METHOD FOR CONTROLLING AUDIO OUTPUT IN HOME-THEATER SYSTEM

摘要

The present invention relates to a method of preventing malfunction in a home theater system, the method comprising: checking a reference voltage of a home theater system and determining whether there is a change in the reference voltage, and muting the output of the power amplifier if there is a change in the reference voltage. If the home theater system is in the initialization state, canceling the mute state of the power amplifier and resetting the registers related to the operation of the audio DSP. If the reference voltage of the home theater system is not changed, the output signal of the power amplifier is checked and the power amplifier is Determining whether the audio signal is output through the step, If the audio signal is not output through the power amplifier, canceling the mute state of the power amplifier and resetting the operation registers of the audio DSP, and checking the temperature of the power amplifier Determining whether the temperature of the power amplifier is higher than the set operating temperature, and If the temperature is higher than the operating temperature, reset the operation register of the audio DSP and unmute the state of the power amplifier until the temperature of the power amplifier is within the preset temperature range, and check the current of the power amplifier. If the transient is current, the audio DSP continues to check the current of the power amplifier until it is not in transient state. According to the present invention, when the operating state abnormality in the home theater system is solved by software, there is an effect of improving the product reliability and customer satisfaction.