LCD TV/Monitor Repair Do-it-Yourself Guide

Learn how to repair LCD TVs with:

Learn how to repair LCD monitors with:

Looking for projection tv repair tutorials on the internet is not an easy thing. More often than not, focused tutorials on repairing a particular electronic unit will be very hard to find and if ever found, will not be as complete as you would prefer it to be. They will probably be in bits and pieces and scattered all over the internet which you will still definitely need to search for and piece together somehow.

This is the reason why being able to find a forum that specializes on the type of information you are particularly searching for on a specific electronic item may be considered a lucky thing since these sites will usually have a lot of data about your particular interest— this being that they are a site focused on a subject. The only problem with them is that most of them may require payment in exchange for the membership.

Paying for it isn’t necessarily bad especially if it goes to paying for the webmaster’s efforts on making his/her forum really functional for its members. Joining fees are there to make sure that help sites like them will continue helping people out in their search for information.

I am currently a member of such sites to help me in quest to learn LCD and plasma TV repair. Most of them ask for a one-time payment in exchange for lifetime access to their database which contain tons useful information. The reasons why I like these sites are further enumerated below:

1. Some pay sites that offer, say, plasma and LCD TV repair training information have one-time membership fees which I think are cool because you will also have access to future database additions without incurring additional charges. The site owners usually promise to regularly update the information contained in their sites and allow access to all members at no extra cost.

2. These pay-sites have spent a lot of time and resources gathering the things you need like the training and service manuals, schematic diagrams, step-by-step how-to guides that make life a whole lot easier. Basically almost everything you need are there ready for you to download and digest. Imagine how much time will be saved when you choose this route as opposed to going the free-to-join sites that waste a lot of time and effort (scouring search engine result pages).

3. In terms of cost, you save a lot more money not only in terms of time but actual money. There are some sites that offer pay-per-download service which are not necessarily training membership sites. Each manual cost around $10 up.

Sites that offer one-time fees just give out those repair manuals virtually for free. Those that ask for 50 dollar membership fee typically has at least 400++ manuals that are ready for downloading anytime. Since no per manual fees are asked, considering the $50 joining fee, each manual will come down to just 13 cents per copy. This kind of a deal is ideal for anyone who wish to make a career out of electronics repair!

4. Studying how to repair electronics through online electronics repair forums and training sites have the advantage of affording a lot of convenience for the recipient because you can study anytime and anywhere you may be. Most people will love the convenience of learning right inside their homes or offices instead of going out to real schools with real classrooms.

5. The speed at which technology is developing can become very profitable for those who provide related services to them such as electronics repair, assuming, of course, that they are able to keep up. Online repair courses such as plasma and LCD TV repair courses give them some fighting chance by providing the needed information bring them up to date. These training sites are a boon to the electronics servicing field.

If you have been keeping tabs of current events in the flat screen TV industry, you probably know that it has been going through some pretty huge demand surges that only support the hypothesis that the TV repair industry is still in bloom. Take heed of this huge potential money-maker by training yourself and your crew on how to repair new electronics like LCD and plasma TVs and other flat screen televisions that are coming out so that you won’t get left behind. Watch out for an influx of plasma and LCD TV repair owners begging you to fix their televisions!

LCD Monitor Power Supply Repair Tip

Diagnosing and troubleshooting the LCD monitor power supply pack is quite easier than diagnosing and troubleshooting that of the CRT monitor. They are more compact and are smaller and they generally have just one output which is 12 volt and range between 2 to 4 amperes. There are some designs that uses 18 and 24 volts. Today, most LCD monitor power packs are built right onto the main board like in the Dell E151FP LCD monitor. Older LCD monitors have their power supplies as separate power pack modules.

The power pack module type is simpler to troubleshoot because you can just replace it working unit isolate if it is really the power pack that is faulty. You could likewise use a DC external power supply to power up the monitor to diagnose if it is really the power pack.

Now, If you do not have an external DC power supply to use, you can just use the following method to ascertain the problem especially for cases of no power, low power and power blinks: Connect a 12-volt light bulb (like the bulbs used in rear lights of cars), to the power pack output jack. If the bulb is lit up brightly then there is nothing wrong with the power pack. If it blinks or dims up, then the power pack has a problem.

From previous experience, most LCD monitor power supply problems, whether in the power pack or built into main board, are usually due to the failure of electrolytic capacitors (most probably caused by overheating) in the primary and secondary sections of the board. Most of the capacitors will have a high ESR readings which produce low power supply output, cause power blinks or complete power outage. The typical values of electrolytic capacitors in the primary side are 47 and 100 micro farad 50 Volt. The secondary sides are about 1000 to 2200 micro farad 25 volt. On occasions you will see the capacitor’s top casing bulge out and the sleeve that covers the capacitor casing would be brownish. The capacitors are busted.

The power supply section in some LCD monitors still use the UC3842 pulse width modulation (pwm) IC. Replacement for this kind of IC’s are easier to find than other power IC’s. One example would be the Samsung 153V LCD monitor which uses the TOP247F power IC which is easy to diagnose when it is not powering up properly.

Diagnosing and the LCD monitor power pack/supply is not that hard if you have a little understanding of how the power supply works.

Guest author of this article is an electronic repair guru by the name Jestine Yong. He has an lcd monitor repair training e-book which you may want to check out to learn more about electronics repair. To find out more, please go to this lcd monitor repair course website.

Related site that you might be interested in: lcd tv repair course