.45 amps, basically a half amp. Something just tells me that isn't sum total for the whole thing, it may be what that particular chassis uses but it may not include the turntable, and any other stuff in there. I'd expect that figure to be on the back panel somewhere, readable without taking the cover off.
Lacking better info, try a 2 amp fuse and see what that does for you.
Thats definitely not a 1 watt resistor. The part number provided is probably a Sears internal one, not something you're likely to find now.