I agree the unit was working fine at your home and admittantly in his home till he changed the cord. He is an owner. Also anyone having audio/video etc equipment should know that if you switch a powercord while the unit is on a arc, spike or just static discharge can occur. Since most of the electronics these days contain a micro-processor of one type or another they are at risk of a static shorting.
I agree with kennyt in that if the warranty is in effect help him otherwise, he's an owner. You have displayed a good level of concience by writing this thread, but I wouldn't invest any guilt in this situation. Sleep well!
I agree with kennyt in that if the warranty is in effect help him otherwise, he's an owner. You have displayed a good level of concience by writing this thread, but I wouldn't invest any guilt in this situation. Sleep well!