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230问答网 > 海尔电视机开机时图像正常然后图像逐渐变暗这是什么问题啊

海尔电视机开机时图像正常然后图像逐渐变暗这是什么问题啊

是不是显像管老化了啊

2025-03-26 22:27:52

推荐回答（3个）

回答1：

应当不是显象管老化，显象管老化的显著特征是；亮度底对比度若。从你的叙述看，目前你的电视不具备这个特征。
亮度逐渐降低故障点一般在灯丝电路、视放电路、亮度通道。
估计你是用户，建议送修。

回答2：

应该不是显像管老化了,可能是内部接触不好,你拍打一下试一下,

回答3：

高压包加速极漏电了,换个新的就好了

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