Pioneer XA 780 Receiver ....no sound !


My son has this vintage Pioneer 780 receiver and was using it with old JBL D 130 speakers
( in cabinets )... there was no problem at all. 
However he now changed speakers to vintage KLH 355 " baron " speakers... playing it at higher volume for TV as well as music.
Now the Pioneer has no audio but everything lights up. Could he have been over driving it ?
Opinions ...Thanks


rocky1313

Showing 1 response by atmasphere

I'd check the fuses. IIRC there are some on a circuit board internally but its been years since I've serviced one of those.