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当前版本: oldturkey03 ,

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[https://www.ifixit.com/User/2551693/Facundo+Panizza|'''++Facundo Panizza++''']  you do want to go ahead and check the parts on your board. You need to get to the logicboard so follow this guide to get there.Use this guide [guide|56210] for that. Check the board and see if it has an 820-XXXX number on it. this is important since there are a few variations. Take some good pictures of your board etc. and post those with your question. That will allow us to see what you see. Use this guide https://www.ifixit.com/Guide/Adding+images+to+an+existing+question/21499# for that. Check the display cable to ensure that it is properly seated and that the connector is not showing any damage on the pins. Then you want to start by checking the backlight fuse for continuity and check if you have power going to it. This will be tricky since you are going to power the computer on. Do not shorten other components out while testing it. Let us know what you find.
[https://www.ifixit.com/User/2551693/Facundo+Panizza|'''++Facundo Panizza++''']  you do want to go ahead and check the parts on your board. You need to get to the logicboard so follow this guide to get there.Use this guide [guide|56210] for that. Check the board and see if it has an 820-XXXX number on it. this is important since there are a few variations. Take some good pictures of your board etc. and post those with your question. That will allow us to see what you see. Use this guide https://www.ifixit.com/Guide/Adding+images+to+an+existing+question/21499# for that. Check the display cable to ensure that it is properly seated and that the connector is not showing any damage on the pins. Then you want to start by checking the backlight fuse for continuity and check if you have power going to it. This will be tricky since you are going to power the computer on. Do not shorten other components out while testing it. Let us know what you find.
 
[image|1484035]
 
[image|1484037]
 
If unsure of doing any of this contact the experts @reecee and @tcrs_circuit to see what their take is on this and if they can help you further.

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编辑: oldturkey03 ,

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[https://www.ifixit.com/User/2551693/Facundo+Panizza|'''++Facundo Panizza++''']  you do want to go ahead and check the parts on your board. You need to get to the logicboard so follow this guide to get there.Use this guide [guide|56210] for that. Check the board and see if it has an 820-XXXX number on it. this is important since there are a few variations. Take some good pictures of your board etc. and post those with your question. That will allow us to see what you see. Check the display cable to ensure that it is properly seated and that the connector is not showing any damage on the pins. Then you want to start by checking the backlight fuse for continuity and check if you have power going to it. This will be tricky since you are going to power the computer on. Do not shorten other components out while testing it. Let us know what you find.
 
[image|1484035]
 
[image|1484037]
 
If unsure of doing any of this contact the experts @reecee and @tcrs_circuit to see what their take is on this and if they can help you further.

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原帖由: oldturkey03 ,

文本:

[https://www.ifixit.com/User/2551693/Facundo+Panizza|'''++Facundo Panizza++''']   you do want to go ahead and check the parts on your board. You need to get to the logicboard so follow this guide to get there.Use this guide [guide|56210] for that. Check the board and see if it has an 820-XXXX number on it. this is important since there are a few variations. Take some good pictures of your board etc.  and post those with your question. That will allow us to see what you see. Check the display cable to ensure that it is properly seated and that the connector is not showing any damage on the pins. Then you want to start by checking the backlight fuse for continuity and check if you have power going to it. This will be tricky since you are going to power the computer on. Do not shorten other components out while testing it. Let us know what you find.

[image|1484035]

[image|1484037]

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open