DCMark Posted December 1, 2021 Share Posted December 1, 2021 I just received and assembled a brand new PX-870. There are two groups of keys that have zero sound... about 5 keys from the lower register, and another 9 keys or so an octave higher. The keys are adjacent. Is there a factory re-set or some cables/connections to check? This seems very odd for a brand new unit. *Many thanks for any help! Quote Link to comment Share on other sites More sharing options...
Brad Saucier Posted December 1, 2021 Share Posted December 1, 2021 Hi Mark. Welcome to the forums. Unfortunately it sounds like an issue we cannot resolve here. A brand new unit should not behave that way. Since it is brand new, I suggest contacting the dealer you purchased it from as a first step. If you need assistance beyond that, Casio also has support numbers at the link below. Please keep us updated. https://www.casio.com/support/contactus/phonenumbers Quote Link to comment Share on other sites More sharing options...
DCMark Posted December 1, 2021 Author Share Posted December 1, 2021 Will do. Thanks. Quote Link to comment Share on other sites More sharing options...
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