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All posts by Jestine Yong

  • Completed Another Basic Electronics Repair Course

                    Just completed another Basic Electronics Repair course for 6 participants. Here are the photos taken during the 3 days course: Likes(12)Dislikes(0)

    • Posted March 12, 2014
    • 7
  • signalgenerators
    Poor Man’s Signal Generator

                  One of my nephews dropped this 26” Sanyo LCD TV and broke the screen. So I decided to make a signal generator out of it! I disconnected the screen and...

    • Posted March 10, 2014
    • 0
  • bad-ic
    Is Scanner HP 4070 Irrepairable due to Kamikaze Transistor?

                  This story started when I got this HP Scanner and was told that it was rejected by HP repair center. The complaint was that it can’t be powered up. After...

    • Posted March 10, 2014
    • 2
  • pc-repairings
    PC Vibration Solved

                Early in the morning a co-worker came to me because her PC was having too much vibration and she could not work with this situation. Her PC was an ASUS P5LD2-VM/S....

    • Posted March 9, 2014
    • 0
  • resistor values
    What is the resistor value?

                  From the photo you have seen, try  guess what will be this 5 color bands resistor value? Please leave the answer in the comment section below-thanks. Likes(17)Dislikes(2)

    • Posted March 7, 2014
    • 56
  • laptop-repairing
    Fujitsu Laptop Repaired

                A co-worker brought to me his Laptop FUJITSU LIFEBOOK Model: V1020 because when he turned-on the equipment, it was shutting-down some minutes later. First thing done was to check on the external...

    • Posted March 6, 2014
    • 3
  • Reducing The Chances of Having Dry Joints Again In Circuit Board

    Sometimes after applying fresh solder on a dry joint in a circuit board, the joint could break again most probably due to the type of solder we are using and few more factors like high temperature environment...

    • Posted March 6, 2014
    • 8
  • amplifierrepairing
    A surround amplifier with no sound output repaired. Model Vtrek AV-3100

                    I got a call from the principle of the Lutheran school in my area to go and check the amplifierin their school theater. When I got there, and powered...

    • Posted March 5, 2014
    • 5
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