|
Welp guys, I have an update. I fixed the wires on the power transformer making sure everything was insulated properly. I wire it back up the right way (made sure of it). I plug it in and nothing happens until I heard a pop. C225A (250uF, 50V)(on the RCA schematic) had exploded and let out all it's smoke. It looked like a smoke bomb, it was pretty neat. The failure was on the negative end of the capacitor. I never understood this capacitor anyway. It's positive end is connected directly to the filters after the field coil, the +280V point on the RCA schematic. It's negative end is connected to the negative end of C225B (1000uF 100V). At that point it also connects to the +275V point on the schematic. I never understood how DC current goes through it or if it's part of a voltage doubler. Can anyone here explain it's purpose a bit more?
Thanks.
Jonathan
|