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3, why a white projection screen will appear blue or purple patches phenomenon ?
Answer: there will be a white projection screen or even blue-purple plaques explain the phenomenon of projection optical system inside the red polarizer damaged, so the image projected by the projector will be cast out of the phenomenon , to solve this problem is to to replace a new red polarizer. However, this red polarizer replacement operation , you need to turn on the projector housing , but because of the presence of high voltages inside the projector , may cause damage to the human body , so you'd better ask a professional maintenance staff to replace the red polarizer , the projector can also be sent to the repair shop to replace .
4 , Why projector to replace the power cord after resume normal job?
A: If the projector does not work in the original post for a power line to work properly , then it means the projector does not have any problems, questions should be out in the projector's power cord. Generally there are very significant differences power cord specifications and compatibility with genuine projector 's power cord specifications and compatibility defective projector, projector once used the defective power cord , it may seriously affect the product stability use. For example, the projector's power specifications are 110V and 220V compatibility with several types , if unscrupulous manufacturers to 110V power supply specifications of the product through a simple modification makes it suitable for Chinese users of the product , then this product will certainly come back once the purchase compatibility is poor, short life. Therefore, you should also check the projector's normal operating voltage is 220 volts at the time of purchase must be on the spot to test the projector's about power .
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