LCD TV/Monitor Repair Do-it-Yourself Guide

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

An Online LCD Monitor Repair Guide

One of the best things about the internet is that it has enabled people with great knowledge to easily share information to a vast audience. This technology has given experts in almost any field of science and vocation more power to reach and teach anyone willing to listen and learn. These days if you wish to get information on almost any subject, you just turn on the computer and search online. Almost instantly you will get a response which will most likely give you all the information that you require.

However, with the vast amount if information already out there, we have reached a point that we need yet more experts to help us make sense of it all. Not all information you will find on the internet will make sense to you. But once in a while, some brilliant guy notices this and tries to fill that need to translate the jargon to a language that can be understood by those who have no expertise.

LCD Monitor repair, like LCD TV Repair, is a subject that many would not dream of getting into. But through the internet, and with people’s enterprising spirit, it is now a field wherein not just those with degrees in electrical engineering (or anything related) can get into but even those who have no previous experience and just happen to have an interest in the subject. With the power of the internet, hobbyists, beginners, intermediates and experts alike in the field of LCD monitor repair will have a way to grow and upgrade or nourish their knowledge through the generosity of other experts in sharing theirs online.

LCD Monitor Repair E-book with Four other E-books that come with the package FREE!

Jestine Yong’s LCD Monitor Repair E-book is one such example of the power of the internet and a guy’s desire to teach. If you wish to learn how to repair LCD monitors at the comfort of your own home then your best bet is getting a copy of this e-book. If you are already in the business of electronics repair and just need supplementary information or some sort of LCD monitor repair manual, this book will definitely be worth more than its price tag. Yes, the e-book does come with a price tag but you will see shortly why that should not worry you.

What does the LCD Monitor Repair course e-book contain?

• It has 200 pages worth of easy to follow step-by-step instructions that anyone can follow
• It has information that will make you understand how LCD monitors work and how to read LCD monitor Schematic diagrams.
• It will let you know how to isolate problems quickly
• It will tell you how to read the SMD electronic components codes in LCD monitors
• It will teach you how to make sense of the critical waveform and frequencies in its parts of which will help you easily diagnose faults
• It will tell you what a start circuit is and how this circuit functions
• You will discover what a stuck and dead pixel is will show you a free website that has a possible way to fix dead pixels on monitor!
• It will teach you how to test the high voltage transformer
• It will teach you how to dismantle the monitor casing and LCD backlights
• It will contain actual repair cases that the author experienced first hand
• It contains complete full color photos (about 322 photos + diagrams) to go along with the instructions which should help remove much of the guesswork!
• and many more!!!

The best part of all of this is that after you pay for and download the e-book and you feel you didn’t get what you paid for, Jestine Yong will give you your money back via his 30-day money back guarantee! This deal is virtually zero risk on your part! This alone is good indication of how good the author thinks his product is. A guarantee like that shows a lot of confidence in a product!

This e-book contains all the practical knowledge of an expert and it was written with the intention of breaking the jargon and making it easily understood by anyone who is interested to learn how to repair a LCD monitor.

Want to find out more? Click here.

30-day Money Back Guarantee Ensures 100% Satisfaction!