rf circuits
rf circuits
The Top 10 TV real problems and how to prevent!
The Top 10 TV real problems
How to Prevent Them!
The modern television is a very complicated piece of sophisticated equipment. In fact, it can be considered as a dedicated computer, programmed with the task of providing the best possible video and audio signals for your entertainment.
In this spirit, this report will tell you that those of us in the service industry has seen in years that real faults are concerned. I can tell you that in most cases, a large number of problems with electronic equipment is actually created by the owners of units, and most easily avoidable. Here are the top 10 list:
Problem # 10: Client attempts to repair
I see this a bit. I am looking for someone to save money by trying to avoid calling a technician, but the TV service is very dangerous work, and should not be attempted by a layman. And let me make sure that This statement comes not because of any interest in repairing electronics. A television may contain a lethal charge for a period of several months, and if you know what you're doing, you could be dead. Even if you only want to change a blown fuse, be sure not to open for a reason. By replacing and try to start the device again, can cause more damage to the fuse prevented. It will always be more expensive to diagnose and repair.
How Avoid:
It is always best to go ahead and take the unit to repair center to create problems. In this way, before he gets there, the less the repair will be costly.
Problem No. 9: Old School beat the Firm
Everyone, I'll say it now: Please do not do that. You can damage electronic components within the set. Sure I can get everyone to work … for a while. But that unity is to say is that I have a small problem, not much. Once this technique does not work, you can be sure that they now have a big problem, and be much more expensive to repair.
How to avoid:
Simply take the inside game or collected for repair. Do not expect the problem is growing (es) or damage real. If you like the game and want to keep for a few years, still the best.
Problem # 8: Animals and Varmints
If you have dogs or cats, in many cases, they like to live behind the TV, because it is hot and makes it a nice place to take a nap. Unfortunately, pets are used to mark their territory by urinating in the game, or chewing the wires, which could cause a costly problem.
How Avoid:
Be sure to keep your pets outside the backstage area. If you have a problem with mice or cockroaches, do everything possible to reduce to a minimum. Mice chewed the wires and elements of value in everything, including IC chips and discrete parts. Both can cause a short circuit inside just dragged on of the unit. I found enough to know they can cause considerable damage.
Item # 7: Mode Militaria
This is similar to # 10 but with a difference. A client tries to resolve the problem by accessing the service mode and change the factory settings. All I can say the matter is that if you're looking to cause a problem with modern electronics and confused person in the service at the same time, the number 1 way to do it.
How to avoid:
Unless they are known here, do not. You could do irreparable harm to everyone. This can occur through adjustment of something so far out of reach as the TV goes off, and can not be restarted.
Problem # 6: bad management / Transportation inadequate
Rough handling of product is something that those of us in the company sees all the time and works the range of objects projected on the screen, scoring all around your face down on the back of a truck or van.
How to avoid:
Always move your TV up and seize property. Take it easy, when you move, and when pending. And if you have a flat screen TV, please handle with care of the screens are very easily damaged. In the projection television, the liquid refrigerant in the exhaust pipes and can cause much damage, so if you please, take precautions when you move.
Problem # 5: Candle wax on TV
I've been seeing a lot of it. A client will use its expensive TV set as the owner of a candle and drip wax on the whole.
How to avoid:
It is obvious that maintaining things like removing the equipment.
Problem # 4: liquid spills
This happens more than you think. Above all it is an accident, but it is sad. Over the years I've seen coffee, tea, and everything else.
How to avoid:
Do not install anything liquid on your TV. And if you have children make sure not pour Kool-Aid in the back, just to see what happened. (Yes, I've seen.) Lo All I have seen more fun is the man who sprayed WD-40 into a recording unit for cleaning. As you may suppose, that has ruined everything.
Trouble # 3: Speaker Connections
A client will try to hang on their new spokesperson, and in the process damage the circuit noise in the set. This is usually caused by a short and son, or trying to configure a system that TV is not designed to handle.
How Avoid:
Always read the instructions supplied with the speakers and make sure you know how to connect external speakers to the TV. And NEVER try to hear something while the screen is on. Always turn and check your work before starting again.
Item # 2: Surge
During the season of thunder and television services to see many of them, so much so that some stores actually make a living. Fortunately, this is a difficult decision avoid and there are two ways to do it.
How to avoid:
The first and best way is to simply view the time in the morning before leaving for work and check the forecast for the day. So if you have any storm on the way, simply disconnect. Including cable entry. If you is at home most of the day outside Ween same habit of watching TV while away from the rays. No show is really very important. Just close and time off until the storm has passed.
The second way is to buy a real system Surge Protector, as Panamax or Tripp Lite. These come with an unconditional guarantee and if you watch a program during a storm, at least if you hit play and other equipment for a raise, you're protected. Checkout our report entitled "Keeping its expensive Big Screen TV life "for more tips and information.
Problem # 1: RF Connectors
I saw several of these hands than any other problem below. A client try moving the TV and forget to unplug the cable and damage to the RF input connector. The repair is Cheap, but sometimes the tuner is damaged and may be a more costly repair.
How to avoid:
Just be sure to disconnect Always full of TV cable connection. But the best way to prevent this from happening is to use a boost to the cable input connector. Thus, if the game moves the RF input will not be damaged. You can find most of these retail stores.
If you take these simple precautions you can take the liquidation of TV repair shop or worse, in the trash heap. Thank you for submitting this report and have a great day!
About the Author
The Author is a Master Electronics Technician with over 20 years of experience.
Need TV Repair? Get a FREE Service Call! For details go to http://freetvservicecall.wordpress.com/
MICA capacitor or ceramic capacitor is good is good?
types of mica capacitors is good in the LC tank circuit or ceramic capacitors well circuits.if RF mica is a good way to read its value?
I think the mica, silver is the best. You want to use the components most High Q can be found in a tank circuit. Http: / / tells how to read www.tpub.com/neets/book2/3g.htm mica caps. If you do not have a copy Handbook ARRL you may want to get one. Go to the library and see first. Http: / / www.arrl.org/catalog/?category=&words=arrl+ Handbook & SearchWords.x = 0 & SearchWords.y = 0
Measuring RF in Circuits
