Can faulty iPad damage LCD panel

Question

iPad 7 Wi-Fi

2019년 9월 25일에 출시된 7세대 iPad는 32 또는 128GB 모델로 제공됩니다. 모델 번호 A2197.

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Chris Reader @mclarenchris

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게시됨: 2022년 6월 20일

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Can faulty iPad damage LCD panel

Hi, I have purchased a non functioning iPad for parts, as I wanted the LCD panel and digitiser and was told the LCD was still good.

After removing these and going to install in another iPad I discovered the LCD was completely dead. This was a little annoying, but I am now wondering if the iPad is still good.

If I was to put a new LCD in to test it, is there any chance a faulty iPad could damage this new LCD? I am thinking maybe a faulty board could send too much power and kill the panel?

If the answer is yes, can the connector be tested easily by a professional without installing a panel? Or is there a simple way to do this myself with a multimeter?

Thanks

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Hi, did you disconnect the Battery before you disconnected or connected the LCD? If not the Backlight filter or coil could now be broken.

Spaeder 의 2022년 6월 20일

Hi, yes I am always very careful about that.

I can see a repair has been done previously, it looks like maybe a charge port replacement, so am thinking either they weren't careful when disconnecting/connecting LCD, or board got damaged which may have in turn damaged LCD?

Chris Reader 의 2022년 6월 20일

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Hi, did you disconnect the Battery before you disconnected or connected the LCD? If not the Backlight filter or coil could now be broken. — Spaeder
Hi, yes I am always very careful about that.

I can see a repair has been done previously, it looks like maybe a charge port replacement, so am thinking either they weren't careful when disconnecting/connecting LCD, or board got damaged which may have in turn damaged LCD? — Chris Reader

HelloMacOS @hellomacos 평판: 27.1k 207 30 40 · Answer 1 · 2022-06-20T11:49:15-07:00

HelloMacOS @hellomacos

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게시됨: 2022년 6월 20일

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Hi

I know where you are coming from with your question I had it a while too

It really depends what the issue is with the iPad

For example:it isn’t going to damage the screen if it’s a speaker issue.Bit bare in mind that just a example

If you can roughy find the issue that will give a good indication of weather it’s good or not!

If you need help finding the issue please don’t hesitate to ask

Thanks:-)

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댓글 4개:

Hi, thanks for your answer.

That is the problem I have, I have no way to find the issue with iPad because I don't know if I should risk installing a new LCD so that I can test it 🤷‍♂️

Chris Reader 의 2022년 6월 21일

@mclarenchris

What I would do is check the board for anything obvious like corrosion (looks like blue white green stuff)

Or anything that’s burned

If there is none of that ,me personally I would try it because I have done it 100s of times without any problems

But it’s not my decision to make,it’s up to you:-)

HelloMacOS 의 2022년 6월 21일

Thanks. I will inspect board and then decide.

Maybe I will sit on it for a while and see if I come by an already damaged but working LCD I could test with.

Chris Reader 의 2022년 6월 21일

@mclarenchris

Go for it^_^