Sunday, 30 September 2018

HP 650 Notebook PC - Disassembling procedure – How to remove the keyboard – How to remove the wireless less module


HP 650 Notebook PC: DISASSEMBLING PROCEDURE 
How to remove Battery
Before disassembling the computer, 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 battery:
1. Turn the computer upside down on a flat surface.
2. Slide the battery release latch (1) to release the battery.
3. Pivot the front edge of the battery (2) up and back.
4. Remove the battery (3) from the computer.
How to remove Memory module
Before removing the memory 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 battery
Remove the memory module:
1. Loosen the captive screw (1) that secures the memory module/wireless module compartment cover to the computer.
2. Lift the rear edge of the memory module/wireless module compartment cover (2) up and forward until it rests at an angle.
3. Remove the memory module/wireless module compartment cover (3) by sliding it away from the computer at an angle. The memory module/wireless module compartment cover is available in the Cover Kit, spare part number 686272-001.
4. Spread the retaining tabs (1) on each side of the memory module slot to release the memory module. (The memory module tilts up.)
5. Remove the memory module (2) by pulling it 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 battery
5. Remove the memory module/wireless module compartment cover 
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 screw (2) that secures the WLAN module to the system board. (The WLAN module tilts up.)
3. Remove the WLAN module by pulling the module away from the slot at an angle (3).
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 battery
5. Remove the memory module/wireless module compartment cover
Remove the keyboard:
1. Remove the Phillips PM2.5×4.0 screw that secures the keyboard to the computer.
2. Rest and secure the computer on its left side.
3. Partially open the computer.
4. Insert a screw driver 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. Turn the computer right-side up with the front toward you.
6. Lift the rear edge of the keyboard (1), and then swing the keyboard up and forward (2) until it rests upside down on the palm rest.
7. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached, and then disconnect the keyboard cable (2) from the system board.
8. Remove the keyboard (3).


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...