Now this is bloody wierd
the first thing i swoped with the good speaker were the displays and they both definatly worked with the good speaker.
I swoped the base's over and only the good speakers base powerd BOTH displays. So after some rewiring and continuity checks i put everything back together but still no display in the 1 speaker.
ive now swoped the displays again and the display out of the good speaker now works on the faulty one but not the other way round.
By swoping the pcb's ive now got it down to the rear circuit board from the display (must have damaged something with all the taking apart)
