my original post has been deleted. The good news is that thanks to a few individuals I have got my CLD-504 up and running again. I believe it was David Norman who remembered a similar thread from the past and was able to direct me there. I found out that this blowing of fuses issue is more common than I thought. Kurtis Bahr did get back to me with the same fix that the old thread mentioned: An Arc Suppressor diode had shorted due to a possible surge and was causing the power input fuse to blow. Kurtis indentied the diode by location and number (D6) and I was able to confirm it being shorted. The fix was to clip and lift a lead to remove it from the circuit. Now the 504 powers up and I'm good to go. I have it connected to a Panamax 1500 so I'm pretty sure it has enough protection but I was wondering if I should use a fast-acting or a slow-blow fuse at this point. Any suggestions? This forum is great! I was able to find and implement a fix that proably saved me $75-100 in shop fees. Thanks to Kurtis Bahr, David Norman and others who helped direct me to a solution!