Technics SX-K250 Electronic Organ Sold to me supposedly in good working order but just missing a lead. I sourced a lead and plugged it in and it powers up and if you press any of the upper buttons a light illuminates, but when you press the keys no found comes out of the speakers ! I have all volumes turned up, am I missing something please ? I have put it on auction and if it does sell it will be as spares or repairs unless I get done advise and I’m missing something.
eBay