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例1长虹DP4388机,光栅不稳定光栅幅度不稳定与电源输出的+B电压不稳定有关,也与行扫描电路有关。检测开关电源输出的125V电压不稳定,且比正常时低,在100V左右摆动。为确
Example 1 Changhong DP4388 machine, unstable grating instability and the power output of the + B voltage instability, but also with the line scan circuit. Detection of switching power supply output of 125V voltage instability, and lower than normal, swinging about 100V. Indeed