All posts by Jestine Yong

  • Harman/Kardon Bluray player DTS set repair
    Harman/Kardon Bluray player DTS set repair

                          Yesterday my nephew brought his secondhand recently bought Harman/Kardon HS 350 BluRay player Digital Theater Surround Sound set that was completely dead. He asked if it...

    • Posted January 16, 2019
    • 21
  • No Display In TV Due To EEprom IC Fault
    No Display In TV Due To EEprom IC Fault

                          This Haier TV came in with the complaint of no sound but have OSD menu. When the TV antenna was connected the picture appeared for a...

    • Posted January 16, 2019
    • 7
  • How to repair Samsung LED TV
    Samsung Smart TV Powering On/Off

                          One of my customers call me on the phone and told me that his 46 Inch Samsung Smart TV was cycling power on and off every...

    • Posted January 11, 2019
    • 11
  • ac voltage stabilizer repair
    Electronics AC Voltage Stabilizer Repaired

                      I received this SUN Electronic AC voltage stabilizer with no sign of life. I opened the machine and start to test semiconductors first : I checked transistor AO1015...

    • Posted January 11, 2019
    • 22
  • kenwood oscilloscope repair
    Important Maintenance on a Kenwood CS-5130 40MHzOscilloscope with Read-out

                        Preventing having faulty equipment is a very important part of a good engineer’s life, as is the final repair of any device. So maintenance plays an important...

    • Posted January 9, 2019
    • 14
  • philips radio repair
    Bad Capacitor Found In Philips Radio DL167/40

                      This Radio belongs to my School Teacher, who is in his 90+, whom I meet often, during Alumni Association activities and other occasions. Very lovely teacher, who is...

    • Posted January 9, 2019
    • 10
  • battery pack repair
    New Battery After 2 Cycles Already Defect!

                        In previous repairs I wrote about successful fixing old laptop battery packs. In this article I write about a new sort of battery pack that turns into...

    • Posted January 5, 2019
    • 21
  • smart tweezers
    Several Bad Capacitors Found In SMPS

                        This work was once again in the Hospital, where the computer SMPS fails quite often. This was dead when brought. First thing, as usual, is always a...

    • Posted January 5, 2019
    • 11