Ways to Clean an LCD TV

An LCD TV placed on the wall of your living room, lends an elegant look to the interior of your home. But a dusty, scratched, and spotty screen, makes it look unattractive. Touching it with dirty, oily hands or leaving behind fingerprints, affects its clarity. There are a number of cleaning products available that you can clean a TV screen with, including glass and other similar surfaces. However, an LCD screen needs extra care. Here are some tips on how to keep it clean and well maintained.

Read the Manual First

Before cleaning your TV, you must first read the instructions manual. This is the best way to find out what the right procedure is and the products that are suitable for use to clean a TV.

Precautions to be Taken

Before you start, you must keep a few things in mind. Turn the television off to avoid setting off sparks while cleaning. The screen is very delicate and prone to scratches; therefore, use a soft and clean cloth. Cotton and flannel are popular choices. Do not opt for a newspapers, paper towel, tissue, etc. Do not spray the product directly over the screen, as it can leak into the frame.

Never apply pressure over the screen while cleaning it; this causes it to have dead pixels and lead to loss of image in that part of the screen. Do not use strong chemicals like alcohol, ammonia-based cleaners, or window cleaning products. Remember, your LCD needs to be treated differently, compared to windows and glass doors.

What You Can Use for Cleaning

You can safely use the following ingredients to clean a TV screen:

  • Filtered water
  • Distilled water
  • Mild liquid soap
  • Isopropyl alcohol
  • Petroleum benzine
  • Vinegar diluted in distilled water
  • Commercial glass cleaners (especially formulated for TV screens)

You must strictly avoid using the following ingredients:

  • Tap water
  • Ammonia
  • Ethyl alcohol
  • Ethyl acid
  • Acetone
  • Toluene
  • Methyl chloride
  • Commercial glass cleaners containing ammonia

Procedure

  • For regular cleaning, use a soft cloth and wipe the dust from the TV screen and frame. Use a cotton swab to clean dust along borders and in corners.
  • For accumulated dust, take a soft cloth and dampen it using one of the solutions mentioned above; wipe the dirt off. Stick to horizontal or vertical strokes while wiping.
  • If you are wondering what to do with fingerprints or other oily, dirty spots on the screen, then dampen a cotton or foam swab and wipe the dirty area. Apply even pressure on the screen and rub it a few times to clean it completely.

These tips can help you clean your TV safely. So, follow them and enjoy the clarity of your television.

Tips on Repairing a Broken LCD TV Screen

So it’s hardly just been two or three years for your LCD screen to serve you with all the entertainment and one fine day, what you see is, you have a big dent in the screen, probably due to some obvious reasons or perhaps some internal technical reasons. Whatever be the reason, the bottom line is- you have a broken LCD TV screen and you are on a high to either learn to fix it or replace it entirely. The broken LCD screen problems can not only arouse in television sets but laptops are also prone to such issues. Many people have this tendency of repairing a particular piece of electronic item rather than going for its overall replacement. While many others believe that if the repairing cost is tossing out to be more than the cost of the whole replacement set, it’s better to purchase a brand new LCD screen and fix it to the old unit. Well, this thought isn’t bad either! But there are two most important points one has to look out while going for the replacement procedure and they are: firstly, see that the screen hasn’t extended its warranty period. And secondly, the consumer needs to find a reliable seller or manufacture if he/she wants to buy the LCD screen in a good price. Later on, they might also have to find reliable service men who can fix the new screen and do the overall job correctly. The cost carried for the same is different. So, although replacement sounds like a good option, it is bit lengthy and fallible. It is advisable that one should go for the broken LCD screen replacement procedure only when there are a chain of problems in the whole working unit and not just one or two.

Usually an LCD TV screen has a good life expectancy up to 10 years. Moreover, the value of the monitor/screen increases with the resolution, size and clarity of the panel installed in the screen. So, if there is any sort of malfunction or damage done to the screen, the cost of its repairs comes with a price too! Fortunately, half your cost of paying the service men would be saved because with some lucid steps explained on how to repair a broken LCD screen given below, all you have to think of spending your money on, is, to buy a replacement screen and do the rest of the job all by yourself.

Signs of a Broken LCD TV Screen

Well, under this subject the most common problem why an LCD TV screen fails is the dimming of the back-light after a significant use. However, there are other obvious signs like, the system starts off but the screen is blank. May be there’s an issue with the panel whose job is to display a picture. Also, the problem of blank screen appearing can be due to the panel not receiving good amount of data or power from the source. The full form of LCD is liquid crystal display which is made of two glass layers wherein, the outer layer is constructed to protect the inner layer. So if there is an ugly crack on the outside layer of the screen, fixing the same is an easy job. No specific glass is required nor any special tools are needed. All that is required is for you to look down ‘coz now it’s time to read the procedure for replacement..

How to Fix a Broken LCD TV Screen

For now all you need is a small screwdriver and of course a replacement LCD TV screen to replace it to your old unit.

Step #1: In this first step of repairing the broken screen, it’s important to turn off the TV, unplug the power supply and place it face down on a working table carefully.

Step #2: Using the screwdriver unscrew all the fasteners from the television and also detach the back panel from the unit. This will give you a clear look at the motherboard situated at the center of the TV behind the screen.

Step #3: Also what else you would see is an inverter board mounted at the side end of the motherboard. Remove all the inverter screws and expose the whole unit. There will be a bunch of cables connected to various ports. They transmit electrical power to the LCD screen.

Step #4: Your first job to do is, check for all the connections of the inverter board to see whether they are properly secured or not. If they aren’t, unplug the cables and try plugging them back into the ports. Power the screen and see if its working, if not, then go ahead.

Step #5: Remove all the fasteners, plugs and connections from the ports in the board and pull out the whole board from the TV set and keep it aside.

Step #6: Now replace the old for a new board. Fit the new replacement board in the television, and hopefully you have marked the positions of the cable connections. Join the cables together and attach all the screws back in place. Lastly, replace the back cover of the inverter and also the rear panel of the television carefully.

No matter with how much care and precaution you handle your electronic devices, if accidents have to happen, they will! And when they do, don’t fear or panic, just remember to read this article (if in case again) and you have your solution in hand!

Knowing LCD TV Repair Cost

Discussing the cost of repairing an LCD TV is always a tricky subject, as the cost will depend on what is wrong with the TV. Then again, parts from different manufacturers have different prices, leading to more uncertainty in determining the cost. Labor charges too, depend on the complexity of the TV set in question, and the part that needs to be changes. All this relates to a very varying final bill that you will be presented with. Hence, what is important here is to diagnose the problem, and then determine if spending the estimated amount of money to repair the problem is worth it or not. For simple problems, like replacing the backlight, it is more feasible to repair, as backlight replacement costs about $85 with labor included. If you are a DIY person, and can take the risk of ruining an expensive LCD, you can replace the backlight for as low as $20. The main unit, also called the motherboard, is slightly trickier, and more expensive as well. This cost can go as high as $300, so depending on how old your TV is, it might be better to just buy a new TV. Another instance where you should definitely chuck your old TV and opt for a new one is when the LCD panel itself needs to be replaced. This costs more than half of the TV price and it is never worth spending that much money to replace or repair it. Simply exchange your old TV for a newer one.

Other problems like speakers not working, no sound, remotes not working, or IR sensor replacement can all be done by professionals and these typically do not cost too much. Remember that for these, most of the cost will be for labor. So unless the problem is too severe, you should do all you can at home to resolve the problems. If you do need to send it out, consider the fact that you can get a decent new TV in about $500, which will feature the latest technology. If you are going to spend anywhere close to that amount on repair, it is just not viable.

Basic Problems and Repair Techniques

When you have spent upwards of $500 buying a high-end LCD, you end up thinking that repairing it would also cost a bomb. However, some problems that LCDs typically face can be resolved right in your home, that too without any professional skill. Consider the case of dead pixels. In most cases, dead pixels are simply pixels that are stuck, or have not been energized enough. This can be remedied in a couple of ways – the simplest of these are either tapping the dead pixels gently with a blunt pencil, or by using a pixel corrector DVD. Be careful if you are using the pencil method, as too much force can damage the LCD panel, which is very expensive to replace. Other issues related to fuzzy picture, bad audio, poor picture and the like can also be tried to be solved at home before calling in the professionals. These issues are usually due to bad settings, incorrect wiring and/or loose connections, with HDMI connections being a major culprit. If these simple solutions don’t solve your problems, then it is more likely that some part(s) need to be replaced, and this is what drives the cost high.

Tips on LCD TV Repair

Facts like the warranty period of your LCD TV should be looked at carefully before opting for repair. If the problem is backlight related or a blurred image, then the vendor of your TV can get it done for free, if under warranty. However, if the damage is due to improper maintenance and not following the instructions that came along with the TV manual, then of course, it’s the right time to search for professionals who can repair the TV. Most manufactures also provide extended warranty when you buy an LCD TV. This usually costs about 15% of the TV, and is highly recommended while purchasing a TV. An extra 15% at the time of buying can help in saving hundreds of dollars later on. Also be sure that you give your TV to a certified professional, otherwise you might end up causing more harm than good. And never try to repair an LCD TV at home unless you are 100% sure you know what the problem is, else you might just end up replacing parts without solving your problem.

Remember that LCDs have an average life of about 20 years, or 40,000 hours. If your TV is relatively new and you still have problems, then maybe replacing it is not the solution. For older TVs, replacement is a good option as you get something newer in almost the price you would have paid for repair. However, for those who have newer sets, the silver lining is that after repair, an LCD TV can still have a life of 10 years or more, so all is not lost. While the cost should be the main factor in influencing your decision of repair or replace, keep in mind the age of the TV as well before you make your decision.

How to Fix Scratches on an LCD TV

LCD (Liquid Crystal Display) screens are known for their clarity, good picture quality, and energy-efficiency. This is the reason they are widely used in almost all the devices, such as computers, TV, mobile phones, etc. These screens are very delicate and must be handled with care. But, no matter how many precautions you take, they are bound to get scratched. These scratches cannot be removed or fixed completely, but can be made less apparent with the help of some simple but effective methods.

Before any fixation, check the LCD’s warranty period. If you are under the warranty, then you will get a free repairing service from the company. In case the scratch is deep and long, then it is better to get it repaired from a professional.

Different Ways to Fix a Scratch on an LCD TV

You cannot fix the scratches completely on an LCD TV but you can camouflage them for a pretty good period. Following are some of the methods that you can follow to get the scratches fixed.

★ Petroleum Jelly Method

Things Required:

  • Water
  • Clean microfiber cloth
  • Petroleum Jelly

Method: Clean the surface with the help of water and cloth. Let it dry for sometime. Now take about 1 tsp. petroleum jelly and fill the scratches. Once all the scratches are filled, take a clean cloth and gently wipe off the extra jelly. You will see that the scratches are lighter, if not completely invisible. You may have to reapply if it wears off.

Precaution: While wiping off the excess jelly, do not press too hard, as it might leave some traces of the jelly inside the scratch.

★ Pencil Eraser Method

Things Required:

  • Clean microfiber cloth
  • Water
  • Eraser

Method: Clean the scratched area properly with the help of water and a clean cloth. Let the area dry. Now take a clean pencil eraser and start rubbing over the scratch lightly. Rub it along the direction of the scratch. Keep doing it till the scratch disappears.

Precaution: Get a clean eraser without any pencil graphite, as this graphite will smudge on the screen and make the scratch dirtier.

★ Isopropyl Alcohol Method

Things Required:

  • Water
  • 2 Clean microfiber cloth
  • Cleaning solution (isopropyl alcohol and water)

Method: First of all, prepare a cleaning solution. Dilute 1 part isopropyl (rubbing) alcohol with 20 parts of water. Now clean the scratched area with a cotton cloth dabbed in water. Let it dry. Dip another cloth in the cleaning solution and work on the scratch, cleaning the area gently. Keep cleaning till the scratch disappears. Now take the swab which was dipped in water, and clean the alcohol from the screen. The cleaning solution helps remove the scratch by dissolving the anti-glare coating which fills the scratched area.

Precaution: If the solution starts smudging, then stop immediately. Do not use a strong alcohol. The strength of alcohol should not exceed more than 35%.

★ LCD Scratch Repair Kit

You can easily get LCD scratch repair kits in the market under different brand names. These kits are specially made to remove scratches from any LCD screen. These kits generally contain a polishing paste and microfiber cloth. This kit will have simple instructions which you can follow and get the scratch fixed.

How to Prevent Scratches on Your LCD Screen

By following simple precautionary steps, you can actually prevent your screen from getting any types of scratch.

  • Do not use paper towels, tissue paper, or old cloth to clean the screen. Always use micro-fibber cloth for cleaning, as it does not harm the screen.
  • Do not rub anything against the screen, like a dirty or wet cloth, or any other material that may damage the screen. Even while cleaning, do not apply more pressure.
  • While cleaning the screen, check if there is any dirt on the cloth, that can harm the screen
  • Use an LCD TV screen protector which will protect your screen from any scratches.

All the methods mentioned in this Buzzle article are helpful in fixing only small scratches. If the scratches are long and deep, then you either need to give it for repair, or get the LCD screen replaced. The best way to prevent scratches is to get an LCD screen protector, which will not only save your screen, but can also be easily replaced in case of damage.