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All posts by Jestine Yong

  • capacitorleakage
    Capacitor Leak On The Board?

    Could you tell me if this a capacitor leak on the board? Thank you   Answer: Those are not electrolyte (leakage) from the electrolytic capacitors. They are just some sort of glue/epoxy/hard silicone to secure the components...

    • Posted September 18, 2013
    • 7
  • Concern About Technical Information

    Thank you for your articles and information. My concern is about technical information.  It’s good to have test equipment and troubleshooting skills.  But you must have a GOOD repair manual with schematics showing voltages and other information.  Also, must have parts list. ...

    • Posted September 17, 2013
    • 0
  • weldingmachinerepair
    A dead welding machine repaired. Model: super weld-200

    A very serious fault was causing this machine not to work. The moment I plugged it into the electrical power socket, it caused an electrical short in my shop.   The customer, who brought this machine to...

    • Posted September 16, 2013
    • 6
  • blueringtester
    Blue Ring Tester Result

    Today I am going to share one of my troubleshooting experiences with Blue Ring Tester which I have bought from Mr. Jestine Yong.  There was a problem with one SMPS which was dead and not showing output...

    • Posted September 14, 2013
    • 43
  • Shut Down Trouble of COMPAQ 8710w Repaired

    The Notebook was shutting down without any order at about 5 minutes from the moment it was turned on; the owner was really surprised with this abnormal behavior.   When the COMPAQ was disarmed, both radiators (the...

    • Posted September 14, 2013
    • 36
  • Completed Another Laptop Repair Course

          Just completed a 3 days Laptop Repair course for a participant from Johor. He works as a service engineer for a printing company in Singapore. By right it should be attended by 2 participants...

    • Posted September 13, 2013
    • 4
  • microwaveovenrepairing
    A Dead Universal Microwave Oven Repaired. Model: Uni. 2040

    The microwave oven was brought to my shop for repair and the complaint was it does not heat. While the customer waits, I powered up the machine and tried to heat up some water in a glass,...

    • Posted September 12, 2013
    • 6
  • Replacement Part For K10A60D

    Customer brought me a 32″ Sony’ LCD TV for repair. The problem was no power. I checked the power board and found main fuse and FET transistor were bad. The part number of the FET transistor was...

    • Posted September 12, 2013
    • 8
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