AndyCasio Posted March 2, 2021 Share Posted March 2, 2021 Hello everyone, I need help with Casio PX 735. It worked perfectly since 2012, but suddenly something went wrong. It starts normally, the Function keys work well, Demo songs play right, but some of piano keys don't do any sound, and some produce randomly loud, quite regardless the pressure. So shortly saying more than half of keys are silent, and very few do sound. Please, let me know if you know solution. I would like to see experts opinion before bringing it to workshop. Thank you Quote Link to comment Share on other sites More sharing options...
Random_Vibration Posted March 2, 2021 Share Posted March 2, 2021 Did you try the compressed air trick between the keys? Do you keep a cover on the keyboard when not in use? When was the last time you used it and worked well? Quote Link to comment Share on other sites More sharing options...
AndyCasio Posted March 4, 2021 Author Share Posted March 4, 2021 Hi, thank you for reply. Yes, it always covered when not in use. Basically it is used everyday for around 2 hours. So, it was working well, and next day stopped. I have a short video how it works now, which i sent to some technicians but they don't know what is going on))). I didn't try compressor so far. Quote Link to comment Share on other sites More sharing options...
AndyCasio Posted March 4, 2021 Author Share Posted March 4, 2021 Casio PX750 Problem.mp4 Quote Link to comment Share on other sites More sharing options...
AndyCasio Posted March 4, 2021 Author Share Posted March 4, 2021 This is how it works now. Quote Link to comment Share on other sites More sharing options...
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