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cai dian te shu gu zhang jian xiu yi li
Author(s): 
Pages: 22
Year: Issue:  6
Journal: Family Electronics

Keyword:  微处理器声表面滤波器公共通道图像干扰天线干扰条纹高频头通路故障检修故障现象;
Abstract: <正> 故障现象:一台韶峰牌SFC47—5遥控彩电,开机时有光栅,无图像无伴音。分析与检修:有光栅无图像无伴音,表明公共通道与微处理器有故障。查图像中放IC各脚工作电压正常。干扰声表面滤波器输出端,屏幕有明显干扰条纹。干扰天线,屏幕出现亮点闪动,表明公共通路基本正
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