Professional sound equipment tuning platform control problem: there are many kinds of sound equipment, our sound division needs to adjust each sound equipment. We say artificial operation failure mainly occurred during the performance, such as silent, broken, back, noise and so on. 

1. Tuning channel level attenuation switch: some tuning sets add a 20dB level attenuation conversion switch in front of the gain knob. When the CD is input from the high resistance port, the switch may be necessary to press the conversion switch to attenuate the sound source signal by 20dB due to the high level. 

2. Platform gain adjustment: some sound artists do not know the importance of channel gain, this knob random tone, sometimes turn off the gain knob, and even press the 20dB level attenuation switch, think how small the sound will be at this time? 

3. Tuning table balance group adjustment: As the name suggests, the tuning table is mainly used to adjust the tone, and the adjustment of tone mainly depends on the balance group. It is very simple, nothing more than the high,medium, bass plus a few corresponding frequency selection knob, under the normal operation, although the sound may not be very good, but there will be no performance accident. But some sound artists sometimes boldly turn around the balance knob, if the bass is added very large, the burden of the whole power amplifier and speaker is greatly increased, which may damage the equipment, and the sound will be easily distorted. 

4, Tuning table AUX adjustment: everybody AUX is mainly used to send signal to the effector, in a tuning table, if we send signal effector from AUX6, after the effector processing if the output of 2 signal to the 23-24 channel, then 23-24 two channels AUX6 knob will not open, otherwise just after the effector processing, the signal will flow back to the effector.