When the damp weather, every time you open the audio systems, speakers "creak" hum, number 10 min after fault phenomenon slowly disappeared; and in the dry climate fault rarely occur.W9hservice manual download site
Analysis and maintenance of: Judging according to the fault phenomena, the sound source equipment may be faulty, but turn off the sound equipment power supply, fault still exists, and concluded that the failure in the mixer and power amplifier is one of the mixer. When overhaul, open the chassis of the integrated mixer, found inside the components covered with dust, especially power amplifier cooling fan next to electricity.. After cleaning, troubleshooting.W9hservice manual download site
From this example, we can see that when humid climate, due to the accumulation of dust damp, with some electrical conductivity, components or circuit is easy with the dust formed certain resistance, "leakage" phenomenon produced in the circuit, resulting in a variety of possible fault; and when the climate is dry.W9hservice manual download site
Dust dry and restored to the insulation state, the fault will disappear. This phenomenon. In the south of the rainy season is more outstanding, this is only required by the electrical device heat tidal flooding fault is naturally slowly disappear. So, usually to pay more attention to maintain good equipmentW9hservice manual download site