Gentlemen,
Here is an interesting story. I took a (mostly) working K7000 chassis off of a monitor. It had a slight horizontal issue (as you may recognize from my Neo Geo thread) and I wanted to put a new C38 cap on it. I replaced the cap and hooked it all back up. Upon power-up, it blew the fuse. I took the chassis out and cut the leads closer down to the chassis and hooked it back up again. This time, upon power up, sparks started coming out from under the chassis. I took it back off and looked on the solder side. The area around the pin that the yellow wire from the yolk connects to was charcoaled. I cleaned it up and reflowed the solder and hooked it all back up. Now the chassis hums and that is all. This is not a typical high voltage hum, but more a "mechanical" sounding hum. I cannot specify further where the hum is coming from because I do not want to give it power for too long. Any ideas on where to start? If you need more information, just let me know. Thanks in advance.
Here is an interesting story. I took a (mostly) working K7000 chassis off of a monitor. It had a slight horizontal issue (as you may recognize from my Neo Geo thread) and I wanted to put a new C38 cap on it. I replaced the cap and hooked it all back up. Upon power-up, it blew the fuse. I took the chassis out and cut the leads closer down to the chassis and hooked it back up again. This time, upon power up, sparks started coming out from under the chassis. I took it back off and looked on the solder side. The area around the pin that the yellow wire from the yolk connects to was charcoaled. I cleaned it up and reflowed the solder and hooked it all back up. Now the chassis hums and that is all. This is not a typical high voltage hum, but more a "mechanical" sounding hum. I cannot specify further where the hum is coming from because I do not want to give it power for too long. Any ideas on where to start? If you need more information, just let me know. Thanks in advance.

