130 amplifier keeps blowing fuses ?

Guest

i got a avr 130 amplifier,

i noticed it had blew 2 power transistors i replaced them and on power on it keeps blowing 2, 5 amp fuses in power supply, and it also blew the new recplacment power transistors again?

anyone please advize what the problem might be?

polaret · Joined: 23 Oct 2004 Posts: 90 Location: greece

Hello before you put new power tr again you must check the driver (of this)stage tr- resistors and finaly without power tr, check voltage and polarisation