HulaDouk Posted September 8, 2021 Share Posted September 8, 2021 I have a two year old PX -780M. We just tried turning it on and there is no sound when pressing the keys. The volume is turned up and there are no headphones plugged into the jack. It worked last time I turned it on. The manual does not help nor do I know who to contact for help. I tried unplugging the piano and replugging in. I also tried a factory reset. Any ideas? Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted September 8, 2021 Share Posted September 8, 2021 I would try the factory reset procedure again, just to make sure it completed successfully. Have you tried with headphones connected to it? Have you used headphones with it in the past? If all else fails, you may try contacting the store you purchased it from, or contact Casio support directly. The site below has US and Canada numbers listed. https://www.casio.com/support/contactus/phonenumbers 1 Quote Link to comment Share on other sites More sharing options...
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