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• No Power In ATX Power Supply Solved

  My friend brought to me his work computer power supply to fix it. When I test the power supply it didn’t work, I mean the fan didn’t rotate. At...

  • Posted June 30, 2013
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• Video: Missing 12 Volt In Element Hisense Dynex Insignia LCD TV ELCHW402

  Another great video recommended by Beh Likes(3)Dislikes(1)

  • Posted June 30, 2013
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• Replacement For PC817 Optoisolator IC

  Sir Can you help me, Do you know the replacement value for this part number COSMO 1010 817 H25 (PHOTO COUPLER) Answer: The actual part number is PC817. You...

  • Posted June 30, 2013
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  Treadmill Repair

  A dead treadmill that brought back to life A guy who is selling second hand sport equipment brought a power board that was dead. This power board is a...

  • June 29, 2013
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• Hissing Sound In TV

  At the starting my TV produced heave hissing and wiring noise. After few minutes it will disappear. But picture and sound are clear. Answer: Hissing sound usually are caused by transformer,...

  • Posted June 28, 2013
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• Display “Locked” in LCD/CRT

  The moment power on, the screen will display “LOCKED”, i don’t know how to reset to remove the screen lock. Answer: You need the service manual to find out...

  • Posted June 28, 2013
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• Power Good Problem In ATX Power Supply

  I managed to fix the power supply partially and measured all the 24 pin and they all have proper voltages (3.3V, 12.1V, 5V…etc.) however one issue remains…. I’m using coolmaster...

  • Posted June 27, 2013
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• Taking Out All the Components From Circuit Board For Testing

  When i see someone repairing any electronic circuit board it’s always a in circuit analysis because it doesn’t make much sense to take all the components one by one...

  • Posted June 27, 2013
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