维修电子琴时，应首先根据故障现象，判断出故障发生在哪一部分，然后再找出故障发生点，对症下药，更换损坏的元器件。1、电子琴工作不正常如果开机后电子琴出现不响，杂音较大等不正常的现象，则是由于复位功能失效造成逻辑混乱，应检查施密特电路。可用示波器检查伴奏块和旋 Maintenance of the keyboard, should first be based on the phenomenon of failure to determine where the fault occurred, and then find the point of failure, the right medicine, replacement of damaged components. 1, the keyboard is not working properly If the keyboard does not sound after boot, noise and other abnormal phenomenon is due to reset function failure caused by the logic confusion, check the Schmitt circuit. You can use the oscilloscope to check the accompaniment block and spin