The model number should be on the back, underneath, or maybe printed vertically along a side. Look for any labels you can find....
Could be a product number or serial number that includes some model number. Check Aqous's website for model identification information.
Do you have the manual? May be a troubleshooting section or maybe a reference to an internal fuse.
Are you sure that you did not trip the circuit breaker on the outlet supporting the TV - check that. Plug a lamp into the outlet to see if the lamp lights. Carefully check the power cord connections: they may look connected but are out just enough so no power gets through.