i need to be skool'd

[SPLaudio 5,000+ posts]

my friends class d amp blew all the input caps and 4 of the output caps. so i replaced them, nothing else was damaged that i tested (newbie= me amp repair). so tonight i installed and it played for about a min and started smoking and sounded fine even when smoking. i shut it down and opened it up 2 of the output caps blew again. what is causing this? thanx for ur help.

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[Neel 10+ year member]

maybe the power supply is shorting somewhere?

 

[SPLaudio 5,000+ posts]

maybe, i know lil about amps internals when it comes down to repairing them. i got a new 1 on the way for him just would like to fix the problem.

suprising part is it sounded good...

 

[snoopdan 5,000+ posts]

Sounds like bad switching transistors...like one or more are leaky or just in an open state.