DEAR COLLEAGUES: I ENTER TO REPAIR A HOME PHILIPS MODEL THS3090 / 77 WHICH DOESN'T READ THE DISCS, THE TEAM WORKS BUT THE READER DOES NOT READ ANYTHING. IN DISCOVERING I FIND THAT THE READER DOES NOT HAVE ANY CODE ONLY HAS THESE (2) LABELS WITH THESE NUMBERS 306704IFD AND THE OTHER IS CSEFM31J506. IF ANY OF YOU CAN INDICATE THAT OPTICA LEADS I WILL THANK YOU. FROM THANK YOU ALREADY THANK YOU AND I AM WAITING FOR AN ANSWER. THANK YOU SO MANY THANK YOU CAREFULLY ERNESTO