An ultrasonic diagnosis apparatus that is configured to operate in a combinational mode comprising a first mode and another mode, the apparatus being configured to simultaneously provide output voltage levels using a transducer, the apparatus comprising: an output control unit configured to control the voltage levels of a plurality of outputs of individual pulsers corresponding to said first mode and said other mode; a user interface configured to receive an output value control command with respect to all of the plurality of the outputs; a judging unit configured to judge whether the output value control command enables each of the voltage levels of the plurality of outputs corresponding to said first mode and said other mode to exceed a threshold determined by safety standards with respect to said first mode and said other mode, wherein: when the judging unit judges that the output value control command corresponds to a command that enables a voltage level of an output corresponding to said first mode to exceed a threshold determined by the safety standards with respect to said first mode and does not enable a voltage level of an output corresponding to said other mode to exceed a threshold determined by the safety standards with respect to said other mode, the output control unit is configured to maintain the output corresponding to said first mode to be below the threshold and to adjust, based on the output value control command, the output corresponding to said other mode, and when the judging unit judges that the output value control command corresponds to a command that does not enable the voltage levels of the plurality of outputs corresponding to said first mode and said other mode to exceed the threshold determined by the safety standards with respect to said first mode and said other mode, the output control unit is configured to adjust, based on the output value control command, the outputs corresponding to said first mode and said other mode. an output control unit configured to control the voltage levels of a plurality of outputs of individual pulsers corresponding to said first mode and said other mode; a user interface configured to receive an output value control command with respect to all of the plurality of the outputs; a judging unit configured to judge whether the output value control command enables each of the voltage levels of the plurality of outputs corresponding to said first mode and said other mode to exceed a threshold determined by safety standards with respect to said first mode and said other mode, wherein: when the judging unit judges that the output value control command corresponds to a command that enables a voltage level of an output corresponding to said first mode to exceed a threshold determined by the safety standards with respect to said first mode and does not enable a voltage level of an output corresponding to said other mode to exceed a threshold determined by the safety standards with respect to said other mode, the output control unit is configured to maintain the output corresponding to said first mode to be below the threshold and to adjust, based on the output value control command, the output corresponding to said other mode, and when the judging unit judges that the output value control command corresponds to a command that does not enable the voltage levels of the plurality of outputs corresponding to said first mode and said other mode to exceed the threshold determined by the safety standards with respect to said first mode and said other mode, the output control unit is configured to adjust, based on the output value control command, the outputs corresponding to said first mode and said other mode. when the judging unit judges that the output value control command corresponds to a command that enables a voltage level of an output corresponding to said first mode to exceed a threshold determined by the safety standards with respect to said first mode and does not enable a voltage level of an output corresponding to said other mode to exceed a threshold determined by the safety standards with respect to said other mode, the output control unit is configured to maintain the output corresponding to said first mode to be below the threshold and to adjust, based on the output value control command, the output corresponding to said other mode, and when the judging unit judges that the output value control command corresponds to a command that does not enable the voltage levels of the plurality of outputs corresponding to said first mode and said other mode to exceed the threshold determined by the safety standards with respect to said first mode and said other mode, the output control unit is configured to adjust, based on the output value control command, the outputs corresponding to said first mode and said other mode.