All posts by Jestine Yong

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  Test pins from PC power supply

                  Today I faced with a “strange” problem, where I had to make some measuring on a car ECU motherboard. There were some pins very close to each other and...

  • Posted May 2, 2016
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  Q-TEC 500W P/C PSU repair

                    My friend George bought recently this (used) PSU shown below, at a very cheap price, in order for him to use it as a spare PSU for his...

  • Posted April 28, 2016
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  Water Level Controller BTC L500 Repaired/

                    One of my friends that have a garden brought me this water level controller and asked me why this water controller was not functioning?   But what is...

  • Posted April 28, 2016
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  Why AC instead of DC and why 50/60 Hz?

                  If you ever asked these questions to yourself, welcome to the club. These two questions are amongst the most frequently asked questions by Electrical/Electronic engineering students. And they are...

  • Posted April 25, 2016
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  External ADATA HDD Repair

                    This external ADATA HDD Model Nobility NH03 was brought to me and the complaint was never recognized in any PC. First thing done was to check on the...

  • Posted April 25, 2016
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  ATX PSU Modified Into a Car Battery Charger-Part 3

                  For those readers of my previous article, about that modification shown in two parts here below, https://www.jestineyong.com/atx-psu-modified-into-a-car-battery-charger-part-1/ https://www.jestineyong.com/atx-psu-modified-into-a-car-battery-charger-part-2/ especially for those who asked me specific information in order for...

  • Posted April 22, 2016
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  6 Tips to Ensure Great PCB Designs

                    Electronics is not just a vast industry, it is also a hobby for many students and engineers. You can find a variety of blogs and forums online, which...

  • Posted April 22, 2016
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  Restoration of a Samsung CRT TV by Rejuvenating CRT

                    I got a Samsung CRT TV Model CB20E4V2X with the complaint that the picture diminished day by day and only sound remained, after which it became dead completely....

  • Posted April 18, 2016
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