Yamaha CS80

hi folks, sorry this is only peripherally 80-related. i have stumbled into 2 cs-40m's for dirt cheap, both non-working. my question is this: is this a power supply that needs to see a load when powered up, or would i need to short any of the voltages or ground, or something of that sort to power up with no load? after doing some testing, im led to believe that something beyond the PSU is causing the main fuse to blow. here's a link to the overall circuit diagram:

http://www.megaupload.com/?d=FP73F7MD

thanks much for the help!



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