Little help with Yamaha CR420
Hello everyone I got a CR420 recently and i have being working on it for a couple of weeks now. When I got her the Left channel was blown, actually when i power it up for the first time one of the transistor exploded (That was not funny). I have replace all the power transistors, the big heat resistant resistors, the exploded little guy and its counterparts and most of the capacitors except for 2 mysterious caps that I can see correspond to C413(4), C419(20) and C421(22). in the diagram and boards drawing, they show not catalytic but in reality they are. So that is my first doubt.
Now its working but the right channel sounds hiss-y (i don't know how to explain) and the sound comes and goes. i have no idea where the problem is. I checked the balance pot and all the switches and the problem is somewhere else... more days of fun ahead.
The other question i have refers to the 2 large resistors in the main board i think they are R514 and R505. I cannot for the life of me find a replacement. Any suggestions?