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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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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LCD TV Troubleshooting: 4 Quick Tips

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Some basic LCD TV troubleshooting guide for HDMI-related problems

If your LCD TV is not responding when you turn it on, one basic thing you can do is switch it off properly, wait 10 seconds, then pull the TV plug from the power socket. After 1 minute, plug it back in and switch the TV back on. Hopefully, by some miracle, your telly is working again. If not, the next possible root cause of problems that you can look into are those that are related to the High-Definition Multimedia Interface (HDMI) connection.

HDMI is the best way to get high definition video these days, but it is so good that the content providers were worried their stuff would end up out on the internet, easy to copy and distribute. So they created this copy protection protocol, referred to as High Density Copy Protection (HDCP), which is like an electronic handshake system that validates the recipient of the digital signal. If the source recognizes the recipient display devices through HDCP, then video data will be sent. The problem, however, is when the HDCP process gets corrupted somehow. This will certainly will lead to bad or no video signals. This problem, although more prevalent in the earlier years of its life, can cause problems that may easily be fixed.

The following are some tips on how to troubleshoot such problems and the simple measures that you can do to correct them without sending the unit for professional help.
Continue reading “LCD TV Troubleshooting: 4 Quick Tips” »

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