The Power Button on the chassis of my Philips TP3681C is bad. It no longer operates, i.e. the white button that sits on the top of the switch and is pushed by the plastic tab connected to the front panel button no longer moves. While the remote will turn the TV on and off, I'd like to replace the power switch on the chassis. Does anybody have any idea of the part number for the little switch on the chassis. Thanks for your assistance.