All posts by Jestine Yong

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  Easy Plasma Tv Repair

  This Philip Plasma tv was brought to my home for repair from my church. The church use it to receive Sunday service from h/qr church through satellite service. It shut down to standby mode when the power ...

  • Posted November 27, 2021
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  Completed The Basic And Advanced Repair Course

  Just completed today the 6 days Basic and Advanced Electronics Troubleshooting Repair course for 7 participants. Below are the photos and videos taken during the 6 days course (22nd to 27th November 2021). For more information about...

  • Posted November 27, 2021
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  Should You Test Resistors OnBoard Or OffBoard?

  I often got technical questions from my training students and one of the most common questions was about whether to test or check resistors onboard or offboard. My answer to them was it depends. For your information,...

  • Posted November 20, 2021
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  Lead-Acid Battery Powered Table Lamp Modified To Use Lithium-ion Battery

                    This rechargeable table lamp my family use to light up kitchen whenever there’s power failure. It uses lead acid battery for power, which I usually change whenever battery...

  • Posted November 20, 2021
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  Vent Damper Repair (switch replacement)

              My replacement gas heating system included a vent damper that closes the flu when the gas is not burning to save energy; but it threw a boiler error after just 2...

  • Posted November 20, 2021
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  Completed The Higher Advanced Electronics Repair Course

  Just completed today the Higher Advanced Electronics Repair course (level 3) for one participant. He already attended the Advanced Electronics Repair course (Level 2) last year. For more information about the electronics repair courses, please click here....

  • Posted November 19, 2021
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  A Dead Lontor Rechargeable Water Standing Fan Power Supply Modified

              This 12V fan was brought to my work shop with complaint of not working. This fan uses water for cooling system. Picture below: I did check and found smps, mainboard bad,...

  • Posted November 10, 2021
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  Could Hear Relay Click Sound But No Continuity…..

                  I got a call from my brother saying that his welding machine keeps going into shut down and does not know the cause of it. He explained that it...

  • Posted November 10, 2021
  • 6