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All posts by Jestine Yong

  • thermal imager detects connector heat
    Roborock H6 Handheld Vacuum Cleaner Burning Hot

              This handheld vacuum cleaner is our personal one, so despite regular reminders (that’s what we’ll call it…) from my wife, it was some time before it reached the top of the list....

    • Posted August 28, 2024
    • 13
  • Saving Computer SMPS REPAIR
    Saving Computer SMPS Part-10

    I have time and again mentioned that I love doing service on SMPS after reading Jestine Yong’s Book on SMPS service. Here are yet other cases, which provide an insight as to how simply we can get...

    • Posted August 28, 2024
    • 10
  • UPS Repair
    A UPS Device Powers On But Does Not Hold Charge Repaired

                A guy and a close friend of mine brought this UPS device for repair and explained that this device powers on fine but it does not hold charge. Since the device...

    • Posted August 28, 2024
    • 19
  • Philips radio repair
    Found Battery Acid Spewed All Around The Inside Of PHILIPS Radio RL384/40

                  This radio belonged to one of my colleagues in the hospital, who was getting retired from service. It was her husband’s, and was lying unused after his death and she...

    • Posted August 28, 2024
    • 10
  • electronics repair class for G7 Aerospace
    Completed Another Higher Advanced Electronics Repair level 3 Class

    Completed today another Higher Advanced Electronics Repair Level 3 class for 6 participants. All of them already attended the level 2 course before. Below are the photos taken during the 3 days course: Likes(18)Dislikes(0)

    • Posted August 23, 2024
    • 10
  • Emergency Light Modified From Fluorescent Lamp To LED – BPL MODEL RL-F60
    Emergency Light Modified From Fluorescent Lamp To LED – BPL MODEL RL-F60

    This is a double tube type Emergency Lantern. This belongs to my classmate, who is no more. His family brought it to me saying that it was not working. The battery was found down. The sticker indicated...

    • Posted August 17, 2024
    • 16
  • Homemade Isolation Transformer By Mark James From USA
    Homemade Isolation Transformer

              I have always wanted a second isolation transformer. I had some spare parts lying around and an old Atx power supply case. Using these parts I built my own. This one can...

    • Posted August 17, 2024
    • 15
  • LG Home Theater As No Audio

              A new customer came to my workshop with this home theater with complaint of playing but no sound. So i did the usual and probe through the device, nothing to suspect. So...

    • Posted August 17, 2024
    • 21
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