All posts by Jestine Yong

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  HP LaserJet 3030 – paper jammed

                Today I got a call from a company and they have a HP LaserJet 3030 MFP who will not print and all the time eat the paper. I went to the...

  • Posted October 5, 2015
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  Completed One to One Coaching In Electronics Repair

                Just completed today a one to one coaching for a participant in the Basic Electronics Troubleshooting and Repairing Course. If you want to know more about the electronics repair training...

  • Posted October 2, 2015
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  Tektronix 2440 Oscilloscope Repaired- Part 3

              Here is the part 2 article: https://www.jestineyong.com/tektronix-2440-oscilloscope-repaired-part-2/ Today I started with Calibrating the 500MS/s Tektronix 2440 Memory Oscilloscope. Something that was easier then I first anticipated. Mainly because it is a pleasure...

  • Posted September 30, 2015
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  Tektronix 2440 Oscilloscope Repaired- Part 2

              After my last article on a Tektronix 2440 Oscilloscope Repair was published: https://www.jestineyong.com/tektronix-2440-oscilloscope-repair/ That had a Big Short Circuiting (Low Voltage) Power Supply that blew up the Wall Outlet Main Power...

  • Posted September 30, 2015
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  KONIG PA 10000 (2 x 500Watt) amplifier, no output in one channel repaired

                This amplifier was given to me for repair after an unsuccessful repair intervention of another technician, who unfortunately left permanent traces of vandalism in its PCB trying to repair it...

  • Posted September 28, 2015
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  No Power In Philips CRT TV Repaired

                    The complaint of this 21″ Philips CRT TV was no power. The first thing to do is to remove the cover and check the circuit board especially the...

  • Posted September 28, 2015
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  New E-book- LG Plasma TV’s Case History Volume 1 By Damon

                Mr Damon Morrow from USA who is a specialist in TV repairs has just launched his 11th Ebook on “LG Plasma TVs Case Histories Volume 1″.  If you are repairing...

  • Posted September 26, 2015
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  Blomberg 19” LCD screen TV/ Monitor with intermittent shut downs, repaired

                  A friend of mine who owns this TV set asked me to take a look on it as the set was shutting down its function while being in normal...

  • Posted September 26, 2015
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