Chosen Solution
Hi there I am currently having a problem with the Yamaha PSR-S900 keyboard whereby it is making a crackling noise and the buttons are flashing, screen is flickering etc. It seems to make this crackle at the same level regardless of what I am doing on the keyboard. The keyboard functions still just with this crackle and flickering lights/display. I’ve already replaced the power unit but it still has the same problem.Would you have any idea on what the issue is and how best to solve it? Many thanks.
Can you open up the keyboard and check for any leaky or bulged capacitors? I have attached a picture for reference.
