三洋投影仪(国外英文资料).docVIP

三洋投影仪(国外英文资料) Fault one: the projector on the VCD, Video display, such as the Video signal can normal projection, but the RGB signal on switch to boot, after entering the Windows display under DOS and normal projection Reason: computer high refresh rate adjustment or adjust the resolution of high, is beyond the scope of the normal work of the projector, the performance of the two or three years ago to buy more likely to lower the projector on. Solution: dispatch PC refresh rate to 75 hz, would reduce the resolution of the computer, can make the best job in its largest projector on physical output resolution (level 1) lower than the maximum input resolution, at this point shows the best effect. Failure 2: the projector is automatically turned off after a period of time. After a few minutes, the projector will be turned on again Reason 1: the internal heat protection circuit is activated by the internal heat dissipation of the vent. Solution 1: cleaning the projector inlet strainer mesh, guarantee in the outlet of the projector, without sunscreen regularly to clean strainer mesh of the projector, and keep the projector environment clean. Reason 2: high environmental temperature causes internal heat protection circuit to start. Solution 2: in the projection room equipped with air conditioning, fan for cooling, cooling of equipment, projectors, condole top installation is to ensure that the upper space of the projection of the classroom can normal cooling. Reason 3: the device on the power board is defective. Solution 3: repair or replace the power board. Failure 3: projector projection is fuzzy Reason 1: the projector is not in focus. Solution 1: remote control or manual adjustment of the projector. Reason 2: there is too much dust in the lens of the projector or the dust screen. Solution 2: clean the lens of the projector, filter dust net, ask the professional to deal with the dust inside the projector. Reason 3: the projectors resolution is too high Solution 3: redu