PHILPS microphone plugged into the microphone, there is a big noise, what should I do?
This is to see what specific sound, generally speaking, there are two situations
Two. Hum:1, two microphone leakage (welding).2, the replacement of poor quality housing (caused by the replacement of good quality housing, or with aluminum foil shielding, but it should be noted that the vast).3 、 transmit power is too strong (in the transmission signal sampling line plus resistance, reduce power amplifier).
This is to see what specific sound, generally speaking, there are two situations:A sound of firecrackers:1, the machine board discharge phenomenon (cleaning and drying).2, the tail plug leakage (cleaning, drying).3, telephone tray is broken or not good quality.4 、 soft line short-circuit leakage.5, audio peripherals to weld leakage.
