All posts by Jestine Yong

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  Completed Another Basic Electronics Repair Level 1 Course

  Completed today another Basic Electronics Repair Level 1 Course For 12 Participants. Below is a video and photos taken from this 3 day course: Likes(17)Dislikes(0)

  • Posted December 8, 2023
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  Replacing Open SMD And Shorted IGBT’s Restored This Welding Machine Back To Life

  A shop owner nearby brought this dead welding machine for repair and as he explained the fault I came to realize this Apex welding machine all have the same fault and I was almost sure that I...

  • Posted December 2, 2023
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  Saving Computer SMPS Part-6

              These TWO SMPS belonged to the hospital, where I worked. Both were brought in totally dead condition, but opened and cleaned by the IT maintenance staff, saving my time. Case (1)...

  • Posted December 2, 2023
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  Intermittent On/Off Problem Solved In YAMAHA RX-V485 Receiver Amplifier

  This set was brought to me by my school classmate with the complaint that it was intermittently going on/off. Though I had directed him to take it to another technician in town, due to overload of work...

  • Posted December 2, 2023
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  Completed The MicroElectronics Troubleshooting and Repair and Microsoldering Course

                Completed today another MicroElectronics Troubleshooting and Repair and Microsoldering Course for 3 participants. Below is a video and photos taken during the 3 day course:   Likes(17)Dislikes(0)

  • Posted November 29, 2023
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  SMD Mosfet Found Dislodged In LED TV Model 32LF561D

                This TV which visited me in December, 2020 about which I had already published an article, link of which is provided below, returned in July, 2023. I am not repeating...

  • Posted November 26, 2023
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  A Welding Machine Powers On But Does Not Weld Repaired. Model: INC-CO

              I have seen this kind of issues in this brand a lot. The technician tries to weld but for some reason it does not. Sometimes the output voltages are there but...

  • Posted November 26, 2023
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  A Drifting On A PS4 Slim Controller Repaired

                My nephew told me about PS4 slim controller that was drifting. Drifting means the character in the game is moving on its own even if you try to control it...

  • Posted November 26, 2023
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