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故障现象:通电开机,有开机画面,能播放,但图像有些背景暗的地方就看不清楚。故障原因判断:此故障部位大部分出在数字视频总线上。
Symptom: power boot, boot screen, can play, but the image of some dark places can not see clearly. Judgment of the cause of the malfunction: Most of the fault part is on the digital video bus.