Hello
I have a problem with my keyboard. The keyboard randomly turns off, and then I cannot turn it on for a while. Sometimes I can use it for 2 hours and works fine, sometimes just 5 min and it turns off. I have opened it and everything looks fine, nothing is burned. I have also replaced all the capacitors on the power board, no change. The transformer is a bit complicated. It has five outputs. 2x8v, 2x18v and common (name from wiring diagram, I think it means GND). I have measured all outputs and it shows 1x9v, 1x4v, 2x16v. Then I connect the 1x9v and 1x4v together for a second, and the keyboard powers up. The measurements when keyboard works are 2x10v and 2x16v. Does that mean that the transformer is faulty, or just that something on the power board got a little boost and powers up? Please help
Thank you
I have a problem with my keyboard. The keyboard randomly turns off, and then I cannot turn it on for a while. Sometimes I can use it for 2 hours and works fine, sometimes just 5 min and it turns off. I have opened it and everything looks fine, nothing is burned. I have also replaced all the capacitors on the power board, no change. The transformer is a bit complicated. It has five outputs. 2x8v, 2x18v and common (name from wiring diagram, I think it means GND). I have measured all outputs and it shows 1x9v, 1x4v, 2x16v. Then I connect the 1x9v and 1x4v together for a second, and the keyboard powers up. The measurements when keyboard works are 2x10v and 2x16v. Does that mean that the transformer is faulty, or just that something on the power board got a little boost and powers up? Please help
Thank you