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有线电视维护小经验有线电视传输干线由于受外界条件限制，大都采用集中供电型放大器，因传输级数较多，在使用当中干线放大器出现故障时，不便准确查找出故障放大器在哪级。我在维护中将集中供电电源改造为有电流指示的供电器，每级放大器工作时电流均有指示，这样通过电...
Cable TV maintenance experience Due to external conditions, trunk lines are mostly centralized power supply amplifiers. Due to the large number of transmission stages, when the trunk amplifier is in use, it is not convenient to find out exactly where the fault amplifier is. I am in the maintenance of the central power supply will be transformed into a current indicator of the power supply, each stage amplifier current work instructions, so that through the ...