hifi engine

Pioneer SX-838 Faceplate Removal

I would like to remove the faceplate so that I can clean the inside of the glass and remove some dust. All the knobs are off except the tuning knob. The is a threaded hole in the side of the knob and I think there is a set screw, however if there is a set screw I believe it is stripped. I looked at the service manual/schematic for the unit - it doesn't mention a set screw or clearly show one. Help please - I don't want to force anything.