tudoram Posted November 11, 2015 Share Posted November 11, 2015 Hi, I have purchased a Casio piano CDP 230R. I think there is program issue in this model as well as other several Casio keyboard models.Description of the issue:When the Registration Bank feature is activate (keys 1,2,3, or 4) certain group of black / white keys are disabled when I try to play them at the same time.After the piano is restarted the issue disappear unless I re-activate registration bank feature. Steps to reproduce the error:Step 1: Start the piano/keyboard and play first group of 3 black keys at the same time (polyphony) -> all three keys work and you can hear the polyphony sound;Step 2: Play the first group of white keys which surround the first group of two black keys -> all three white keys work and you can hear the polyphony sound.Step 3: From the registration bank select any key from 1 to 4 then press the Start/Stop button -> the background song will start;Step 4: Repeat steps 1 and 2 -> the group of 3 black keys or white keys do not play. They are deactivated in polyphony mode;Step 5: Press Stat/Stp button to stop the background rhythm and repeat steps 1 and 2 -> the group of 3 black keys and white keys are disabled;Step 6: restart the piano / keyboard -> everything is normal now and polyphony works. Note: individual keys are still working when registration bank is active.I tried few Casio models: CTK3200, WK6600, CTK6200 and they all have this issue:I tried models: CTK200 and a Privia model and they do not have this issueI tried few Yamaha and Roland keyboards and none of them has the issue. Is it s know issue with casio and requires un upgrade of the firmware? can someone give an advice?I intend to return the piano. Thanks,Marian Quote Link to comment Share on other sites More sharing options...
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