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单色高分辨显示器(HERCULES)品牌繁杂,关键元件——行输出变压器(FBT)损坏后,由于显示器对FBT的频率响应有特殊的要求,不同厂家的单色高分显示器线路及直流工作电压不尽相同,因此,FBT通常不可直接替换.笔者分析了多种单色高分显示器线路原理,大多数FBT外围线路原理都比较相似,只需将FBT引脚线路局部改动并对个别元件进行调整,各种高分单显FBT的间接替代是不难实现的.下面是用广州产的南虹牌14英寸高分单显行输出变压器JBF—1428替代美国原产KINGSUN14英寸高分单显,以及日本原产FUJITECH高分单显行输出变压器的两个例子.
Monochrome high resolution display (HERCULES) brand complex, the key component - line output transformer (FBT) damaged, due to the display on the FBT frequency response has special requirements, different manufacturers monochrome high score display lines and DC operating voltage is not So the FBT usually can not be directly replaced.The author analyzes the principle of a variety of monochrome high score display lines, most of the principles of FBT peripheral lines are more similar, just the local FBT pin line changes and individual components to be adjusted, The following is the use of Guangzhou produced Nanhong brand 14-inch high single-line output transformer JBF-1428 instead of the United States native KINGSUN 14-inch high single significant, and Japan Original FUJITECH high score single display output transformer two examples.