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9.故障现象:行失步,有啸叫声,屏幕上伴随着有放射形或闪电形闪光.故障原因:常见耦合电容8C_(23)(见上期附图)击穿短路.分析:这是行频过低形成行振荡瞬间停振的现象.8C23是交流耦合隔直流电容.
9. Symptoms: line out of step, there is whistle, the screen accompanied by a radial or lightning-shaped flash. Fault causes: Common coupling capacitor 8C_ (23) (see previous issue) breakdown short circuit. Line frequency is too low to form a line oscillation oscillation phenomenon instantly .C23 is AC-coupled DC blocking capacitor.