Built-in microphone on the laptop the problem ... thank you

Users questions:I have one other laptop (the company went out of business. I do not know Consulting who) .. hope you can help me to resolve what. Grateful problem this computer does. Is also a laptop computer. It has a built-in microphone. But in the use process. I do not want to use it. I just want to use their own outside to buy headsets. This computer also has socket. A voice. A Mike's. But I use an external headset when. All the plug is getting better. Headset light with sound. But you can not use the microphone. In the Properties menu select mic option chosen not static tone when. computer's speakers issued a harsh Fengming voice. I did not evenMody way. I just hope that qq.msn in audio video. To take advantage of an external headset. And do not wish to use their own built-in microphone. I hope you help me to resolve what the wind .
Experts answer: marks headphone jack is broken, or bad contact, it is small problems, to find people who understand you with anhydrous alcohol NongnongOn the list. Because this model of headphone jack, then Mike and then virtually identical to the structure of headphones, are external, after insertion itself will be built off the line, are the physical pieces of metal on the open contacts and Alice design. Buy such a connector block also 0.50, but the challenge was to open theLaptop repair, so you'll find people who understand you Nongnong.
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