If your NAD product does not power ON (no status LED/display) even when connected with a different power socket; at the moment, we are unable to troubleshoot the issue remotely.
Please reach out to your nearest NAD Authorized Dealer or Distributor for further evaluation.
If there is no Service Centre in your vicinity, please reach out to any of the other locations via phone or e-mail and they will be happy to make a recommendation on how to ship your product for service as they have experience in that matter as well.