Roland C-180 PORTABLE ORGAN has no SOUND
Hi staff. I have a keyboard, or rather a Roland C-180 PORTABLE ORGAN that suddenly has NO SOUND. I have no scheme to try to do a better analysis. I immediately thought it was the internal amplifier but it is not, because it is working normally. I am thinking that maybe there it as malfunction with the programmer circuit that controls everything, because it doesn-t anything at all. I ask for help please.
Thank you very much.
Manuel Loto