help - usb diagram

hi all
i have laptop Compaq presario 900, 2 usb port can't load or up data, ( i had check power on USB good -/+ 5volt by VOM )
this problem can repair? how to repeir ? i want diagram conect USB to mainboard
sorry type bad English , i wish you understand,
please answer on this topic or email :
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More about help diagram
  1. USB are standard layout. You should be able to find the USB wiring schematics online.
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