Nexus 7 will not power on or connect to computer

Good Morning
 
I have a Nexus 7 Version 2 that will not power up and that when connected to a computer you do not get the device connected sound from the PC. The Charger and cable work when plugged into another Nexus 7. What happens to the data on the device when you repair? What type of repair would you do in this instance?

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