The third product is just a standard four -pin S-Video S-Video output, with projectors and other video terminal connected directly connected with the image if you want to RCA terminals on the projector , you must use special conversion head synthesis RCA terminal signal.

 

    The fourth category Product fake four -pin S-Video output port , and its bright color signal output with a standard four-pin S-Video is not the same as the projector 's S-Video and other video terminal connected directly may appear colorless or no image I saw the interference fringes between such phenomena . Such VOD suppliers also comes with a special adapter, after the projector and other video terminals RCA terminal connection to work properly.

 

    More recent production of karaoke machines , home appliances, the interface is very similar with DVD , less connected with the problem .

 

    In summary, the projector and karaoke machines must be connected with the correct understanding of the role of various types of interfaces , multi seek technical support from suppliers , so that the signal transmitted correctly and match , will have a good sound effect diagram .

 

Dust maintenance tips

 

    The projector is a need to maintain electrical , as there is no openings for several years may not appear like TV products . General maintenance is dust and lamp replacement . After hundreds of hours of use of the projector , the image yellowed, brightness down , the lack of layering, so the vacuum is due in the optics. On the projection screen , Zhengxintai eccentric Fresnel lens , condenser easiest dust, followed by the lens , and to screen and Zhengxintai eccentric Fresnel lens for imaging the greatest impact , the tip large dust particles on the screen also cast there will be a dark spot , very loud .

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