Electronic Repair

• What Might Be The Cause Of Transistor Heating?

  From experience I could only think of six reasons why a transistor could get...

  • Posted May 27, 2013
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  Repairing LED FloodLight

  Last week my friend sent to me couple units of LED floodlight for repair....

  • Posted May 21, 2013
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• Bad Varistor

  Don’t be mistaken that a Varistor is a Ceramic Capacitor. From the board location...

  • Posted May 21, 2013
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• Equivalent Part Number For PC817 Optoisolator IC

  Optoisolator IC with the part number of PC817 can be easily found in many...

  • Posted May 10, 2013
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• Robust Power Supplies

  Some design of switch mode power supplies are so robust. They used good components...

  • Posted May 9, 2013
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  Cleaning The Circuit Board First

  One of my procedures before I started to troubleshoot circuit board is to make...

  • Posted May 8, 2013
  • 8
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  Observe The Electrolytic Capacitor Carefully

  Usually before I started to repair any electronics equipment I would usually scan through...

  • Posted May 3, 2013
  • 4
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  Wire Wound Resistor Specification

  Wire wound resistors are different from the carbon film and the metal oxide film...

  • Posted May 2, 2013
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