REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Monday, 8 April 2019

APPLE MACBOOK PRO 17HOW TO REPLACE THE KEYBOARD OF MACBOOK

How to replace the keyboard of Macbook – Apple MacBook Pro 17


Apple MacBook Pro 17
Use your fingers to push both battery release tabs away from the battery and lift the battery out of the computer.
Remove the four identical Phillips 3.4 mm screws from the memory door. These screws have 4 mm diameter heads rather than the 3 mm heads on the body screws.
Lift the memory door up enough to get a grip on it, and slide it toward you, pulling it away from the casing. Remove the three Phillips screws in the battery compartment near the latch. Apple was nice enough to tilt these screws at a slight angle to make them easier to remove. On the A1261 these screws have 4 mm diameter heads rather than the 3 mm heads on the body screws.
Remove the following six screws: Two 14.5 mm T6 Torx screws on either side of the RAM slot.
Four 3.4 mm Phillips screws along the hinge.
Remove the four 3.4 mm Phillips screws on the port side of the computer.
Rotate the computer 90 degrees and remove the two Phillips screws from the rear of the computer. Rotate the computer 90 degrees again and remove the four Phillips screws from the side of the computer.
Do not yank the upper case off quickly. The case is attached to the logic board via a ribbon cable. Lift up the back 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. Disconnect the trackpad and keyboard ribbon cable from the logic board. Remove the upper case.
Use a spudger to pry up the translucent plastic sheath covering the keyboard connector. Use the tip of a spudger to flip up the black plastic flaps locking down the keyboard and keyboard backlight ribbon cables.
Slide the orange keyboard backlight ribbon out of its connector. Peel up the orange tape covering the keyboard backlight connector.
Use the tip of a spudger to flip up the brown plastic flap locking down the keyboard backlight ribbon cable. Use a spudger or your finger to slide the keyboard backlight ribbon out of its connector.
Carefully peel up the orange ribbon cable which carries the power and sleep signals. Peel up the two black protective sheaths on the bottom of the keyboard. It is not necessary to fully remove these, but only to peel them back enough to access the screws beneath.
Remove the ten identical Phillips screws attaching the keyboard to the casing. The keyboard on A1261 models is secured with twelve screws. Their locations are shown in the second picture.
There are four locking tabs along the back edge of the keyboard holding it in place. These tabs must be straightened before you can remove the keyboard. The keyboard on A1261 models has five locking tabs. Their locations are shown in the second picture.
The first frame shows a tab in the "locked" position and the second frame shows the same tab in the "unlocked" position. Use needlenose pliers or a spudger to bend each of the four tabs so that they are all in the "unlocked" position.
Slide the keyboard ribbon out of its connector. If the keyboard ribbon won't slide out, make sure that the black plastic flap holding the ribbon in place is vertical.
Place the upper casing on its edge and use a spudger to push the keyboard away from the casing, poking the spudger through the central keyboard screw hole. Grasp the keyboard as it separates from the casing. Maintaining your hold on the keyboard, lay the casing flat and gently bow the keyboard until the two tabs on either side of the keyboard come free. Slide the keyboard away from the trackpad and out of the upper case.