【摘 要】
：
河南南阳油田自1986年以来开始安装闭路电视,经1987年联网,1988年进一步延伸,现已发展为能收看7套电视节目,有14000多用户的大型闭路电视网。三年多来的维修实践,我们处理了
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河南南阳油田自1986年以来开始安装闭路电视,经1987年联网,1988年进一步延伸,现已发展为能收看7套电视节目,有14000多用户的大型闭路电视网。三年多来的维修实践,我们处理了一些常见故障。现介绍如下,供维修人员参考。一、画面上出现白带从左至右移动,或者雨刷现象,这就是常说的交互调干扰。这可通过降低放大器输出电平,提高放大器输入电平,减少频道数目,最好用便携式监视器逐一检查直至消除为止。
Since 1986, Henan Nanyang Oilfield has started to install CCTV. After being connected in 1987 and further extended in 1988, Nanyang Oilfield has developed into a large-scale closed-circuit television network capable of watching 7 sets of television programs and more than 14,000 users. More than three years of maintenance practice, we deal with some common failures. Now introduced as follows, for maintenance personnel reference. First, the screen appears leucorrhea move from left to right, or wipers phenomenon, which is often said that the interaction of interference. This can be done by reducing the amplifier output level, increasing the amplifier input level, and reducing the number of channels, preferably by a portable monitor until it is eliminated.
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