A, karaoke OK rooms acoustic music silent

1, take a wired microphone a Insert Merge type power amplifier MIC (microphone)input port, open the power supply, open the microphone pre input control knob tothe twelve o'clock position, put the microphone output volume knob to the twelve o'clock position. Open the microphone switch propaganda, such as microphonesilent, then turn the phone line are respectively inserted into the two microphone input another port test, all input ports are tried after may still silent power amplifier has fault, telephone contact factory technical consulting engineersprocessing method, in does not have the electronic technology support, the faultstate power amplifier on small pieces of paper and the small slip of paperattached to the power amplifier machine, packing factory repair after.

2, such as according to the method of microphone sound and music after silentshould first check the source (VOD) of the input is correct, the input wire is intactand has been reasonably connected to the power amplifier machine, such as wire intact, is properly connected, but the music was still silent, but portconsistent music input port selection panel is with the audio input checking power amplifier, the input port to choose to have the sound of music (if the wire can beoutput from the VOD amplifier with the "CD" input amplifier, and the front panelchose the VOD port, so music is silent).

3, if the examination after the operation is still silent music, microphone sound,should check whether there is fault VOD. The power amplifier to a music and microphone has sound room to check, if there is a sound in the other room music, can check VOD (VOD computer) if there is a problem. If the settings oroutput VOD have a problem solving can be reset.

4, if the combination of professional level and professional power amplifier withcompartment acoustics, inspection is also broadly in line with the method.