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I am using hp pavilion dv4 laptop.I never had any issue with my laptop's microphone but recently it has started giving me a bit of a trouble.It is not working as usual.plz help me out. A big thanks in advance.
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If you have no experience with opening an repairing computers or laptops I recommend you take the computer to an HP Laptop Service center. If you understand the issues involved you can order a cooling fan from HP and install it yourself as long as you keep track of the screws in the outer case and where they go as well as any cabling.
sounds like your power inverter is going bad. replace power inverter and see how that works. Other issue if not solved is probably lcd screen. Inverter's can be found cheaper used if you use the serial number on your old inverter for searching, seeing as how inverters are often used on many different of machines. FYI.
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