 10-15 minutes the internal LCD screen failed but the external video was fine. I just ordered a new screen and video cable (as a precaution) because it looked like 100% LCD issue. BUT replacing the screen with video cable DIDN’T fix the problem. The same gray screen appeared after about 10 minutes. Reflashing the BIOS didn’t help either. After that I ordered a new system board and the problem was fixed.

I don’t want you to encourage buying a new system board right away, because in your case it could be just a bad screen. That’s would be nice if you can find a spare LCD screen and test it for a while. But from my experience this kind of failure on Satellite A105 laptops is caused by faulty system board. As I said before, that’s a wired one.

Hi, i have a prob similar to the 1st one that has been discussed. There r lot of horizontal lines that appear on the lcd and the whole display looks inverted and out of focus. Is the problem very common with M55s?

I afraid that it could be either the video card failure or the LCD failure. I cannot narrow it down without test LCD. I don’t think that the video cable can cause such problem.

My notebook’s screen has blue background colour even then it should be black, for example at startup or in DOS command prompt window, so the colours of the screen are distorted. I can send photo to email. External monitor working absolutely OK, even then I replaced the LCD panel the problem persisted. What do you recommend to check?

So you’ve replaced the LCD screen and still have the same problem? Man, that’s was an expensive one, but at least you know that’s not the screen problem.

If you experience a problem with the video output on the laptop LCD screen but not on the external monitor, then in most cases it would indicate a display related issue. If onboard video card is bad, the same video problem usually appears on both screens, internal and external. It’s not a rule, but from my experience it’s correct most of the time. I think that you have a problem with the LCD screen but after you mentioned this:

Hey thanks for your reply. It’s got me stumped. I changed the inverter and cable and no difference. The diagnostics clearly say that LCD, inverter, cable are all fine. Problem with adaptor…go figure. The most annoying thing is that it was only 1 year and 9 months old when it had this problem. The laptop is absolutely mint condition, I have used it as a ‘desktop’, not even taken it out more than 5 ocassions! If I need a laptop I’m gonna use my girlfriend’s Intel Macbook. Gonna build my own desktop, that way I can fix it easily.

I have an old 5105-S901 which, within a few minutes of running, shows an increasing amount of random pixel trash on the screen – similar to some of your screenshots (both on LCD and external monitor; shows as corrupted ASCII characters during boot-up). In 640×480 (safe mode) it works relatively stable for a while, but it crashes with ‘unknown hardware failure’ within minutes if it’s running in higher resolutions. After spending countless hours of testing, cleaning, replacing memory and experimenting, I found out that it’s a temperature issue with the video card. The Nvidia chip is getting extremely hot (burnt my finger twice) and if I spray liquid ice on it, the pixel trash immediately goes away. The video card has no active cooling, so I guess it became defective from permanent overheating over the years. I’m not quite sure what to do now – I can’t leave the laptop open all the time and spray stuff on it every 5 minutes. A new video card is ridiculously expensive ($350 – Walmart has a complete laptop for that price) and I wonder if and for how long it would solve the problem. I already force the CPU fan to run permantently at 100%, but that doesn’t help the video card. Is there a way to improve the video card’s cooling in my laptop model ? Have others experienced similar problems?

i have an acer aspire 3002 nlc laptop, there are vertical lines apperaing on my lcd monitor, the external monitor shows no display when i try to connect to it.. plz let me know where lies the problem.. and is there any precautionary measures should be taken to avoid it.

i have the problem in ex 2. but i dont get a display on my external monitor either.. i opened the laptop then disconnected the lcd connection and then tried to connect to the external monitor.. it worked fine.. but with the lcd connected the external disaply is simply not there.. and the lines are also no solid they are in dots moving from top to bottom.. and few of them vice vera…

I have a P35-S629 that, yesterday, developed a different video problem than those written about. Beginning from the Toshiba start screen, the right half of the LCD has horizontal lines and poor quality, similar to Safe Mode. Lots of flickering too. The left side is perfect. I don’t think the laptop was dropped or damaged.

It depends. Some LCD screens are not very expensive and it makes sense replacing just the screen. Some LCD screens are very expensive and it’s better to buy a new laptop. Make a research on the Internet and find out how much you have to pay for a new screen. Add $100-120 if you going to replace the screen in a laptop repair shop and you’ll see if you want to go this route.

Well i tried to connect to the external monitor, but there was no display. Then i removed the lcd video connector, to my surprise the external monitor showed perfiect display. but when i connect the lcd monitor and use fn keys to swap display on the external monitor there’s nothin but a blank screen. Is there a system board issue?

In the comment 79 you mentioned that the laptop LCD has lines of dots moving from top to bottom. If the external screen would have the same lines, then it would say it’s the motherboard/video card failure. But you say that when you unplug the video cable from the motherboard the external screen shows perfect video. So I’m not really sure what’s going on.

May be you have a faulty video cable and there are shorted wires inside the cable? When it’s plugged into the system board it shorts something making the laptop LCD to display these lines of dots and also the VGA port not to work properly. But when the video cable is unplugged the problem is gone and the external screen works just fine. That’s my guess.

well anyway, im having a problem with my monitor on a compaq presario v2414NR, and the lower half is all white while the top half is fine, it works with an extrenal moitor, ive reseated the connectors, but im getting the feeling tht it may just be the video connector to the lcd

Hi! very frustrated, my Toshiba M200 never had a problem until one day the LCD only showed color lines (it was sitting in my desk, no moving or hitting that I recal) , on external works perfect, bought a computer for parts on e-bay, and tried everything first the LCD, then LCD plus inverter, and dedicated ram for graphics card, do you have any knowledge that this could be a system board problem, right now it seems the only answer, I really dont know where else to look, I would really appreciate some light at the end of the tunnel. Best Regards

I have the same problem and I’ve just find where the problem comes from. Between motherboard and LCD screen, there is a cables linking them. When I touch these attached cables, screen remains correct but some colors may disapear. One or more of these cables may be cutted, and it seems to be the reason of the problem. I change it and I will tell you if my problem disapears.

If the laptop LCD screen and external monitor display the same bad video (horizontal lines), most likely you have a bad motherboard, I assume the video card is integrated into the motherboard.

I have Compaq evo n800w UXGA laptop. When I start it, display becomes first greenish and after that picture is harsh and blurred but colors are OK. I had to drop down resolution to xga level that I can read any text seen on display. I have changed drivers with no help. On external display picture is OK. I have unplugged Lcd cable and put it back with help of manual but no help. Is it possible that some cord of ldc cable is broken or other edn of it is loose? Is it possible to change that cable on that particularly model? Is there any instructions available? No warranty anymore. HP offers only replacing whole display and the price is over 1000€ !!. Can anyone help with this problem? Yours Mika

thanks for the reply. well i removed the strip today. took the white 30 pin connector coming from the lcd into the motherboard, out. checked the pins inside the white female connector onboard, which was OK. the 30 wire cable is well in placed in its male connector.placed the connector securely back into its female.when i press the white connector on board the display chnages. seems like there is always a blue overlay on this screen formed by very thin vertical lines, which has taken away the crispness of the image on the lcd.the connector is very sensitive, even if i press is lightly the display changes.the cable is ok from the end where it goes into the lcd. Does this description ticks any thing??? i cannot solder it again on the board as it is very tiny connector with 30 pins. what ticks me is a bad connection b/t the motherboard and the female conector on the board. is there anyway that i can convert the 30 wire cable from the lcd into the external monitor port, so instead of video signal from the on board connector i can use video signal from the video port at the back. i was good at electronics in the university:)

My dad basically just ran a magnet (from a portable FM device) in front of his LCD on his laptop (accident). Now the screen is in bars of blue, green and some white, predominately on the left side of the screen and across the top. He says it appears “smeared.”

Is this something there is a way to reverse? He says he is pretty sure it is magnetic damage to the LCD; the computer itself appears to be working fine. He can’t search the ‘net himself as he can’t navigate with the damage to the screen and asked me to see what I could come up with. So far, this seems to be the best place to look for answers!

is there any way that i can convert the 30 wire cable from the lcd into the external monitor port, so instead of video signal from the on board connector i can use video signal from the video port at the back.

Thanks so much for the posts. I have a question about the 5205 model you posted with the video artifacts. I have the same identical problem with my laptop, 5205-S703, but it does not appear from the moment I turn my laptop on. Sometimes it does when I turn the laptop on after immediate prior use, but not the first time in the day. It happens on both the main LCD and any external monitors when it does happen, though. I think that this might be a problem with my system fan, because when I use high power apps, the glitches reappear and the computer freezes. The system can run for about 20 minutes if I dont use it intensively before the artifacts appear. Also, when I hold the laptop and apply pressure to the underside of the laptop near the fan and VGA area, the lines dissappear (but the system remains frozen if already frozen). Have I diagnosed my problem correctly as a fan malfunction, or do you think the video card is fried. The reason I suspect it is a fan problem is because my laptop once had intermittent fan grinding problems, and I think it may have finally died. One final thing, I thought the VGA board on 5205 laptops was discrete? Am I wrong? Thanks for your time and help.

hello, i own a compaq evo n800c laptop and i recently replaced the bezel around the keyboard which required the screen be removed. upon rebooting after the install the colors are all distorted with a lot of neon colors (blue pink green) making any picture or video impossible to see. i tried reseatting the cables off of the lcd onto the laptop itself and the problem remained. any ideas?

If the external monitor works fine then the problem is somewhere inside the display assembly. It’s either a bad LCD screen or bad video harness. It’s impossible to say witch part is failing until you install a test LCD or replace the harness.

i took my labtop outside i had it in a lab top bag and itw as really cold outside when i got home i turned it on not knowing that you are supposed to let it warm up to room temperature and the lcd screen has purple dots all over it. how do i fix it? my lab top is a acer.

Here are some basic troubleshooting steps that can help you to narrow down the problem. Start your laptop with an external monitor and see if you have the same vertical lines there. If the same video defect appears on both internal laptop LCD and external monitor, then most likely you have a problem with the graphics card. If the graphics card is integrated into the motherboard, then it becomes the motherboard problem.

did you check video on an external monitor? If the external monitor works fine try reseating the video cable on the motherboard and LCD screen. If it doesn’t help, replace the video cable, it shouldn’t be very expensive. If the problem is still there, you might have a bad LCD screen.

Hi, I have a question in need of a answer.. I have a acer aspire 3610 and the LCD screen has made everything inverted. In Order to see a picture i have to save the image, Open it on paint and invert it back to its normal color….Does anybody have any idea what is causing this and how i would go about fixing it.

Good afternoon, I love this site and have reviewed all of the questions and answers, and can not find an answer to my problem so here it goes. I own a Toshiba M35X- S114. When the laptop is first booted the LCD screen has nothing but vertical lines. After a period of time the screen goes compleatly blank. I have connected the laptop up to an outside monitor and the video works fine once i use the FN keys to move it to the outside monitor. The screen looks kinda like what you have in example one, but does not move when i press on the lcd…

reminds you of a nintendo game not all the way in . i would check the connection inside the lcd because you may have caused a tug action and unplugged it inside a little. Just a guess. since you might have not gave enough slack and when you open the monitor it pulls. Mabey you have the wrong screw in somewhere! . Does it work hooked up to an external monitor?

I have a hp pavilion zv6000, and I am having a problem with the lcd display. When I turn on the computer the screen comes in and then dims out. I move the display and it will come on again. I replaced the video cable and inverter and it is still having the same problem. Can you help me?

It’s possible that you have a loose connection, maybe the video cable connector on the LCD screen is not seated properly. Check the connection and make sure the video cable is plugged all the way down into the connector.

Maybe you are experiencing some kind of grounding issue? Remove the LCD screen from the case but do not disconnect it from the laptop. Will it work outside the case? Be careful, it might shock you. Do not touch the screen when it’s on. Take a closer look at the wireless cables, aren’t they damaged? Once I had to repair a laptop with similar problem. In my case it was happening because the wireless antenna cable was damaged and the wire got exposed. When I moved the display the wire was touching the metal hinge and the backlight was turning off. Just a guess.

I talked to a coworker at the tech company I work at and he thought it might be the LCD inverter. What I want to know is it the Inverter, Display, or Video card?

The LCD inverter provides power for the LCD screen and cannot cause this problem. If the inverter goes bad, you loose the backlight and the screen becomes very dark. The image is still on the screen but it’s very dim. I’ve never seen that a faulty LCD inverter causes a pixel wide vertical like on the screen.

When you have a faulty video card, most of the time the same problem will appear on both internal LCD and external monitor. So in your case it’s not a video card issue.

Great site! Hope you can help me. I used my wife’s Dell Inspiron 8100 (with 15″ UXGA LCD) for a long period over one night, and it was working fine when I shut it down. A few hours later, when she got up and powered it up, the screen colors were very odd, and there appeared to be alot of video noise. I thought the video card (nVidia 32MB GeForce2) was shot, so I bought a new card on eBay (nVidia 64MB GeForce4), and installed it, along with the new drivers for that card (Inspiron 8200). Powered it up, and the colors still looked bad, no change. I then tried the external monitor test, and everything looked great on the external monitor (wish I’d tried that before replacing the video card). I found the Dell diagnostic disk and ran the video tests. I discovered a test that lets you play with the individual red, green, and blue colors, by using sliders to increase or decrease each individually, showing the individual color intensity in separate boxes, and the combined color in another box. This test showed that red and blue ramped up cleanly from no color to intense color for each. However, the green color did not have a smooth transition. By moving the green slider the green color would make jumps from low to high intensity, and back again, and at many points along the path it would display video noise over the color. This affected not only the individual green box, but also the box containing the combined colors. Since I just replaced the video card, with no change, I’d rule out the video card cable connection. Could this possibly be a cable problem, or connection problem on the LCD? I’m trying to decide what part to replace next, the cable or the screen, and those screens aren’t cheap. Or, could this be a motherboard problem? Any suggestions? Thanks!

I don’t think this is a motherboard related problem. Have you tried reconnecting the video cable on the back of the LCD screen? I would try this first because it might be just a loose connection between the cable and LCD screen.

It’s possible a you have a defective wire/connection inside the video harness or the LCD itself is going bad. If you have no LCD available for testing the laptop, you’ll have to guess. I would probably go with the video cable first because it’s much cheaper and you have a chance fixing the laptop without an expensive LCD replacement.

I know exactly what you are talking about, I agree it’s a pain. Sometimes the LCD mask is glued to the LCD screen (to the metal frame) with a sticky tape, really sticky tape