I'm french . I hope you will understand my english.
I heard about some problems with midi functions with for example PSR295, DGX205 and higher (usb midi). Some users have reported that the midi functions can be used only with a computer. Is it right ?

Is there the same problem with arrangers with classical midi input/output such as DGX500, and the new PSR E-203/303 ?

Thank you for your answers.