Philips rear projection TV model 60P8342.
It`s not Eprompt, it`s the Eprom, Erasable Read Only Memory. The Eprom holds all the information in it about your set like has it got Ni-cam Sound, A wide-screen, A projection set plus a lot of other information like Convergence settings, RGB setup, PAL, NTSC settings plus customer settings like Colour, brightness etc. There are other settings besides these which are in binary bit code which can control the power supply, Standby timing etc etc. The Eprom may only be an eight or a sixteen pin device but it a crucial part of the set where information is perminantly being read from the Eprom to make sure the three guns are set correctly and the convergence errors are being kept in check. This is a very time consuming job even for a qualified technician, I know, I used to do these and Philips sets are notorious for Eprom and uPC failures. The Eprom comes formatted from the suppliers, so there`s absolutley no information in it at all meaning that you have to start from zero. If you can get the set to come on long enough and you can get the set into service mode, you may be lucky where you can write down the 200-300 or so settings, If not, WHAT A JOB. Believe me, you can change the Eprom in 2 minutes, but it could take 1 or 2 days to set it all up again and even then it`s very difficult to get it perfect. Ian