All posts by Jestine Yong

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  Resurrecting NATIONAL Two-In-One Model RX-FT500

              This National Panasonic 2-in-one was brought to me from a faraway place by a regular customer, requesting that it be restored to the best possible condition, because of the double cassette...

  • Posted December 9, 2023
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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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