跳转到主内容

Repair documentation and service information for Hisense televisions.

72 个问题 查看全部

Heard a loud pop then lost picture.

I have a Hisense 55K23DGW, We were watching TV when the left ~1/3 of the screen when darker, a minute later, we heard a loud pop and lost the entire picture completely but we still had sound. What could be the reason behind the pop and loss of picture?

回答此问题 我也有这个问题

这是一个好问题吗?

得分 0

评论:

Could you take the TV apart and take pictures of the circuit boards? 在已经存在的问题里加入图片

完成的

添加一条评论

1个答案

It is either the backlight LEDs or the power supply, especially since part of the screen went dark a bit before the pop.
The power supply board is responsible for driving the backlight LEDs.
If you have a very powerful flashlight, try shining it on the screen and seeing if there is still a picture (something with lots of white works well, since darker colors are hard to see without a backlight).
Since you still have sound, that means that the low voltage section of the TV is still functioning.

If you do still have picture, you should try opening the TV and looking for obvious damage on the orange(ish) colored board that should be visible. Please make sure to not touch that board, too. It carries high voltage AC and DC, and will still have power left in the large capacitors on it after it is turned off. Things to look for would be scorch marks, cracked/burned components, and bloated capacitors.
If you see any of those things, the board is definitely bad. If there aren’t any of those, there’s still a chance it’s bad, but it could be the LEDs too.

这个答案有帮助吗?

得分 0
添加一条评论

添加你的答案

Derek 将永远感激不已
浏览统计数据:

过去的24小时: 1

过去的7天: 1

过去的30天: 5

总计 29