tft lcd monitor troubleshooting price

Over the years, LCD modules and LCD displays have grown in popularity. Companies in many different industries, including but not limited to the medical, automotive, consumer, food services, industrial, and technology sectors rely on at least one TFT LCD module or TFT LCD display on a daily basis. Although touchscreens are very durable and designed to withstand the hands of time, older modules and displays sometimes need to be repaired. When weighing the cost of having your displays repaired, you should take the time to consider your options.

After doing some research on the cost of repairs, many business owners find that it makes more sense to have their TFT LCDs replaced. Although units may cost less to repair initially, the cost of having to repair your older displays over and over again can add up. This is because older units may need to be repaired more than once. Even if multiple repairs will not cost any additional money, repairs lead to downtime and can have a tremendous impact on your business.

Older units in need of repair can have a long-term impact on a company’s bottom line. This is because outdated displays do not perform as well as new and improved displays. As many business owners have come to discover, new and improved touchscreen technology can increase efficiency, boost productivity, and improve customer satisfaction. This a top reason why so many companies decide to have a TFT LCD display or module replaced.

Hello , I.recently received a CORNEA MP704 monitor that when I went to connect the power supply I realized that it had no center pin in the connection. I dissembled all the way where I was able to de-soldered the adapter plug port from the mother board and replace only the center pin in the connection and then resoldered it back to the mother board . Upon disassembly I had to unplug the ribbon that was for the front user circuit board ,the LCD connection at the screen and mother board , I then unplugged 2 top and the 2 bottom back light connections from the power board removed mother board from casing unpluged 2 additional ribbons from main power board to mother board . After reassembly and connecting it to my tower when I powered every thing up my monitor would flicker on then off for only a fraction of a second for about 3-4 times only during boot up . The power light would stay constantly lit till I powered off the tower then it would blink as normal . Turning on the tower again would have the same results . I then connected my laptop to the monitor and that also give the same results as the tower . I decided to dissemble the monitor once again to double check the connections and noticed the ribbon connecting to the front user panel was not quite all the way plugged in and 1 of the 2 bottom back light plugs had 1 of the 2 pin connectors making contact. I reassembled everything back together ,powered it back up and wa-law it works perfect . My experience with a flickering monitor tells me that the problem is associated with the back lights in the monitor and for anybody that has had work done on there monitor well you better double check your connections. Hope this might help

Hey, hello. I have a LG Flatron W1942S monitor & yesterday it didn’t want to turn on at all. The diode on it, didn’t even change color at all, just was grey all the time. I wiggled around the power cable & somehow it turned on. Today I wanted to turn on my PC, but the monitor didn’t turn on at all, the diode sometimes turn on for half a second & then goes grey. Trying to troubleshoot what is happening for the past half hour.

I have a LG m2362d monitor that developed a red vertical line on the right side of the screen, I cleaned the cable contacts & I was wondering if changing the logic board would fix it?

I am using a LG LCD monitor connected to the desktop. On startup it changes color.After switching off and on the monitor it restores its original color. It happens every time when I boot the desktop system, Why does this happen? Please clarify

i also have an Ge L22WTQ, 2 YEARS Previous then one night time the idea travelled unusual on us! The display proceeded to go grainy, and the contrast/gradient is very harsh on movies and pictures. I have recast to default qualities in the display screen and I surely understand that is not our graphics card, or perhaps connectors as I am having simply no issue operating an Horsepower W2216 using the same configurations and physical objects. I have routed the product to whirlpool to be set, on the other hand they did not seem to solve the colour issue. Really does anyone realize precisely why i am having this difficulty (with the monitor/troubleshoot) so I can understand what i am talking about while i call Ge again.

I still can"t believe how many “black-screen-of-death” lcd monitor owners have not viewed some of the “lcd monitor disassembly” and “lcd monitor repair” videos on YOUTUBE!!! Some units can be repaired on a DIY basis for less than $6 US in parts. I"m 12fixlouie over on fixya. com

My gateway lcd computer monitor blurs when bumped, if I bump it hard enough the picture clears up for a liittle while but then gets blurry agian? What is causing this? Thanks.

I have a problem with my Monitor. For some reason my monitor isn"t displaying different shades of color properly. Some colors are smooth but others seem to have tiny vertical lines which seem to appear more in darker colors. Is this fixable or do I need a new monitor?

Another reason a laptop display may flicker is the ‘Inverter’ is on its way out. In the same way as a flourescent tube flicker may be caused by the ‘starter’ failing, an LCD backlight may flicker due to the inverter board (which generates the high voltage needed to ‘kick’ the backlight into operation) starting to fail.

Please assist….my Sony Bravia 32″ LCD screen exhibits a dark cloudy mark which blends in to some images but irritates when a light background is present. The device is two years old. What is wrong and can it be repaired?

You know, at first I thought this article was written by a fairly informed person, right up until I read this: “The cost of repairing an LCD monitor will usually cost more than replacing it outright.”

I’ve been repairing LCD monitors and TVs since they hit the market. Who ever told you they are not worth repairing? We repair boards (main, power, inverter) and replace backlights. Repair costs usually run less than half the price of a new monitor.

For example, repairing a 22″ LCD with a bad backlight would cost about $60 labour and $15 to $25 for the light. Making the repair $75 to $85 Canadian (U.S. and Canadian dollars are pretty much at par right now).

Often the problem is a few capacitors, which would reduce the cost to under $70. A 15″ or 17″ monitor would run $50 labour, and in the case of the 15″ may not be worth repairing unless you are using it in a specific location because of its small size. (We get units from stores and restaurants all the time and they are happy to pay to get a 15″ monitor repaired).

I often see LCD monitors and TVs in trash bins around our city, and I am forced to wonder why they didn’t try to have it repaired. If the trashed units are in good condition, I will repair them and sell them at 1/2 the cost of new.

Please, if you don’t know about a subject don’t write about it. Some of these people may have thrown out valuable monitors that could be repaired at a worth while cost because they read on your website that’s it’s not worth repairing them.

I’ll spend the extra $54 for new with a 3-year parts+labor warranty. And although this is just a wild guess, I’m fairly certain you don’t offer a warranty that comes anywhere close to that for the monitors you repair, assuming you even offer a warranty at all.

We offer a 90 day warranty as is standard in our industry. Most people here purchase their monitors from stores. I myself just purchased a 23″ Samsung 16 x 9 fpr $197.

Prices are coming down fast, however that doesn’t stop people from getting their monitors repaired, as we do it every day. As I stated, our price for a 22″ LCD monitor repair is $60 plus parts. $60 is an hours labour. Anyone of reasonable skill can repair any 22″ LCD monitor in under an hour. If you’re quoting $100 (or more) then that is either for a board replacement or it’s from “Rip Offs Are Us”.

I’m with you! We throw out way too stuff in our society. The best way to recycle products in our world is to keep using them. I sure would appreciate your assistance and guidance with a ViewSonic VG175 a friend has given up on. We need one and things are tight (as I’m sure you’ve seen up there, too). I’m having no luck finding repair and diagnosis manuals that don’t cost as much as a new monitor. Any help and direction would be appreciated! Thanks, Dave

I have a problem with monitor. When I start computer windows start normaly , but monitor just stay black. After restart computer everything is normal, windows and monitor start. What is the problem? Thanks!

I had a dell inspiron 1420 that had horizontal wavy colored lines that looked somewhat like static lines, and had distorted images. I replaced the LCD display with a Dell refurbished LCD display. WORKS GREAT

I have a dell inspiron 1420 and while i was using in my monitor suddenly started displaying white as pink black as flourecent green and the hole screen looks fuzzy (as if part of the picture is copied over a milimeter to the left)

I have an LCD monitor Philips 170S6, which recently started showing a message: “Attention! Security Flag Off”. Could someone share how to fix the problem. I hasn’t done something like that before. Please help.

i also have an LG L22WTQ, 2 YEARS OLD then one night it went weird on me! The display went grainy, and the contrast/gradient is very harsh on videos and pictures. I have reset to default properties in the display screen and I definitely know it is not my graphics card, or connectors as I am having no issue running an HP W2216 using the same settings and objects. I have sent the product to lg to be fixed, however they did not seem to resolve the colour issue. Does anyone know why i am having this problem (with the monitor/troubleshoot) so I can understand what i am talking about when I call LG again.

I had replaced the old CRT in my computer with new LCD Ttype LG FLATRON W1942S but after one month I face aproblem when I am using walky talky few meters far away

then the LCD power becoms OFF & ON after that this happened again but the LCD did not work with no power light only if the walky talky pressed transmit the power light goes ON without bright in the screen.

We have similar problem. Mine is an LG L22WTQ, 2 years old LCD monitor. Just as what you did, I had already isolated the problem, not an AVR problem, not a power outlet problem, and not a power cord problem. I also tried replacing the male power cable port, the one located at the back of the monitor, but still, the problem is unsolved. Sometimes, my monitor works, and sometimes, it does not. About 2 to 3 times of unplugging and replugging the power cord connected at the back of my monitor resolves the said problem. But then, I want to resolve it totally. It might be an electronic component problem. A capacitor?…… or something related to it…… Anyone who knows how to troubleshoot this problem would be very much appreciated……

I have an LG L1915S LCD monitor that’s a few years old, and it just recently quit working. I unplugged it and plugged it back in, and for a second the little light by the power button flickered on, and then off. The monitor is only a few years old, but it does get a lot of use. I’m fairly sure it’s not a video card issue, because it seems as if the monitor itself won’t turn on.

FWIW, I got it to work. Had to set the computer up for shutdown, with the final mouse click waiting. Set the input to DVI in the monitor’s menu, then clicked the mouse. PC shut down, then I detached the VGA from the video card. That seems to have been the secret, along with doing a cold boot. The monitor found the input, and it works now.

I have a new flat screen monitor. When using the VGA connection to the PC, the desktop has ghosty wavy lines. I replaced the cable with a DVI cable trying to eliminate the lines and increase the quality of the picture. The PC has DVI-I output, the monitor has DVI-D input. The cable is DVI-D to DVI-D. When selecting the DVI input on the monitor menu, the screen goes black.

Prices for TFT modules and panels for Raspberry Pi are insanely high, given facts that you can get 17-19” computer monitors today for below 100$ USD even new!

I went dumpster dive and got 19” Chimei generic monitor, which had DVI interface and good panel. It’s important to have DVI, as Raspberry Pi have HDMI output which can be easily interfaced to DVI with just passive adapter. Monitor frame and plastic was removed and stripped, revealing panel in metal frame and two boards on top of it:

Monitor was manufactured in 2006 according to date codes, so it’s 10 year old. Problem with it is obvious: bad capacitors on power supply. PSU itself have Delta mark, but it’s cost down a lot and using bad CapXon caps in place. You can see them bulged.

RV Solutions is one of the most prominent companies in service industry. RV Solutions has a large set up of LCD/PDP monitors, and only monitors. We are proud to point out that no other companies can compete with our specifications in North India. With the newest LCD Repair Equipment, Our Trained Technicians are being able to perform the most sophisticate repair jobs on LCD monitors at the fractions of the price of full LCD panel replacement.RV Solutions has developed the capability of providing all repairs on LCD Panel for different customer. All Repairs are carried out at certified class 10000 (ISO7) clean room environments for better Delivery. Proprietary equipment allows us to receive only the LCD panel for service, thus cutting your cost of shipping the complete units to us. Also, it reduces the practice of scraping or shipping defective product to overseas. Limiting these practices saves our customers considerable sums of money and down time. Our Proprietary equipment can cope with today’s largest size of LCD Panel.We stock Some parts for LCD Panel, Such as Backlight Lamp (CCFL Lamp), TCP. RV Solutions has the ability to process hundreds of LCD Panel per month. Throughout the process. RV Solutions advanced computer tracking system can provide a variety of report to meet our customer’s need, down to screen typed details.

Displays can be created using various technologies and materials, including cathode ray tubes (CRT), liquid crystal displays (LCD), light-emitting diodes (LED), and plasma.

Troubleshooting CRTs versus LCDs begins with similar steps, but diverges due to the differing natures of the two display types. The first troubleshooting steps are similar for either display type: power down the system and display and then power them back up; make sure the power cable is connected and that the outlet has power; verify that the signal cable is connected firmly to both video adapter and display and that there are no bent pins; verify that the video adapter is configured properly for the display; try the problem display on a known-good system, or try a known-good display on the problem system; and so on. Once you"ve tried the "obvious" troubleshooting steps, if the problem persists, the next step you take depends on the type of display. The following sections cover basic troubleshooting for CRTs and LCDs.

If your LCD displays no image at all and you are certain that it is receiving power and video signal, first adjust the brightness and contrast settings to higher values. If that doesn"t work, turn off the system and LCD, disconnect the LCD signal cable from the computer, and turn on the LCD by itself. It should display some sort of initialization screen, if only perhaps a "No video signal" message. If nothing lights up and no message is displayed, contact technical support for your LCD manufacturer. If your LCD supports multiple inputs, you may need to press a button to cycle through the inputs and set it to the correct one.

Unlike CRTs, where increasing the refresh rate always reduces flicker, LCDs have an optimal refresh rate that may be lower than the highest refresh rate supported. For example, a 17" LCD operating in analog mode may support 60 Hz and 75 Hz refresh. Although it sounds counterintuitive to anyone whose experience has been with CRTs, reducing the refresh rate from 75 Hz to 60 Hz may improve image stability. Check the manual to determine the optimum refresh rate for your LCD, and set your video adapter to use that rate.

First, try setting the optimal refresh rate as described above. If that doesn"t solve the problem and you are using an analog interface, there are several possible causes, most of which are due to poor synchronization between the video adapter clock and the display clock, or to phase problems. If your LCD has an auto-adjust, auto-setup, or auto-synchronize option, try using that first. If not, try adjusting the phase and/or clock settings manually until you have a usable image. If you are using an extension or longer than standard video cable, try connecting the standard video cable that was supplied with the display. Long analog video cables exacerbate sync problems. Also, if you are using a KVM switch, particularly a manual model, try instead connecting the LCD directly to the video adapter. Many LCDs are difficult or impossible to synchronize if you use a KVM switch. If you are unable to achieve proper synchronization, try connecting the LCD to a different computer. If you are unable to achieve synchronization on the second computer, the LCD may be defective. Finally, note that some models of video adapter simply don"t function well with some models of LCD.

The best way to adjust clock and phase is to use auto-adjust first. Check the utility and driver CD that came with the monitor. It may have a wizard or at least the appropriate background screens to use while adjusting phase and clock settings. If not, go to the Windows Start menu and select Shutdown. When the screen goes gray and the Windows Shutdown dialog appears, leave that dialog onscreen, but ignore it. Use the gray screen to adjust clock and phase manually. Any problems with clock and phase and any changes you make to the clock and phase settings are clearly evident on the gray screen.

Always adjust clock first. Clock is usually not a problem if you have used the auto-adjust feature of your monitor, but if you do have clock problems they will be evident as large vertical bars on your screen. Tweak the clock setting until those bars disappear. Then adjust phase. Phase problems are evident as thin black lines running horizontally across the screen. Adjust phase until the lines disappear or are minimized.

Your video card is supplying a video signal at a bandwidth that is above or below the ability of your LCD to display. Reset your video parameters to be within the range supported by the LCD. If necessary, temporarily connect a different display or start Windows in Safe Mode and choose standard VGA in order to change video settings.

This occurs when you run an LCD at other than its native resolution. For example, if you have a 19" LCD with native 1280x1024 resolution but have your display adapter set to 1024x768, your LCD attempts to display those 1024x768 pixels at full screen size, which physically corresponds to 1280x1024 pixels. The pixel extrapolation needed to fill the screen with the smaller image results in artifacts such as blocky or poorly rendered text, jaggy lines, and so on. Either set your video adapter to display the native resolution of the LCD, or set your LCD to display the lower-resolution image without stretching the display (a feature sometimes referred to as display expansion), so that pixels are displayed 1:1, which results in the lower resolution using less than the entire screen.

This is a characteristic of LCDs, particularly older and inexpensive models, caused by defective pixels. Manufacturers set a threshold number below which they consider a display acceptable. That number varies with the manufacturer, the model, and the size of the display, but is typically in the range of 5 to 10 pixels. (Better LCDs nowadays usually have zero dead pixels.) Nothing can be done to fix defective pixels. Manufacturers will not replace LCDs under warranty unless the number of defective pixels exceeds the threshold number.

Again, this is a characteristic of LCDs, particularly older and inexpensive models. The after-image occurs when the display has had the same image in one place for a long time. The after-image may persist even after you turn the display off.

Transistor-based pixels in an LCD respond more slowly than the phosphors in a CRT. The least-expensive LCDs exhibit this problem even with slow image movement, as when you drag a window. Better LCDs handle moderately fast image movement without ghosting, but exhibit the problem on fast-motion video. The best LCDs handle even fast-motion video and 3D gaming very well. The only solution to this problem is to upgrade to an LCD with faster response time.