All posts by Jestine Yong

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  Standby Problem In CRT TV Repaired

                My customer complaint to me that his Sharp CRT TV does not have display and I found that the standby light was red color. I have even tried to press...

  • Posted December 3, 2021
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  Completed Another Basic Electronics Repair Course

              Just completed today another Basic Electronics Repair course (Level 1) for 8 participants. Four of them will continue to proceed to take Advanced (Level 2) and Higher Advanced Electronics Repair course...

  • Posted December 3, 2021
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  Multiple DC Voltage Testing Points of Mainboard

  If you are repairing many same model of mainboard, there are plenty of ways to troubleshoot it. One of the ways is to power On the device and measure the DC voltages on various points of the...

  • Posted November 27, 2021
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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
  • 6
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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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