Monday, 16 April 2018

How to replace the Airport Bluetooth card – Apple MacBook Core Duo – How to remove the case - How to remove the keyboard


Apple MacBook Core Duo
Use a coin to rotate the battery locking screw 90 degrees clockwise. Lift the battery out of the computer.
Remove the three evenly-spaced Phillips screws from along the rear wall of the battery compartment. The screws are captive to the metal memory cover. When replacing the battery casing, use a spudger to re-insert the foam cushioning behind the rear wall for propper battery spacing. Lift up on L-shaped memory cover, slide it to the right, and lift it out of the computer.
Remove the following 3 screws: One 11 mm Phillips #00 in the middle of the case.
Two 14.5 mm Phillips #00. If the screws stick in the case, you can use a magnetized screwdriver to draw them out. The shorter of the three screws goes in the middle. Remove the following 3 screws from the rear wall of the battery compartment: Two 3 mm Phillips #00. (A1181 has three 3 mm screws and one 4 mm.)
One 4 mm Phillips #00 on the right side.
When reinstalling these screws, press gently on the lower case to line up the screw holes.
Remove the two 6 mm Phillips #00 screws from either side of the right wall of the battery compartment (not the ones closest to the battery connector). Remove the four 3 mm indicated Phillips #00 screws from the front wall of the battery compartment. When working from the left, remove the 2nd, 4th, 7th and 9th screw.
Remove the following 4 screws from the back of the computer: Two 7 mm shouldered Phillips on the far sides.
Two 10.5 mm Phillips toward the center.
Do not over-tighten these; you can cause the case to distort.
Remove the two 5.2 mm shouldered Phillips #00 screws from the optical side of the computer. It is not necessary to remove the similar screws on the other side of the computer.
Starting near the display and working around to the front of the computer, pry up on the upper case. It is held with clips on the right above the optical drive. These will release with some firm lifting pressure. Be careful when prying up the upper case. It's very easy to slice open a fingertip and thus provide the blood sacrifice the Mac gods sometimes require of those who insist on doing their own repairs. There's a trackpad and keyboard ribbon connecting the upper case to the logic board, so don't pull the upper case off entirely just yet. If you have trouble getting the clips to release, be careful that you are not prying the plastic top of the upper case away from its metal frame.
While holding up the upper case (from the bottom or the top), use a spudger to pry up the orange trackpad and keyboard cable from its connector.
Take care to pry between the black socket and the white connector. You might have to pry on both sides for it to release properly.
Do not pry from the bottom or the top, but from the sides.
Disconnect the two antenna cables from the Airport card on the left side of the computer. Remove the following 2 screws from the Airport card: One 3 mm Phillips from the left side.
One 8 mm Phillips from the right side.
Grasp the Airport card at its top and slide it toward the screen and out of he computer.

LG 52LG50FD, 52LG50FD-SA-Service adjustments-service mode entry-white balance adjustment-ADC component 1 RGB adjustment and more

  These adjustments are similar to 42LB7DF Because this is not a hot chassis, it is not necessary to use an isolation transformer. However...