Jay it should help, just as an AC conditioner should, but to find out for sure here's a quicky test you could try. Cut your stock line cord close to the back panel (within ~6"). Attach your chassis-mount IEC to the pigtail using crimp-on fastons, then try your upgrade cords into that. If that is successful, then you know what to do. Go inside the back panel, mount that IEC, & run quality wire the rest of the way in. If the test proves to be no improvement, then you either completely replace the original AC wire with zip cord again, or use butt connectors or solder-splice & heat shrink the junction reattaching the original wire.
