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Need help to identify if the screen cable order is corrected linked.

TLDR:

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The issue is after the back light has been burnt, I need to weld them to alternative point by jumpping wire. Am I linked the cable order correct? or incorrect in some links like the graph showing below?

(Also I am not confident for 1-10, the link 5 maybe also wrong since it does say ‘not connected‘ in the boardview.)

Long story: I splitted a cup of water on the top left corner and watched the screen flashed into white and going off in under 0.1s. I think the screen may burnt.

After checking the logic board I found the burt area like the image shows, the two red line area is together the back light. So until now I only can try to weld them to an alternative point, if it does not work it means the screen is burnt as well: It is no worth to repair if so.

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Not sure why you are trying to emulate the LVDS cable instead of just replacing it! 13” MacBook/Pro LVDS Display Cable, Apple P/N 661-4820 and here’s the logic board connector LVDS Display Connector (30-pin)

I would first start off replacing it, hopefully you haven’t shorted out any of the lines are you could damage the logic board. If you damaged the logic board connector you can replace it

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Thanks, but 1. I dont have sufficient tools to do connector welding. 2. The logic board is partially damaged, connector burnt (left in the img), cable burnt (right in the img); So only change connector will not save it. And change them all will cost a lot. That is the reason I just want to make jumping wire.

I still need to ensure that the 2 connected capacitance with backlight wire is not damanged. As you can see the board is burnt and board copper has been exposed.

von

Then I can just jump wire from 21 and 22 directly to the capacitor

von

@warekit - I really don't what to tell you as you've gone way beyond what I would do or even how I would go about fixing something like this.

While not easy you could pull the connector off with a simple iron. Take a small strip of solder-wick across the connector pins and flooding it with solder so all of the pins are all heated at once. then you should be able to pull it off so you can replace it.

Here I would strip back the area of the components so I could test the traces out for shorts and making any patches as needed. Then replacing or reuse the components as needed.

I wouldn't try to do what you are doing as you just can't get the wires in such a tight space. If you needed to replace a solder pad or a trace I would use copper trace foil or enamel coated wire. If I need to insulate the wire I would use spaghetti tubing and UV board paint to restore the covering.

Also consider the amount of labor (time) this will require to fix Vs just replacing the logic board as well as the probability of it working as well as reliably after you return it to the owner.

von

@danj Thanks for the detail and really appreciated. However, the owner is me lolz. Then even I fixed the things you have mentioned. I still need to replace the screen cable, tear down the screen glass and buy new screen cable, just because the cable pins has burnt. not only the connector on board. :(

So the easiest way for me is to jump wire from the screen cable to the capacitor.

von

@warekit - I still think you are going to far.

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Vincent wird auf ewig dankbar sein.
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