• Q-TEC 500W P/C PSU repair
    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
    • 32
  • Water Level Controller BTC L500 Repaired/
    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
    • 32
  • Why AC instead of DC and why 50/60 Hz?
    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
    • 24
  • External ADATA HDD repair
    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
    • 17
  • tl494ic
    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, http://www.jestineyong.com/atx-psu-modified-into-a-car-battery-charger-part-1/ http://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
    • 22
  • Breadboard
    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
    • 6
  • CRT TV RESTORER
    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
    • 16
  • philips cassette repair
    Philips AZ1005 CD Radio Cassette Recorder

                    Recently my youngest sister asked me to look at a Philips Portable CD Radio Cassette Recorder Player of her’s. A Portable Philips AZ1005. Because she and her Boyfriend were moving...

    • Posted April 18, 2016
    • 23