Stereoboy70
Active Member
I’m working on an Onkyo TX 870 receiver. The main rectifier blew up and took out some other transistors. It was blowing the main fuse every time but now it’s ok sisnce I’ve replaced several components. The issue now is the speaker relays won’t close. The 2 100uf caps and the big 3300uf cap has been replaced as well as other transistors but Q524 is getting super hot after power up and no speaker relay click. The other set of transistors for the right channel Q521,523 do not get hot. Any thoughts on this. I’ve checked almost every component on the left channel and also the protection circuit but I can’t seem to isolate the problem. Thanks in advance.