All posts by Jestine Yong

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  Dell Studio laptop with model PP33L has a touchpad problem-solved.

  Dear all, A Dell Studio laptop with model PP33L has a Touchpad problem. The problem was buttons (Right click , Left click ) have  no respond to click. I guessed at beginning the problem was software, the...

  • Posted July 12, 2013
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• How to Detect and Troubleshoot Computer Hardware Issues?

  No doubt, computers have turned into an unavoidable part of our every day requirements. However, for all the positive aspects they can accomplish, they even encounter many different problems that can bother a user. If one hardware...

  • Posted July 12, 2013
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• No Display In Acer 17″ CRT Monitor

  I have one problem with acer17″ CRT monitor. There is no display, no EHT development, but power supply all voltages are ok and supply voltage to microcontroller(WT6116) and horz. osc (TDA4856) is ok. Front LED status changes...

  • Posted July 12, 2013
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  Things That I Bought Today

  Today I went to Pasar Road again (electronics center) to buy some stuff for my workshop and repair class to use. I bought 7 pieces of 24 volt 50  VA linear transformer, 5 pieces of UC3845, 3...

  • Posted July 11, 2013
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• Video: How To Make A MotherBoard

  Factory in China about making computer motherboard. It has to go through lots of process before you finally see the product. Likes(1)Dislikes(0)

  • Posted July 11, 2013
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• Slightly Higher Than Rated Output Voltage

  I have one question recently i have checked the camera charger so the LED lit on while the rechargeable battery inserted but after a while it became dim and dim slowly. Then i have measured the output...

  • Posted July 11, 2013
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• All about Coaxial Attenuators

  As resistive type networks, coaxial attenuators are mostly used for adjusting signal levels in military and commercial RF and microwave systems. While choosing the right coaxial attenuator, you need to keep certain parameters in mind. The typically...

  • Posted July 10, 2013
  • 0
• Low Ouput Voltage From Voltage Regulator IC

  I have two Big 40″ dell LCD screens with the same fault. The 12.8vdc supply to the the three fans has a voltage drop to 7.5 V. They are fed from an KIA278 R12PI. With fans disconnected...

  • Posted July 10, 2013
  • 1