Do not shut the power off, lift the top and a drop down prop will come down to hold the top in place. Push down on the cartridges and they will pop up in back now they can be removed.
Remove the wrappings and don't forget the bottom protective tape band. Next slide the B cartridge back with a slight front to back tilt and it will stop, then lift the front until you hear it click into place. Do the same for the other .
Remove the wrappings and don't forget the bottom protective tape band. Next slide the B cartridge back with a slight front to back tilt and it will stop, then lift the front until you hear it click into place. Do the same for the other .