Kamar Posted December 3, 2023 Share Posted December 3, 2023 i have casio ctk-691 that was working fine but suddenly stopped working. I press power button but screen shows " PLS Wait " , Also none of the keyboard buttons and keybed keys working. No sound at all. It looks like cannot boot .Also I cannot turn it off from power button and I have to unplug the ac/dc power plug. adaptor is ok. i need your help . Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted December 5, 2023 Share Posted December 5, 2023 Unfortunately it sounds like replacement parts will be needed, possibly new main board. With the age of the instrument, another used one like it may be the most cost effective solution. Quote Link to comment Share on other sites More sharing options...
supergvozd Posted February 4 Share Posted February 4 I had the same problem. Solution is just waiting. I wait for 1 minute and boot is Ok. Next boot is fast and ok 1 Quote Link to comment Share on other sites More sharing options...
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