All posts by Jestine Yong

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  How To Fix Zika Welding Machine

              A friend who is also a repair technician asked me about a welding machine that does not weld. We started chatting on line with camera on trying to help him get...

  • Posted December 16, 2023
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  Completed The Advanced Electronics Repair Level 2 Course

  Completed today another Advanced Electronics Repair Level 2 Course for 6 participants. This class was specially booked by their company just for the staff only. Below is a video and photos taken during the course: Likes(20)Dislikes(0)

  • Posted December 15, 2023
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  Is DENON AVR Model X-500 Prone To Fungus Attacks And Rusting?

  Those of you who have read my previous articles on servicing same model might know the reason for my question. For those who have not, here are the links, Case 1, Case 2 and Case 3: Case...

  • Posted December 9, 2023
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  A Toaster Oven With One Of A Heating Element Not Heating Up Replaced

              A manager of a German organization for physically and mentality challenged people called me today about a toaster oven. He said that one of the heating elements on top is not...

  • Posted December 9, 2023
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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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