All posts by Jestine Yong

• Genuine Samsung Cellphone Charger Repaired

  Specification Input :100-240 v AC   50-60Hz   0.15A Output:  4.75  v DC  0.4 A Made  in china SMPS PRINCIPLES CHARGER CIRCUIT The circuit of this charger is designed  to run on two ac input voltages i.e the 100V...

  • Posted October 16, 2012
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• Video: How To Clean HP Printer Cartridges

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  • Posted October 15, 2012
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  Compilation of All Semiconductor Datasheet Websites

  Sometimes it is hard to locate from the internet the part number datasheet of a particular component. The best way is to visit the semiconductor website and search from the website. The website created by Bertrand Gros...

  • Posted October 13, 2012
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  Video- Nick Holonyak, Inventor of the LED

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  • Posted October 11, 2012
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• Electronics Repair Questions/Answers and Testimonials-Part 36

    Hi Jestine  Just thought I would email to let you know how much I enjoy your Monthly newsletters I find them interesting and full of practical solutions Just wish I could attended one of your training...

  • Posted October 9, 2012
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• October 2012 Repair Newsletter

  If you are a first time visitor to this blog and wish to read the October 2012 repair newsletter about “How To Solve No power Problem In Fuji Xerox LaserJet Printer" then you can click HERE to subscribe to my monthly repair newsletter and you...

  • Posted October 7, 2012
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• Modification Of Circuit Boards

  Sometimes when we do the repair work we will encounter problems like burnt components in circuit board, missing parts or we just won't able to find out the fault. The only way to solve this kind of...

  • Posted October 6, 2012
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• Starting Cost Of A Repair Workshop

  Back in 1996 my partner and I took out about RM2000 (USD667.00) to set up the small repair center (approx about 200 square feet). I used the money to buy fax machine, print invoices and D/O, rental,...

  • Posted October 4, 2012
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