I was seeing an error on startup which read "SID 4 not available (CAN bus errors)", along with a flashing top row of LEDs and flashing left column.
I searched the forum and found this thread, which gave me some direction:
http://midibox.org/forums/topic/13270-sidx-not-available-can-bus-errors-after-wiring-mb-6582-cs/#comment-119958
Specifically this comment from Wilba:
So, I disconnected my LCD from the control surface and the flashing LED issue went away, so I must have been shorting the tactile switches behind the control surface.
However, I'm still getting the same error whenever I try to access any SID module other than SID1...
For reference, I can confirm that all of the D1_COREX diodes are in place, as well as R80. I've reflowed them to be sure the solder joints are good, but still no luck...
Perhaps I should replace the diode under Core1? Other suggestions?
Appreciate any insights.