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

HP ELITEBOOK 840 G2 - HP ELITEBOOK 740 G2 - HP ZBOOK 14: DISASSEMBLING PROCEDURE

HP EliteBook 840 G2 - HP EliteBook 740 G2 - HP ZBook 14: DISASSEMBLING PROCEDURE


HP EliteBook 840 G2 - HP EliteBook 740 G2 - HP ZBook 14  – Disassembling procedure – How to remove the battery – How to remove the keyboard – how to remove the solid state driver
How to remove the Service cover
Before removing the service cover, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
Remove the service cover:
1. Slide the service cover release latch (1).
2. Remove the optional security screw (2) (if it is being used).
3. Slide the release latch again (3) to release the service cover.
4. Slide the service cover toward the front of the computer (4).
5. Lift the service cover (5) and remove it.
How to remove Battery
Before removing the battery, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover (see Service cover on page 57).
Remove the battery:
1. Slide the battery release latches (1) to the unlock position.
2. Left the rear edge of the battery (2) until it rests at an angle.
3. Remove the battery (3).
How to remove Hard drive
Before removing the hard drive, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover (see Service cover on page 57).
5. Remove the battery (see Battery on page 59).
Remove the hard drive:
1. Loosen the 4 hard drive retention screws (1).
2. Release the hard drive (2) by sliding it forward.
3. Lift the hard drive (3) and remove it.
How to remove Solid-state drive
Before removing the solid-state drive, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover (see Service cover on page 57).
5. Remove the battery (see Battery on page 59).
Remove the solid-state drive:
1. Remove the Phillips PM2.0×3.0 screw (1) that secures the solid-state drive to the system board. (The solid-state drive tilts up.)
2. Remove the solid-state drive (3) by pulling the drive away from the slot at an angle.
How to remove WWAN module
Before removing the WWAN module, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover
5. Remove the battery
Remove the WWAN module:
1. Disconnect the WWAN antenna cables (1) from the terminals on the WWAN module.
2. Remove the Phillips PM2.0×3.0 screw (2) that secures the WWAN module to the system board. (The WWAN module tilts up.)
3. Remove the WWAN module (3) by pulling the module away from the slot at an angle.
How to remove WLAN module
Before removing the WLAN module, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover
5. Remove the battery
Remove the WLAN module:
1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
2. Remove the Phillips PM2.0×3.0 screws (2) that secure the WLAN module to the base enclosure. (The WLAN module tilts up.)
3. Remove the WLAN module (3) by pulling the module away from the slot at an angle.
How to remove Keyboard
Before removing the keyboard, follow these steps:
1. Turn off the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect the power from the computer by unplugging the power cord from the computer.
3. Disconnect all external devices from the computer.
4. Remove the service cover
5. Remove the battery
Remove the keyboard:
1. Loosen the two Phillips captive screws that secure the keyboard to the computer.
2. Partially open the computer.
3. Rest and secure the computer on its left side.
4. Insert a keyboard release tool or similar thin tool into the keyboard release hole, and then press on the back of the keyboard until the keyboard disengages from the computer.
5. Position the computer right-side up with the front toward you.
6. Lift the rear edge of the keyboard upward.
7. Swing the keyboard (1) up and forward until it rests upside down on the palm rest.
8. Release the zero insertion force (ZIF) connector (2) to which the keyboard cable is attached, and then disconnect the keyboard cable from the system board.
9. Release the ZIF connector (3) to which the pointing stick cable is attached, and then disconnect the pointing stick cable from the system board.
10. Release the ZIF connector (4) to which the backlight cable is attached, and then disconnect the backlight cable from the system board.
11. Remove the keyboard (5)
Click on the picture to zoom