KSA-50S no sound problem- please help

Status
Not open for further replies.
Hi all,
My brother just bought a Krell ksa50s off eBay.
It's DOA. Amp start up nicely, click relay and all bias led are on - then after a while the led go off pair by pair - We connect with balanced inputs but no sound. We also try with RCA ( with jumper on 1/3 of XLR) still no sound
No smoke or smell come off the amp. It's start up sequence seem ok.
Any one think off any simple reset that I can revive it. Or any internal fuses that need to check? Input board toasted?
Your comments really help before we send it back to seller, or to Krell
Thanks
Thuan
 
Status
Not open for further replies.