So I finally got my case and installed the CTH in it. First, there's noise now thats not really a hum but a sharper buzz sound. Secondly, I blew a couple fuses before realizing that my case which has not yet been grounded is 12.4ish volts above ground. This is not the output ground voltage which is just under 12 volts. As long as the case isn't grounded, it works fine except for the buzzing. I checked all the obvious points (e.g. power, different signals, grounds) to chassis and they're not shorting. Any ideas? Maybe some part of the heater supply is hitting it causing the buzzing?
post #1936 of 2213
2/5/10 at 4:52pm