Hello,

I am sorry for the issues you are having.  Have you taken the lid off of the DVR and disconnected the Hard Drive?  I would try this and see if the unit will come back alive.  If it does come back up, then you would simply need to replace the HDD with a surveillance series HDD like Western Digital Purple or Seagate Skyhawk or SV35.  If the unit still doesn't come back on, make sure your power supply is still outputting 12vdc.  If you have a spare 12vdc 5amp power supply, you could try that as well.  Let me know what the results are. 

Well, that is a lot less expensive to replace than the entire unit.  If you need anything feel free to give us a call and we will see what we can do.  I am glad you were able to get the unit operational.