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Hi please I need your help where is the lcd backlight light fuse on this board macbook air A1237 2008?
When power on I can ear boot sound but lcd have black screen I bought new lcd but it's the same blackscreen.
But on the external monitor it works fine.
How can I fix it?
Best kinds
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Drickko , this model does not have a direct backlight fuse. There is a fuse in the video circuitry that you can check with a multimeter for continuity. It is reference designator F9404, it is a 0.5AMP-13.2V SMD fuse. Location is shown on the images attached. You may have some real issues with the backlight driver. Let us know what you capabilities are to check those parts. You will have to have working knowledge of a multimeter and know how to solder. Preferably hot air soldering.
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Hi thank you for reply.
The serial number is W88157N951 (is the serial written on the case bottom) EMC number is 2142 and on the board Apple 820-2179 2007 HF/e1 other number near a chip AT&S 5007 M SH94V-0 06 Q rev c
I have hot air station, multimeter and soldering iron.
With a multimeter there is continuity between the both extremity of this fuse you shown on the picture it's the same board that you shown on the pic.
How can fix it?
Best regards.
Yes it is the same board. Thank you for verifying the numbers. If you have continuity on that point, it is not that fuse. You may have issues with your LED driver or your LCD panel itself
Thank you for help.
What is the led driver? Where is location on this board?
What I have to do?
Best regards.
Drickko do you find the location of LED driveron the LCD panel?
Hi there, i have the same problem with my mabook air. Where can i find the fuse F9404, and is there any tutorial to change?
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2 Kommentare
What are the last four digits of your serial number. This will help to properly identify your computer and your logic board.
von oldturkey03
I have the same problem. With same symptoms. What was the fix?
von Andy Kopac