Hello.
since several days, my XL wasn´t functional anymore. The uP´s interrupt line was disturbed. After removal of the MIDI interface ic HD63B50P, the table became fully functional, except for the MIDI interface. I expected that i could easily miss ic 44, because i don´t use MIDI.
Later on i noticed small voltage variations on the analog outputs , also noticeable on the green output leds. The variations are synchronous with some data on the empty icholder of ic 44. Is the uP missing ic44?
Are those ic´s still available and what will be the price of those ic´s?
John Smith
