Hello all, this is my first post. Hoping that someone may have an easy fix for a small problem? My mother-in-law recently donated her old SX-450 to my collection. I got it cleaned up it starts up well with no obvious power switch issues. It pulls in stations well and both channels are full power. Only issue is that the lamps are all out including the orange power indicator. I was going to replace all the bulbs but I don't think this ever was used very much so I checked the voltage to the bulbs. It reads 0 when the unit is powered on. The stereo indicator does light up and measures about 7.5v. Am I missing something obvious and should just replace the lamps or is there something else going on here? Thanks to anyone looking that might have ideas!