10 amazing facts you might not know about television

Written by Irene Revallio

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Man's largest television set was unveiled inrepparttar Japanese city of Tsukuba and measured 24.3m by 45.7m [ 80ft by 150ft ]. It was used inrepparttar 142148 1985 Japanese International Exposition and displayed a series of specially created films containing varied artistic and cultural creations. The largest number of adverts featuring a companies president were made for Wendy's Hamburger restaurants inrepparttar 142149 United States and featured Dave Thomasrepparttar 142150 corporation creator. In all he has starred in 652 adverts withrepparttar 142151 shortest being five seconds andrepparttar 142152 longest being sixty seconds. These commercials have won thirty six major advertising awards and have made Dave as well known as his Food. Whilst viewing an episode ofrepparttar 142153 hit Japanese kids show Pokemon over seven hundred Japanese children were rushed to hospital with severe convulsions and trauma. This was caused by a ten second scene in whichrepparttar 142154 shows star Pikachu flashed his big red eyes torepparttar 142155 sound of a huge booming explosion. Inrepparttar 142156 Statesrepparttar 142157 largest section ofrepparttar 142158 Television audience is made up of pre-school children.On average their weekly viewing turns out to be inrepparttar 142159 area of 30.4 hours which means byrepparttar 142160 age of 17 they would have amassed about 15000 hours of television watching. Amazingly this adds up to a staggering two years of solid viewing.

Irene Revallio is the owner of find plasma TV which is a great source of information about Plasma Televisions For more information, go to: http://findplasmatv.com

Testing Flyback Transformer-How to test and when to replace it

Written by Jestine Yong

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a. High voltage shut down. b. Monitor will have ‘tic - tic’ sound. Sometimesrepparttar capacitor may measure O.K. but break down when under full operating voltage. c. Horizontal output transistor will blow in a few hours or days after you have replaced it. d. Sometimes it will cause intermittent "no display". e. Distorted display i.e.,repparttar 141800 display will go in and out. f. It will cause horizontal output transistor to become shorted and blowrepparttar 141801 power section.

How to check if a primary winding is good or bad in a Flyback Transformer? a) By using a flyback/LOPT tester, this instrument identifies faults in primary winding by doing a ‘ring’ test. b) It can testrepparttar 141802 winding even with only one shorted turned. c) This meter is handy and easy to use. d) Just simply connectrepparttar 141803 probe to primary winding. e) The readout is a clear ‘bar graph’ display which show you ifrepparttar 141804 flyback transformer primary winding is good or shorted. f) The LOPT Tester also can be used to checkrepparttar 141805 CRT YOKE coil, B+ coil and switch mode power transformer winding.

NOTE: Measuringrepparttar 141806 resistance winding of a flyback transformer, yoke coil, B+ coil and SMPS winding using a multimeter can MISLEAD a technician into believing that a shorted winding is good. This can waste his precious time and time is money.

How to diagnose ifrepparttar 141807 internal capacitor is open or shorted? By using a normal analog multimeter and a digital capacitance meter. A good capacitor haverepparttar 141808 range from 1.5 nanofarad to 3 nanofarad.* 1) First set your multimeter to X10K range. 2) Place your probe to anode and cold ground. 3) You must removerepparttar 141809 anode cap in order to get a precise reading. 4) Cold ground meansrepparttar 141810 monitor chassis ground. 5) Ifrepparttar 141811 needle ofrepparttar 141812 multimeter shows a low ohms reading, this meanrepparttar 141813 internal capacitor is shorted. 6) Ifrepparttar 141814 needle does not move at all, this doesn’t mean thatrepparttar 141815 capacitor is O.K. 7) You have to confirm this by using a digital capacitance meter which you can easily get one from local distributor. 8) Ifrepparttar 141816 reading fromrepparttar 141817 digital capacitance meter shows 2.7nf, this meanrepparttar 141818 capacitor is within range (O.K.). 9) And ifrepparttar 141819 reading showed 0.3nf, this meanrepparttar 141820 capacitor is open. 10) You have three options ifrepparttar 141821 capacitor is open or shorted. - Install a new flyback transformer or - Sendrepparttar 141822 flyback transformer for refurbishing or - Sendrepparttar 141823 monitor back to customers after spending many hours and much effort on it.

* However certain monitors may haverepparttar 141824 value of 4.5nf, 6nf and 7.2nf. Note: Sometimesrepparttar 141825 internal capacitor pin is connected to circuits (feedback) instead of ground. Tv rca flyback transformer circuits usually do not have a internal capacitor in it. If you have a flyback diagram and circuits which you can get it fromrepparttar 141826 net, that would be an advantage to easily understand how to check them.

Jestine Yong is a electronic repairer and a writer. For more electronic repair articles please visit his website at http://www.noahtec.com/electronic-repair-articles.htm

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