A mobile terminal is anchored in a control subsystem, which will function as the mobile terminal’s home service subsystem. An inverting amplifier circuit CP of the current sensor 3 inverts and amplifies the voltage signal, which has been converted to voltage by the current detection resistor RC, and outputs the signal, thereby converting positive and negative voltages generated across the current detection resistor RC to a positive voltage. Accordingly, a gain and panning of an object can be easily controlled without user’s setting for each object using preset information set in advance. The process initiates a burn-in test across the selected set of processor cores. The spring member is configured so that it is substantially less resistant to twisting action than bending action, such that the side-to-side motion of the base element results in rotation of the workpiece.