Buying a Computer Mic

A Computer Mic increases the capabilities of personal computers. They increase the user's ability to communicate and enable the user greater effectiveness in terms of accomplishing work-related goals. For example, a computer mic allows the user to talk instead of type. If the user has a speech recognition program installed, that program will translate his spoken words into typed words without him needing to use the keyboard. This is a huge advantage for individuals that get easily tired when typing, or who work long hours involving typing skills, such as data entry.

There are other advantages to installing a computer microphone. Voice over Internet Protocol technology, for example, allows free instant communication almost anywhere in the world to anyone with an Internet connection, a pair of speakers and a microphone. Skype is the program that launched the VoIP revolution.

Microphones for computers are abundant, with a variety of brands available on the market. Comparison shopping quickly reveals that when it comes to these devices, a higher price does not always equal a higher quality. There are some decent quality ones which sell for around five to ten dollars. Some are ridiculously overpriced. Some are seriously underpriced, which is a great deal for you.

The above notwithstanding, higher priced devices do tend to showcase higher quality sound transmission on average. This is especially true for quality brand names. For instance, to take an example from headphones, would you expect Bose to make poor-sounding headphones? Of course not. The really high quality have noise canceling filters and integrated circuits, which help transmit a quality signal and ensures a good connection with whomever one is speaking to.

There are several different types of microphones within the higher quality brands.

Gaming: As the name suggests, these microphones are used for computer-based video games. These microphones usually come with a pair of headphones so you both listen and speak at the same time.

Condenser: These microphones are the best in the business. Condenser microphones pick up a higher range of frequencies and produce a much better sound quality than other types of microphones. If interfaced with a computer via a USB connection, this is the perfect mike for VoIP or any other service you could want.

USB: A USB microphone is tailor-made to be a computer mic. All you have to do is plug it in to the USB port on your computer and you are good to go.

Interested in learning more? Read more detailed writings about Computer Mic right now. Visit our site for lots of great Computer Mic Information.

Samsung 153V LCD Monitor Power Supply Repair Tips

Troubleshooting Samsung 153V LCD power supply is just like troubleshooting those crt type. This monitor came in with no power symptom. If you are first time repairing this type of power supply, I recommend you to first remove the switch mode power transformer. Then test every single component in the primary section, before you continue to check the secondary section. You have to be good in testing basic electronic components in order to detect the fault.

You can always browse through my website just in case you do not know how to test basic electronic components. If you do not know the right way to check, you might miss out a bad component and this will lead you not able to solve the problem. After carefully checking all the components in the power supply section, I found the filter capacitor do not have any reading using digital capacitance meter (open) , the two round type fuse also open circuit, 1N4744 15 Volt zener diode short circuit and lastly the power ic TOP247F blown! Testing the switch mode power supply primary winding with a dick smith flyback tester shown green bar which indicated good winding.

What we left here were the secondary diode and filter capacitor. Upon checking them with analog meter and esr meter, found all of them to be good condition. Other area like main board and inverter board also looks okay (Power failure rarely affect these two circuit). Now we have confirmed that only five components found to be faulty. One by one the components were replaced (except one fuse) and just before you switch on the power supply, make sure you connect a 100 watt light bulb across the live ac line-refer to the photo at my website. Once it is done you can then proceed to switch on the LCD monitor to look at the brightness of the bulb.

If it very bright, this suggests that there are still short circuit somewhere in the power section. If it dim or totally goes off, you can now place your red probe to the secondary side to check if any dc present at their respective line. If there are DC voltages present at the output, you can switch off the power, discharge the filter capacitor (for safety purposes), remove the light bulb and connect back the new fuse to its original location.

You are now hundred percent sure that the LCD power supply won't blow once you switch it on. By the way the filter capacitor is rated at 105 Celsius and you cannot replace it with the 85 Celsius type otherwise it may open up again after using for couple of weeks or months. The ventilation in LCD monitor is not as good as the cathode ray tube monitor, because the power supply is fully covered by a large aluminum plate and it can get hot pretty fast. Conclusion, whether you are repairing Samsung 153V LCD power supply or other brand of LCD monitor, the procedure is the same. Who knows the power problem in this monitor is a common fault and in the future you can tackle this brand of power supply in the shortest time. To measure electronic components is not that difficult, but to get the original parts like the power ic will consume you lots of time.

Jestine Yong is a electronic repairer and a writer, if you want more LCD monitor electronic repair information, please visit his electronic repair website now!