Although this synth is 8 note polyphonic, when about 3 keys (chord) are played together then pressing more keys they play with a delay and cut (or note stealing). At one time the fault went away and keyboard played ok, but now the same thing went faulty again. The keyboard is ok as when hooked up through midi with another synth, playing other synth does the same.
The internal battery is bad but this has nothing to do with fault.The main board looks intact.I could do with some help if anyone has been here before and could do with service manual please.thanks,eons