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随着电视事业的发展,彩色电视监视器被广泛用于电视台、电教馆的电视制作、演播系统、播出中心等,因此了解彩色电视监视器的工作原理及维修技术显得十分必要,本文针对HITACHI FUJIAN(福日)HFV-1761彩色监视器常见故障实例来分析电路原理、故障原因以及维修方法。一.电源的工作原理 HFV—1761彩色电视监视器的电源为新型自激振荡绝缘型开关稳压电源。能按照輸入交流电压和
With the development of television, color TV monitors are widely used in TV stations, TVH’s TV production, studio systems, broadcast centers, etc. Therefore, it is necessary to understand the working principle and maintenance techniques of color TV monitors. This article aims at HITACHI FUJIAN (Fu-Ri) HFV-1761 color monitor examples of common failures to analyze the circuit theory, causes of failure and maintenance methods. A power supply working principle HFV-1761 color TV monitor power supply for the new self-excited oscillation-type switching power supply. According to the input AC voltage and