All posts by Jestine Yong

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  Easy Ways To Troubleshoot and Repair Power Supplies

                    Hi! The focus in this article is on a HLT48-12-4000 power supply. This power supply is a PSU from a CCTV NVR system from some nearby company. This...

  • Posted July 25, 2018
  • 15
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  Servicing Intex Multimedia Speaker

                      This set was brought to me with the complaint that the woofer was not working properly, and one speaker output was also not working. In order to...

  • Posted July 25, 2018
  • 4
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  Completed The Advanced Electronics Repair Course

                      Just completed another Advanced Electronics Repair course for 9 participants. There were foreign students in this class (from Maldives, India and Indonesia). Tomorrow, four of the students...

  • Posted July 25, 2018
  • 6
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  How To Fix Microwave Oven With Overheating Problem

                      A computer technician brought this to my shop and explained that this microwave oven gets over heated. I had to ask, what do you mean by overheating?...

  • Posted July 20, 2018
  • 16
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  How To Service DP 30 LED Emergency Lamp

                    This emergency light was brought to me in a dead condition. On opening the unit, I observed that the battery connections were corroded; a few components on the...

  • Posted July 20, 2018
  • 11
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  Basic Electronics Troubleshooting And Repair Course

                        Just completed another Basic Electronics  Troubleshooting and Repairing course for 8 participants. There were two foreign students, one participant was from Indonesia and the other was...

  • Posted July 20, 2018
  • 14
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  What An Ingenius Way To Solve A Power Supply With Burnt Components

                      This Urban Disco active speaker came in with the complaint of no power. The first thing to do is to open up the cover and check if...

  • Posted July 16, 2018
  • 6
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  Peugeot 206 Incorrect Gauges Repair

                        Incorrect set gauges is a common problem on this type of car, the root of the problem could be some sort of voltage drop in the...

  • Posted July 16, 2018
  • 4