3, do not install the machine near the air conditioning vent , cold air meets water vapor condenses fans will be drawn into the machine , a large number of condensed water will damage the motherboard . Such cases occurred in the southern areas of high humidity.

Reasonable choice of installation location can effectively prevent moisture , dust, damage to the machine, to extend the life of the machine .

4 , absolutely not use nail fixed hanger , because the cement around the nail cracking increases with time , can not afford a big downward pull , once off the hanger will have serious consequences.

 

"Electrical Installation" most problems , one power supply system has a problem , the second is to install non-standard . The following issues have been talked about many times to repeat to you :

 

 

1 , the first power supply voltage instability , high low , at the end of the grid , low to high over 160V 260V, late at night when low peak voltage electricity nearly 300V, we have the measurement records . The projector will supply high voltage partially damaged during the night standby. Some places continuously burn power board is this cause. Such incidents have occurred in the country, poor power quality problem is particularly acute in some areas .

During installation must be certified by the electrician staff to carry out all the associated equipment and the projector must use the same power supply , and is equipped with the appropriate insurance and switch the power supply system, stop cutting off the power supply when used. When low peak voltage electricity will be high , ceiling mounted projectors are always connected to the power supply , if not cut off the power supply will cause damage , we need to pay special attention to this issue , shut the machine after turning off the power.

 

2 , three-phase power system voltage imbalance disorder "zero line" , " ground" , regardless, or "zero " on behalf of " land" , resulting in the burning of the projector interface accident , the brand machines have occurred . ( See previously made the " insulation hanger " article ) will be a great loss caused . The problem we have repeatedly emphasized , but has appeared , first, a clear understanding of this issue , the second is like to have chances to save a few corners . As everyone knows , once produced damaging dozens of hangers to catch all the money , do not lose the greater.

 4   Home Previous 1 2 3 4 Next Last