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例1康佳T2110型彩电故障现象:开机约30min后才逐步出现光栅,无彩色。分析与检修:用万用表测两只4700pF/2kV的高压瓷片逆程电容容量正常,但其表针不能稳定,用电吹风对其加热,发现容量逐渐下降,当加热至电容外表稍感烫手时,测其容量不足100pF。更换电容(两只电容容量之和为6600pF
Example 1 Konka T2110-type TV failure phenomenon: about 30min after turning on gradually grating, no color. Analysis and overhaul: measured with a multimeter two 4700pF / 2kV high-voltage ceramic reverse capacitor capacity is normal, but the hands can not be stable, with a hair dryer to heat it and found that the capacity gradually decreased, when heated to the capacitor appearance slightly hot, Measuring its capacity less than 100pF. Replace the capacitor (the sum of the two capacitors is 6600pF