All posts by Jestine Yong

• Keeping Bad Electronic Components

  Whenever i repair electronic board and come across any bad electronic components i will keep it for future reference. What do i mean by keeping bad electronic components? I don’t keep just any bad electronic components in...

  • Posted October 18, 2008
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• Alreay Hit More than 10,000 Visitors

  If you look at the right side and below of this blog you could see the statistic showing how many people is online now reading this blog and the total visitors has come to my blog. I...

  • Posted October 18, 2008
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• Unstable Crystal Oscillator

  Do you know that the crystal oscillator use in the electronic circuit board could become unstable or have problem when it gets hot? It could also cause intermittent problem and shutdown the function of microprocessor in electronic...

  • Posted October 17, 2008
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• APC UPS Model PR550i Repaired

  The complaint for this APC UPS Model PR550i was it can’t charge and sometimes (intermittently) all the front panel LED’S lights up. A new battery was replaced with no improvement. Since the problem have some similarity with...

  • Posted October 16, 2008
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• Fixing Blue ESR Meter

  Here is an email that i got from one of my ERG member who has successfully built the Blue ESR Meter Kitset. He is a beginner and progress very fast and if you are a beginner too,...

  • Posted October 16, 2008
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• Capacitor Coding

  Can you still remember the post where i posted a questions on how to read the front number of a capacitor? You may click on this link to read the question again. In fact i found this...

  • Posted October 15, 2008
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• Recognize All The Different Transistors

  While searching for a data sheet, i came across a website that sell electronic components and it has lots of photos for many different types of transistors. If you are new in this electronic repair field, then...

  • Posted October 15, 2008
  • 0
• Repaired BenQ FP93V 19″ LCD Monitor

  The complaint of this BenQ FP93V 19″ LCD Monitor with P/N number 9JL1J72-VWM was no power. As usual  have to check primary side first  and found that four components have problem. It was a 2 ampere main...

  • Posted October 14, 2008
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