Learn How to Solder Electronic Components & Circuits

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One of the key skills that you need to master if you wish to learn how to to repair flat screen TVs or any electronic devices for that matter is the skill of soldering. This video series courtesy of Pace Worldwide provides the basics on the really fine art of soldering. It is a 9-part Youtube video actually that covers a lot of aspects of soldering for electronic circuit boards and should be watched by beginners. Although the video seems to have been shot some decades ago, the techniques shown are as relevant today and there should be no problems applying them today.

You can watch all 9 parts of the video below or you could go watch them piecemeal, 1 lesson at a time (look further below for the links to each lesson):

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Electrolysis-damaged Sony Bravia LED TV circuits can be fixed

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This is a sort of a follow up to the previous video post we made on the water-damaged Sony Bravia LED TV based on an interesting comment from a reader who thought the TV could be repaired easier than what norcal715 thought, who suggested the unit may be headed to the landfill.

A commenter going by the handle Travis indicated that the unit could be saved from the landfill and be repaired but his method is nothing short of surgical (you literally need a scalpel) in nature so you’ll need some surgeon’s skill to be able to accomplish this.

Here’s what Travis suggests:

“To fix this isn’t as difficult as you think. Find an old pcb board that you don’t use anymore, old VCR’s dvd players etc. Find a thin piece of track that is close to the same size as the ones that are broken on your TV. Use a scalpel blade to first remove the solder mask from the track on the old PCB. Gently cut the track to the appropriate length and peel it off from the old PCB with the scalpel. This may take a few practice runs to get it right . Next, scrape the back of the track to remove all the glue . This is the hardest part, I cant tell you how many pieces of track that jump away on me never to be found. Now go to the TV and scrape away 2x the track thickness of the solder mask on each side of the broken track. Using flux, add a small amount of solder to 1 side of the track. use alcohol to clean any old flux and solder mask debris. Add a small amount of flux again and with a pair of tweezers solder one end of your track to the TV. Gently clean area again. You may have to reposition the track, now is the time to do it. Always add flux and clean. Once you have it lined up, use the tweezers to hold down your track and solder the other side and clean once again.”

Now, if you’re doing this professionally you’ll need to consider how much time you’ll need to accomplish this repair and charge for it so yes, you’ll need to be able to do a little cost-benefit analysis and advise the client accordingly. Based on your skill and experience, I think you might still actually make some money from this repair and make a customer happy (by keeping repair costs low considering materials you need should be cheap to find). If you’re doing this DIY on your spare time then I think it’s a pretty good learning experience to be able to do this regardless.

Here’s the video once again:

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Troubleshooting & Repair Information for Newer LED and 3D Flat Screens

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If you’ve been following this site for a while now and are wondering if the TV repair courses (like the training programs created by electronics expert Kent Liew & Jestine Yong) that I’ve featured in the past would still be applicable to today’s newer crop of flat screen TVs like the newer, more impressive LED and 3D televisions then I think that you’d be happy to know that yes indeed, this training course now include information that will enable you to understand, troubleshoot and repair newer television display technologies.

Attention-LCD TV Membership copy

Is there a big difference between LCD and LED TVs?

The transition should be easier than most people think because the newer technologies are only built upon the innovation on previous implementation of the older technologies. Case in point are the so called LED flat screens of today. Not all people know that these are simply applications of improved LCD back-lighting technologies using smaller, lighter and more energy efficient LEDs (light emitting diodes). These devices still use LCD screen displays but instead of the older CCFL* back-lighting, they use LEDs. And since LEDs are more compact, these enable designers to come up with slimmer and lighter models (check out “edge-lighting models”) that we see a lot today. Take note: LED TVs are simply LED back-lit LCD TVs and while manufacturers seem to package these things as newer technologies, one is simply the progeny of the other. In fact, for the sake of transparency, regulation should direct all manufacturers to categorize them as “LED LCD TVs” in the packaging! 🙂

The same goes for 3D flat screen TVs as these are basically the same LCD screens re-designed and modified for 3D viewing.

Hence, the same troubleshooting and repair principles should apply to these newer display screens and it should be easy for most electronics repair people to transition.

>>>>> Visit Kent Liew’s LED & 3D TV Repair Training Resource Site <<<<<

*CCFL – cold cathode fluorescent lamp

Sources:
http://tv.about.com/od/frequentlyaskedquestions/f/LEDvsLCDtvs.htm
http://asia.cnet.com/led-vs-lcd-tv-which-is-better-update-62055838.htm

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Commonly Reported Vizio TV Problems

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vizio_logo_ratings_box_logoTechnology has no doubt come a long way over the years and continues to advance rapidly. Of course, it is far from perfect and there are a number of things that can go wrong with any given household appliance or gadget. There are some very impressive televisions on the market these days. Vizio, for example, offers an array of LCD, LED, and plasma models in all sizes. Any of these common Vizio TV problems may arise at any time throughout the life of the set.

Perhaps the most common complaint regarding Vizio TVs is the appearance of a blank black screen even when the set is switched on and the indicator light is glowing. The screen may still light up in some instances, but in either case the screen remains blank. This issue is usually corrected by replacing the power board, but there are several other things that could be the culprit, like the backlight converter, the T-con board, or even just a faulty screen itself. If a repair shop does not have all of the LCD TV parts that could possibly be causing the problem readily available, they may need to order them all in order to single out the guilty part, which can get rather pricey.

Faulty remotes are another common issue. This is one of the much easier and inexpensive Vizio TV problems to fix. Usually this is due to a bad IR sensor or a loose wire and the parts can generally be found online for less than 20 bucks. If the cause is unknown, just replacing the remote altogether is also fairly easy and of course less expensive than dealing with a problem with the TV itself.

Commonly reported Vizio TV problems also include sound-related issues. This may be a matter of faulty speakers or disconnected wires, which are both easily remedied. If it is an issue with the main unit, then it will be a little more difficult and expensive to fix.

There are many shops offering LCD TV repair services. Purchasing an extended warranty is usually advised to cover the cost of potential expensive repairs and replacements but you will need to rely on your judgment on whether the price of the extended warranty will truly be worth it (most of them are quite pricey).

Sources:
http://www.consumeraffairs.com/home_electronics/vizio.html
http://www.amazon.com/forum/vizio/Tx1D1GJG19EOP3Q

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The Best Repair Guide to Any LCD Flat Screen TV Brand!

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Learning to repair electronics like flat screen LCD televisions used to be just within the realm of classroom or workshop-type teaching which you needed to attend for weeks or months (or even years if you’re taking a college degree in electronics-related courses). However, with the emergence and dominance of the Internet as an avenue for exchange of information, it has also become apparent that online learning courses has become a major option when it comes to learning new things. Even technical courses like learning software development through online tutorials and guides to learning how to fix video game consoles to figuring out how to troubleshoot and repair LCD TVs and other flat screen monitors or displays are now being offered via Internet correspondences and avenues.

Take the case of Kent Liew’s increasingly becoming popular LCD TV Repair course which has been providing quality technical and practical information on how to fix LCD televisions through a membership platform. When you join the membership learning community, you get access to tons of information compiled in a database structure. If you are a beginner or a novice in troubleshooting electronics, you can start with his step-by-step instructional materials which teach all the basics of LCD TV technology. You will get familiarized with the fundamentals that you will need to become a bona fide flat screen display technician.

If you are already an intermediate to expert TV repairer, you will also find a lot of value in joining Kent Liew’s membership training as there is a lot of material there that you can use to improve or expand your repertoire because it maintains a huge database of schematics and diagrams for many different brands of flat screen televisions. The following are the brands that you should be able to find in its database: Samsung, Sony, Visio, Polaroid, Panasonic, Hyundai, Magnavox, LG, JVC and many other brands popular or otherwise, the membership should be able to supply you with all the technical information you need to fix all possible LCD TV problems. The $47 you need to pay for the membership should pay for itself quickly with all the access you are given to valuable technical data.

Whether you are in it as hobbyist DIY electronics repair enthusiast or already in it professionally, being a member of Kent Liew’s LCD TV repair guide and training membership is something that will help in your efforts to improve in your craft.

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How to Find a Burnt Resistor Value by Jestine Yong

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For those who are training to become an electronics repairer, here is another good material from Jestine Yong of the LCD Monitor Repair and Electronics Troubleshooting e-books that he created to teach those interested in learning how to repair electronics even with no formal education.

The said material is another e-book containing information on the secret to finding the resistor value of a burnt resistor.

A resistor is an electronic circuit component that is meant to resist the flow of electric current. It has two terminals that electric current needs to pass through. As it moves from one terminal to another, its voltage is reduced. Resistors are designed to do so to maintain a known current within a component of the circuit.

However, sometimes resistors overheat and burn when they fail to dissipate the high temperature caused by the electric current. When this happens, the color code on the resistor is destroyed and hence you are left unable to figure out how to get the resistor value which is important information if you intend to replace it to fix the device it is in.

The resistor value indicates the resistor’s resistance in ohms and is an important value to know. A working resistor’s value can be measured using an ohmmeter which may be function that modern digital multimeters are equipped with. However, if the resistor fails and is burned, you may not be able to obtain its value without the appropriate schematic diagrams. Now, since schematic diagrams do not fall freely from the sky and are usually quite expensive to get, you may find yourself stuck with the particular job you are working on.

Jestine Yong’s How to Find a Burnt Resistor Value will teach you a secret method to find out the value of a damaged and unrecognizable resistor so you will never have to turn down a repair request just because you cannot figure out a single number that will let you know which replacement to get.

Jestine Yong promises that the method he teaches will work on any electronic equipment. This should come in handy for those plasma and LCD TV repair jobs. He also swears that what he teaches will be easy to understand such that you do not even need to get the schematic diagram. It will be a step-by-step detailed instruction complemented by pictures and diagrams. You will not need no complicated equipment like oscilloscopes and other expensive testing equipment.

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