Thank you for that information. For this you will need a technician to repair the organ because the is definitely an electronic component failure to blame for this issue. Its not your fault even though you may have left it on, that shouldn't have caused this problem. But the repair is not expensive and this Roland organ is worth he cost of the repair for sure!
The best thing to do for this one, si to do a local web-search for Organ /Piano repair. You should be able to find someone who will come to your home to fix this for you. It should cost less that $100.00 as the part is only a few dollars art best;-)
I wish I had better news for you, I really do bu at least it is fixable for not too much money.
In any case, I will stick with you until this is complete.
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