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A faulty LED driver board may cause backlight issues. Use this guide to replace your LED driver board.
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Use your fingers to push both battery release tabs away from the battery, and lift the battery out of the computer.
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Remove the three identical 2mm Phillips screws from the memory door.
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Lift the memory door up enough to grip it and slide it toward you, pulling it away from the casing.
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Remove the two 2.8 mm Phillips screws in the battery compartment near the latch.
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Lift up at the rear of the case and work your fingers along the sides, freeing the case as you go. Once you have freed the sides, you may need to rock the case up and down to free the front of the upper case.
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There are four plastic clips above the DVD slot, and another above and to the left of the IR sensor. These clips can be very difficult to disengage without prying. They can also be difficult to re-engage during reassembly.
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Disconnect the two or three antenna cables attached to the Airport Extreme card. Depending on your model, one of the three cables may be unused and capped with a black shrink tube.
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Support the display with one hand while removing the following screws:
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One 9.5 mm silver T6 Torx screw with threads on only 3 mm of the shaft on the inside of the display hinges.
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One 9.5 mm silver T6 Torx screw with threads on the entire shaft on the outside of the left hinge.
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One 9.2 mm full thread T6 Torx screw securing the iSight cable ground loop to the fan.
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Remove the 4.5 mm Phillips screws from the lower left and right corners of the display (two screws total). These screws have a .8 mm thick head.
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Insert the flat end of a spudger perpendicular to the face of the display between the plastic strip attached to the rear bezel and the front bezel.
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With the spudger still inserted, rotate it away from the display to separate the front and rear bezels.
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Work along the right edge of the display until the rear bezel is evenly separated from the front bezel.
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Insert the flat end of a spudger into the gap between the rear display bezel and the clutch cover.
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Twist the spudger to separate the lower edge of the rear display bezel from the clutch cover.
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Work along the lower edge of the rear bezel until it is evenly separated from the clutch cover.
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Slightly lift the lower edge of the display and pull it away from the rear display bezel.
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Go here for the guide to continue replacing the screen: MacBook Pro 15" Core 2 Duo Models A1226 and A1260 LCD Panel Replacement
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Use the tip of a spudger to lift the LED driver board out of the clutch cover.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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3Kılavuz Yorumları
just wanted to point out that this in fact isn't the LED driver. The led driver exists on the left side of the logic board, and I can prove it thru the logic board schematic. The LED Driver Board you are describing is merely a dc-to-dc board that combines the voltages from the LED driver and the LVDS, allowing the lcd to see one voltage. This allows the rom to communicate and accept the display. Ask anyone who bought the wrong lcd for one of these machine, this is what causes the black screen.
Hi everyone,
Everything went fine during the replacement, but now i have the opposite problem: as soon as i but the battery back, the screen lighted up full white. Same when i plug the mac without the battery, and it apparently won't start...
Clear tutorial. Done in about 45min.
Didnt fix my dim screen issue though.
In my case, replacing the left I/O board solved the problem.
