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All posts by Jestine Yong

  • How To Identify Missing/Hard To See IC Part Number

    I’ve got an email about an LCD inverter board that the inverter IC part number was missing/hard to see. Sometimes the part number just faded away (became blur) after a number of years used. I suggested to...

    • Posted September 11, 2014
    • 45
  • Tweezers Meter By Global Specialties

                      I just got an email from Global Specialties about two new tweezers that they have just launched. There are two models: PRO-57 and LCR-58. The PRO-57 features are:...

    • Posted September 9, 2014
    • 4
  • pc cd drive repairing
    An external DVD Combo repaired

                      An external CD/DVD Combo Unit with the brand of LG Model GE20LU11 was brought to me because it was not reading/burning any CD/DVD. Besides, a funny noise could...

    • Posted September 7, 2014
    • 6
  • dvd repairing
    CRYSTAL DVD Player Brought Back To Life

                    My friend calls me to come to his house yesterday. He doesn’t explain why, I just came as a friend. I arrived at his house and asked him what...

    • Posted September 5, 2014
    • 43
  • varactor checkings
    About Varactor Diodes

                    They are small, very small and often embedded into Integrated Circuits. Varactor Diodes, also called Varicaps, are used in many of today’s electronic circuits, mainly in RF tuners, oscillators...

    • Posted September 2, 2014
    • 32
  • windows not loading repair
    No Windows Loading On PC Solved

                        Early in the morning a co-worker asked for my presence and when I arrived to his Department (Economy) the complaint was his PC was not loading the...

    • Posted August 30, 2014
    • 8
  • kursus baikpulih
    Completed Another Advanced Repair Course

                    Just completed another Advanced Electronics Repair course today. For more information about the repair course you may click on THIS link. Here are the photos taken during the 3...

    • Posted August 29, 2014
    • 7
  • PWM IC Testing Method

                  Today I want to share about External Voltage Test Method for TL494 PWM IC.  I found this method in Mr Jestine Yong’s Switch Mode Power Supply E-Book. I have applied...

    • Posted August 26, 2014
    • 18
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