Hi, Guys. I have a Behringer inuke 3000dsp power amp for repair.The mains input fuse is o/c and on
closer examination found r37 smd burnt up and c30 close by also suffered.There is a slight burn mark
between 2 legs of a nearby ic [ K63005 ] which I suspect has gone belly up aswell. The switch mode
power devices measure ok,so I checked the 4 IRFS4227 mosfet outputs and they read ok , although
one of the 12ohm 5watt resistors in the zobel network of one output stage was o/c.The customer
only uses it in church hall so is not driven to hard.He said it worked fine then next day no power.
Has anyone got a schematic or any clues?
Cheers, Peter [ byronboy]
closer examination found r37 smd burnt up and c30 close by also suffered.There is a slight burn mark
between 2 legs of a nearby ic [ K63005 ] which I suspect has gone belly up aswell. The switch mode
power devices measure ok,so I checked the 4 IRFS4227 mosfet outputs and they read ok , although
one of the 12ohm 5watt resistors in the zobel network of one output stage was o/c.The customer
only uses it in church hall so is not driven to hard.He said it worked fine then next day no power.
Has anyone got a schematic or any clues?
Cheers, Peter [ byronboy]
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