Introducción
Screen have no backlight? Replace the inverter.
Herramientas
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Use a coin or spudger to rotate the battery-locking screw 90 degrees clockwise.
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Unscrew the three evenly-spaced Phillips screws from along the rear wall of the battery compartment.
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Remove the following 3 screws:
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One 11 mm Phillips#00 in the middle of the case. (Head: 5mm dia. x .75mm thick)
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Two 14.5 mm Phillips #00 (Head: 5mm dia. x .75mm thick)
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Remove the following 4 screws from the back of the computer:
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The longer screws go on the inside, shorter screws on the outside.
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Two 11 mm Phillips #00, with Shank (2.2mm dia. x 2 mm len.) (Head: 3.2 mm. dia. x .5mm thick)
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Two 7.25 mm Phillips #00, with Shank (2mm dia. x 3.75 mm len.) (Head: 3.2 mm. dia. x .5mm thick)
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Starting near the display and working around to the front of the computer, pry up on the upper case. A plastic opening tool or a medium hard guitar pick may help you to do this.
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While holding up the upper case, pull up the black tab of the silver cable away from its connector.
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While you have the upper case removed, you may want to take the opportunity to remove dust, hair, etc. It's best to use a can of compressed air, though if you use a brush, make sure that its bristles are made of a material (usually animal hair) that doesn't generate static electricity, which can destroy electronics.
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Grasp the white plastic tab attached to the hard drive and pull it to the left, removing the hard drive from the computer.
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Remove the following 3 screws:
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Two 3 mm Phillips near the right speaker.
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One 6 mm Phillips threaded through a hole in a plastic finger above the subwoofer.
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Use a spudger to carefully disconnect the microphone cable from the logic board. You'll want to work from side to side, and slowly wiggle the connector out of its socket.
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Remove the following 2 screws from the right hinge mount:
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One 6 mm Phillips on the left side of the hinge mount.
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One 10 mm Phillips on the right side of the hinge mount.
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For Santa Rosa/Penryn models, see second picture and remove:
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One 3 mm smalller diameter Phillips on the far left.
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One 5.2 mm larger diameter 4.2 mm head Phillips in the middle.
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One 10 mm Phillips from the far right.
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Lift the right hinge mount with the small plastic piece out of the computer.
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Hold the display with one hand while removing the screws from the left hinge mount.
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Remove the following 3 screws from the left hinge mount:
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One 7.2 mm smaller diameter Phillips from the right side.
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One 5.2 mm larger diameter Phillips from the middle.
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One 10 mm Phillips from the left side.
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Lift the left hinge mount with plastic piece out of the computer.
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Check that the cables on the right are not trapped under other cables.
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Use a thin plastic card to release the tabs holding the front display bezel to the display assembly. There are five tabs along the left side of the display bezel.
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Slightly lift the newly-revealed inverter board out of its housing and disconnect the black inverter cable from the left end of the board.
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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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7 Comentarios
Awesome site and awesome guide. This exteneded the life of my MacBook. I can't thank you enough!!!!
For about 3 years I had been dealing with my screen backlight shuting off. I would then dim the screen up and down until I could get it to stay. Sometimes it would work the first time other times I would be doing it for 10 minutes and other times I would give up for a few hours and come back and the screen would be on again. It would also do this sometimes when I opened the laptop at a certain angle or bumped the computer.
Well after these years very annoying behavior, my screen wont turn back on. I can see my desktop when I shine a light on the screen and hear the fan running so I know the computer works fine.
I've tried unpluging the inverter board to see if it was a loose connection, but that didn't work. I tried wiggling it around until the screen turned on and nothing.... Please help!
Is this a problem with my inverter or the inverter cable? Or the backlight cable?
What parts should I buy?
Hi, I've had the same trouble. Today I solved with a spray electronic cleaner :)
19fra71 -
Hi everybody! Last year bought a new inverter, new cable and other stuff and replaced. Problem not solved, screen still turning black. Thinking to get a new display, but today bought spray electronic cleaner, sprayed over the display data cable (https://d3nevzfk7ii3be.cloudfront.net/ig...). Problem &&^&^$^ solved! :) Time: 15 mins, money: 5$. Good tutorial tho! :P
These are a very comprehensive set of instructions and give a really good grand tour of the innards of a MacBook 8. They are also useful for replacing the hard drive or the optical drive.
Couple of hints:
1. Have on hand some canned compressed air - the inside of a laptop is generally quite full of dust and fluff.
2. Also have on hand some contact cleaner spray (do NOT use degreasers/lubricants/anti rust sprays such as RP 7 or WD 50). Contact cleaner sprays generally only contact isopropyl alchohol. It's good to give exposed contacts a bit of a clean - even grease from fingertips can affect conductivity and hence performance. (If possible, use powder free surgical gloves).
3. Make sure you have the right tools (don't skimp - buy the tools set from iFixit). Not using the right spudger on a plug could be the cause of irreparable damage to the circuit board.
(continued next posting)
