All posts by Jestine Yong

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  4 tube Fluorescent desktop lamp with electronic ballast repair

                Lamp refused to start, no flicker. Opened it and found electronic ballast with the following markings: Landlite Electronic Ballast for Fluorescent Lamp EBCF-127-120V-LPF 120/60Hz 0.38A PL 27W Lamp Output Voltage:...

  • Posted March 22, 2016
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  How To Measure Current With Your Scope

                  1. Your scope as a voltmeter Your oscilloscope is a voltmeter but also a special type of voltmeter. It is a voltmeter that not only allows you to measure...

  • Posted March 17, 2016
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  Loud Sparking Sound In CRT TV Solved

                    The complaint of this Sharp CRT TV was very loud sparking sound inside the TV. For your information, loud sparking sound usually is due to leakage in the...

  • Posted March 17, 2016
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  Not Common To See Duoyi DY294 Tester Taken Apart And Repair-Part 1

                    As a very interested Electronics repair engineer I love using new Test Gadgets and Digital Meters and new Testers in my Electronics Hobby at home. After all they...

  • Posted March 10, 2016
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  Not Common To See Duoyi DY294 Tester Taken Apart And Repair-Part 2

                  Click HERE for part 1. After I previously discovered that Q1 C9013 wasn’t working and gave unexpected results on my M12864 Tester I was almost certain that it must...

  • Posted March 10, 2016
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  Programming languages and software for 8051 microcontroller

                    In this article I will explain to you the programming languages used in microcontroller, software used to simulate the circuit and burner used to write the code in...

  • Posted March 10, 2016
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  Useful Bulb Testing Method To Solve Household Instant Water Shower Heater

              A friend  has asked me to analyse this 3.6KW Joven water heater for him which cannot turn on. Water heater is a common household electrical applicance but surprisingly not much informations...

  • Posted March 7, 2016
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  Introduction to 8051 Microcontroller

                With the increase of technology, we are familiar with computer, mobiles and other technology products that are playing important roles in our daily life. All these technology products have some...

  • Posted March 7, 2016
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