@chuandongo43020 iFixit does not stock parts for this.
It is absolutely possible that the LCD driver boards may have gotten shorted out. We really would need to see your boards etc. so that we at at least can try to help you out further. Post some good images of your board, cables etc. with your Question. That will allow us to see what you see.
In the meantime you could download the [document|35943] and follow the troubleshooting flowcharts to determine if you can isolate the issue.
The importance on ribbon cables is the width of the contacts, the distance between contacts, the amount of contacts and the thickness of the cable.
[guide|21499]
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=== Update (05/26/24) ===
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@chuandonghound check the voltage on Fuse F1 on your LED driver board and check it for continuity. Also, consider checking the back side of those boards, there are vital components as well. The "crackling" noise could be normal. Those are the transformers that produce the power for your backlights. Looks like your TV uses CCFL backlights. You are right about your cables Do not use those! you will need new ones. There is no way you can do a good field testing of your TV with those cables. Replace those and then recheck your TV. Main suspect after your cables is your LED driver board.
@chuandongo43020 iFixit does not stock parts for this.
It is absolutely possible that the LCD driver boards may have gotten shorted out. We really would need to see your boards etc. so that we at at least can try to help you out further. Post some good images of your board, cables etc. with your Question. That will allow us to see what you see.
In the meantime you could download the [document|35943] and follow the troubleshooting flowcharts to determine if you can isolate the issue.
+
The importance on ribbon cables is the width of the contacts, the distance between contacts, the amount of contacts and the thickness of the cable.
@chuandongo43020 iFixit does not stock parts for this.
It is absolutely possible that the LCD driver boards may have gotten shorted out. We really would need to see your boards etc. so that we at at least can try to help you out further. Post some good images of your board, cables etc. with your Question. That will allow us to see what you see.
In the meantime you could download the [document|35943] and follow the troubleshooting flowcharts to determine if you can isolate the issue.
[guide|21499]