If it died that quickly, pack and return it.
H i brought a LG Surround Sound DVD player system model:HT303SU. I got it home and plugged it in speakers and all and it worked fine. i plugged my av to 3.5mm auxilary in and tried to play my ipod, worked fine until i swapped the cord for a longer one. the speakers made wierd noices and it froze, i turned it off at the wall and booted it back up and when you turn it on the speakers crackle for a second and it now plays no sound. and it did make a long ear piercing beeb a few times i tried to restart it. any ideas?