近日,为同事制作多媒体课件,正当得意洋洋地将它展示给他人欣赏时,发现接的投影仪发出了“Sync is out of range”的提示,进入Windows后无法显示图像,在纯DOS下却可以正常显示。 无奈之下,只得将课件拷贝到他人的机器上,再接到投影仪上使用。回去后仔细—想,根据英语的提示信息,为“信号不同步”(即不在范围之内之意)。而我的投影仪以前使用都没有问题,应该不是投影仪自身的硬件故障。难道是我前一段对显示器调高了刷新率所致?于是重新进入Windows,点击“控 Recently, for the production of multimedia courseware colleagues, just proudly show it to others enjoyment and found that the projector connected to the “Sync is out of range” tips, enter the Windows can not display the image, but under pure DOS can normal display. In desperation, only copy the courseware to someone else’s machine, then use the projector. After going back carefully - think, according to the English message, “signal is out of sync” (ie not within the scope of the meaning). My projector used to have no problem, it should not be the projector’s own hardware failure. Is it because my previous paragraph on the monitor increased refresh rate caused? Then re-enter Windows, click on the "control