Hello all,   I have recently completed a Sammich that has been sitting on a friends shelf for the last 4 years!   I will explain what has happened so far to try and give a clear picture.   The build went really well apart from a lifted pad which was repaired (this only affected the low power LCD backlight) and is now working.   Everything electrical checks out, all test points are clear and there are no shorts, the correct jumpers are set for the 8508 SID's, the voltage jumpers are corre