hifi engine

Help required on my Rotel 840 B

Hi Happy New Year to you all

My faithful amp has blow both the main 5amp fuses
Has anybody any ideas what the cause of this is ?

I tried replacing these after disconnecting everything and turning the volume down to zero
but they just glowed and blew.



Help required on my Rotel 840 B

I assume you have the RA840B. One or all of the audio output transistors may be shorted, or there is power supply damage (possibly shorted bridge rectifier or shorted filters capacitors.
If the output are shorted there very well could be additional damage in the amplifier.