Marantz 6300 horrible buzzing noise + no audio!


Hi everyone! 
I recently acquired a Marantz 6300 from eBay. Working with no problems. Long story short, I decided to upgrade, tonearm wires and rca cable, and now I have this really bad buzzing and No audio at all, it's really frustrating... Any ideas what it could be? I checked continuity from the tonearm and the RCA cables and everything is good... 
 
Note! 
I replaced the capacitor from the board too.
erivera1990
Note!
I replaced the capacitor from the board too.


Any ideas what it could be?


I've got one. Can't quite put my finger on it.... it worked before the cap... doesn't work after the cap.... dang this is a hard one....
Nah, how do you get a capacitor switch-out wrong? My guess is open circuit ground somewhere in the rewired signal path. Overheated solder joints?
You should have held on to the Technics!