今修了台长虹彩电，机型为H2121K，故障现象为水平一条亮线，打开机盖，发现里面的灰尘挺厚，除尘后，发现是虚焊，补焊后开机试机，满光栅，就是有色斑。更换消磁电阻后，蓝屏正常，插上有线电视发现图像发绿偏黄（少红），查遍视放板没有问题，怀疑数据出了问题，重写了一数据块装上，没有改善。就给灯丝通电，测3个极的电阻，发现是显像管老化，一时不知怎么办，后想想如果把R\G枪对掉不知会是什么情况，就对调做试验，发现颜色说不出的难受（看了不舒服），还是调过来，结果颜色正常了，就是在亮暗明显变化时（突变）有点绿色拉丝，总体上没什么问题，不知是什么原因，难道是把R\G对调后把显像管给复活了。作者: converse01 时间: 2008-8-27 13:45 标题: www.power4leveling.com There is wow gold for sale online
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