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ＣＯＭＰＡＱＳＶＧＡ彩显故障一例滕州市张汪镇枣庄局田陈矿韩云增故障现象：屏幕一条横线故障分析与维修：此故障是因为场扫描电路故障所造成的。因手头无图纸，凭经验检修。首先，检查偏转线圈电压，行偏转线圈电压为１７５Ｖ，场偏转线圈电压为０Ｖ。通过检查场供电电...
COMPAQSVGA a case of color fault Teng Wang Zaozhuang Zhang Zaozhuang Bureau Chen Han Han Yun Zeng Fault phenomenon: a horizontal line of screen fault analysis and maintenance: This fault is due to field scan circuit fault caused. Due to the lack of drawings on hand, with experience maintenance. First, check the deflection coil voltage, the line deflection coil voltage is 175V, the field deflection coil voltage is 0V. By checking the field supply ...