Hi, I have a Kurzweil PC3x stage piano. Normally when you power on, it cycles with load screen, then you hear a click sound, and all the buttons stay lit. Now, power on and you hear an immediate click, LCD on but no image, and no lights on the buttons.
I've worked through troubleshooting in the service manual testing the power circuit and some other troubleshooting but no luck. Anyone have any ideas of things to look for or try?
Thank you.