Sharp Commercial Microwave Oven Model R-22GT-F

[mlb200180]

Looking for a service manual or a wiring diagram. There's no diagram on the oven. Im repairing the oven for a customer and it looks like they tried to fix it themselves. They gave me a bag with some screws and a fuse in it but I dont see a fuse holder anywhere. All of the ovens Ive worked on usually had a spot for a fuse so I need to know if this oven is supposed to have one. Also, Im getting voltage from the power cord to a circuit board that power runs to before the main control board but Im not getting any voltage out. I don't know what the name of this board is or what it's function is. Any help would be greatly appreciated.

[RegUS_PatOff]

R-22GT Parts List & Diagrams & Schematics

[mlb200180]

Thanks alot. Just what I was looking for.