故障现象:图像暗淡,亮度对比度开到最大时才能看到极淡的图像,且出现字符拖尾,但伴音正常。此机已被两位修理员判定为显像管老化,用户怀着试试看的心态转送我处,并留言即使是修不好,也不怪你这位老师。根据故障现象,检查N201(TA8759)(48)脚(亮度控制)电压和(59)脚(对比度控制)电压均正常;(57)脚(黑电 Symptoms: dark images, brightness contrast to the maximum when you can see a very light image, and the character trailing, but the sound is normal. This machine has been the two mechanics judged as CRT aging, the user with the attitude of trying to refer to my office, and leave a message even if it is not well, do not blame you the teacher. Check the voltage of N201 (TA8759) (48) feet (brightness control) and (59) feet (contrast control)