凤凰手机彩票

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                投影机无画面如何判断
                

                

                
投影机出现无画⌒面状况时请做如下动作进行确认

                (1)检查是否正☉确连接输入信号，保证所有信号电缆正确连∩接
                

                (2)确认是ω　否取下镜头盖
                

                (3)调整亮度和对比』度
                

                (4)确认㊣　电源指示灯是否亮，如果不亮则属于电①源故障(5)确认状态指示灯是否亮，如果亮，说明机台出现故障