HP Spectre 13 Pro Ultrabook – Disassembling procedure – How to remove the bottom cover – How to remove the SSD – How to remove the display unit

HP Spectre 13 Pro Ultrabook:  DISASSEMBLING PROCEDURE 

How to remove Bottom cover

Before removing the bottom 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 bottom cover:
1. Position the computer upside-down.
2. Remove the 8 Torx T5M2.0×3.0 screws that secure the bottom cover to the computer.
3. Lift the bottom cover off the computer 

How to remove Solid-state drive (SSD)

Before removing the solid-state drive module, follow these steps:
1. Shut down 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 all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the bottom cover
5. Disconnect the battery.

Remove the solid-state drive:

1. Remove the Phillips PM2.0×3.0 screw that secures the drive to the computer. The rear of the drive pops up.

2. Pull the drive out of the socket 

How to remove Display assembly

Before removing the display assembly, 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 bottom cover
5. Disconnect the battery.

6. Disconnect the antennas from the WLAN module 

Remove the display assembly:
1. Remove the Mylar tape from atop display cable connector 

2. Disconnect the display panel cable and the control cable from the system board.

3. Remove the 7 Phillips PM2.5×4.0 screws that secure the display assembly to the computer.

4. Rotate the computer upward to open the display hinges, and then separate the display from the computer 

5. If it is necessary to remove the clutch cover or the display hinges:

a. Remove the clutch cover (the plastic piece on the bottom of the display) by pulling it straight up to disengage it 

b. Remove the 4 Phillips PM2.5×5.0 screws (from each hinge) that secure the hinges to the display.
c. Remove the antennas and the control cable from the left hinge 

d. Remove the display cable from the right hinge (3) and the control cable from the left hinge
e. Lift the hinges from the display 

Acer Iconia B1-711 – Disassembling procedure - How to remove the battery – How to remove the case

Acer Iconia B1-711:  DISASSEMBLING PROCEDURE 

Switch-off the tablet.
Remove any SIM and/or Memory Card.
Start opening near to the Volume Up/Down buttons. It's more well to use a plastic opening tool to avoid damaging the cover.
When lifting the cover, be careful not to tear the Loudspeaker cable at the bottom right side.
Disconnect the Loudspeaker cable from the Logic board.

Before doing anything, disconnect the battery.

With a long plastic tool like a spudger, unstick the battery from the metal LCD shield.

Lithium Ion Battery Pack - 3.8V, 2710mAh

Disconnect and remove the Audio Jack Board flex cable.

Unscrew 2x Philips screws
Remove the board with the Audio Jack Connector.

Remove the Audio jack flex cable.

Remove the metal plate which is placed on the camera connector.
Disconnect the camera flex cable.

Remove the camera.

Remove the tape from the microphone.

Disconnect the Microphone wires and remove the Microphone.

Remove the green rubber and disconnect the touch screen flex cable.

Disconnect the 4 coaxial antenna cables (Wi-Fi, GPS, 3G).
Carefully unstuck the metal folio from the LCD display flex cable.
Remove the 3x Phillips screws.

Lift the board from the side of the battery connector and turn it around the display

connector on 360 degrees.
Be careful for the flex cable!
Disconnect the LCD display flex cable.

This is the Logic board

Infocus IN72 – IN74 – IN76 – Infocus projector Led flashing , Color wheel function,How to check the thermal swatch

Infocus IN72 – IN74 – IN76 – Infocus projector Led flashing – Power up the projector without case – Color wheel function – Choking main board voltages – How to check the thermal switch

Power Up with Top Case Removed

Remove the top case and power up the projector to check fan or thermal switch operation. You also do this to check internal voltages and signals, which may require additional projector disassembly. Here's how to prepare the projector for power up with the top case removed.

1. Remove the top case

2. Use vinyl electrical tape or other non-conductive means to hold the safety switch actuator in the depressed (closed) position

LED FLASHING AND CAUSE 

The projector can now be plugged into a power source and powered up.

The projector communicates its status via an LED located on the keypad. When this status LED is green, you know that the projector is working properly. When the status LED is solid red or flashing red, you know there are lamp, power or startup problems. The frequency with which the status indicator blinks red indicates one of several error codes. These error codes provide crucial information about projector malfunctions.

	LED Status
LED flashes green	The projector is starting up after the Power button was pressed, or the projector is shutting down after the Power button was pressed.
LED is solid green	The projector is ready to light the lamp when the Power button is pressed. Or the lamp is lit and the projector is operating properly.
LED flashes red one (1) time	The lamp won't strike after five (5) attempts. Check the lamp and lamp door installations for loose connections.
LED flashes red two (2) times	The lamp counter hours have exceeded lamp life hours. Replace the lamp and reset the lamp hours counter.
LED flashes red three (3) times	Lamp failure. Projector shuts down.
LED flashes red four (4) times	The fan has failed.
LED flashes red five (5) times	The projector is overheating.
LED is solid red	Undiagnosed error. Projector shuts down.

 Check the Thermal Switch

The thermal switch is designed to open when the temperature inside the projector gets too high. When the switch opens, the power supply shuts down, turning the projector off.
When the projector shuts down after operating for a few minutes or when the lamp fails to strike after repeated attempts at startup, check the thermal switch. First, power up the projector with the top off .Let the projector run until it shuts down. Measure resistance across the terminals at the thermal switch. If the resistance is infinite (Ω), replace the lamp housing, which includes the thermal switch.

Check fan operation

You can visually check the operation of the fans to see if they both work properly. Check the fans if the projector exhibits symptoms of overheating or if the red status LED indicates that a thermal issue is present.
To check the fans, first prepare for projector power up with the top case removed .
1. Connect the projector to AC power.
2. Power up the projector.

Warning:
When you start the projector, there is voltage present on the controller ECA and power supply. Be very careful where you probe and where you touch.
3. Follow the directions below to check the fans. The fans should both start up when you press the power button.

4. If a fan fails to operate, check the voltage at the connector on the controller to verify that the fan is receiving power. If a fan has failed, remove the fan and replace it .

AC Filter Board

The AC filter ECA fastens to a metal ground shield plate. The AC filter ECA includes the AC power connector and filtering components that ensure clean power reaches to the other projector components.
The AC filter ECA connects to the power supply ECA. A fuse on the AC filter ECA protects against internal shorts or supply surges. The fuses are not available as a replaceable part. Blown fuses typically indicate circuit damage and the need for ECA replacement

Color Wheel

The Color Wheel is to provide synchronized colored light to the optical engine. The Color Wheel connects to the ECA Controller via a ribbon cable. The Shroud is to provide a direct and uniformed light path from the lamp to the color wheel. The Shroud is fastened to the Lamp Cage. The Index Board reads color wheel rotation to maintain proper synchronization with the DMD and allow accurate image color reproduction

Check Controller ECA Voltages and Signals

1. Make sure the projector is unplugged.
2. Remove the power supply and AC filter ECA.
3. Remove the Shield Plate.
4. Position the power supply and AC filter ECA near enough to the projector to connect the controller/power supply cable from the controller ECA. You can do this if you turn the two ECAs over and connect it to the controller ECA in an upside-down position. This also leaves you room to access the controller ECA with measurement probes. Make sure to connect the AC filter ECA to the power supply.
5. Connect the lamp to the lamp cable connector at the side of the lamp housing. Make sure the connector fully engages the connector on the lamp module.
6. Position the top case right side up at the rear of the projector. Plug the keypad cable in.

7. Connect the projector to AC power.
8. Power up the projector, and check the voltages.

Acer Aspire One ZG5 – How to replace the ram – How to remove the case Acer Aspire One ZG5

Turn the netbook upside down with the battery at the top, away from you.

Unlock the battery by sliding the switch located near the left hinge to the left "unlocked" position.

Slide the latch located on the opposite hinge from the lock while pushing the battery up. Gently loosen the two Phillips #0 screws in the small panel that covers the wireless card. These screws are built into the panel and aren't meant to be completely removed.

Lift up the panel and remove it from the case. Disconnect the two antenna cables from the left side of the wireless card.

Remove the single 3.9 mm Phillips #1 screw from the bottom left of the wireless card. Gently lift up the left side of the wireless card and slide the card out of its socket.

Turn the netbook over and open the display so that the keyboard is facing you.

There are three tabs located on the top of the keyboard. Start with the spudger pointing towards the display and pry up to push each tab off the keyboard. As you move to the next tab, ensure the previous tab doesn't reset itself.

Lift top of keyboard up. If it doesn't lift easily, there may be tabs on the sides - use the tool to ease them aside and/or shift the keyboard from side to side.

There is a short ribbon cable connecting the keyboard to the netbook.

Disconnect the ribbon by lifting the black plastic hinge and removing the clear blue cable.

Close the display and turn the ZG5 over so that the battery compartment faces away from you.

Remove three 5.8 mm Phillips #0 screws from the bottom of the case Remove three 3.9 mm Phillips #1 screws from the battery compartment. Remove two 5.8 mm Phillips #0 screws from underneath the feet near the hinges.

Turn the netbook back over and open the display with the keyboard cavity facing you.

Flip up the retaining flap on the trackpad ribbon cable ZIF connector. Using the blue tab, pull the trackpad ribbon cable from its socket on the motherboard.

Remove the five black 4.7 mm Phillips #0 screws from the metal casing. Remove the single silver 4.3 mm Phillips #00 screw from the right side of the metal casing.

Starting at the red rings along the hinge, insert a spudger or plastic opening tool into the seam between the two halves of the case. Slide the spudger toward the front of the device, releasing the small clips that hold down the top case. Gently lift off the top case.

Disconnect the two antenna cables from the right side of the wireless card.

Remove the single 3.9 mm Phillips #1 screw from the wireless card.

Gently pull the wireless card to the right and slide it out of its socket.

Disconnect the display cable from the top left of the motherboard.

Disconnect the speaker cable from its socket on the motherboard.

Remove three 3.9 mm Phillips #1 screws from the small I/O board. Remove a single 3.9 mm Phillips #0 screw from the front of the motherboard. Some laptops may instead have a single 4.7 mm Phillips #0 screw.

Remove the two 4.7 mm Phillips #1 screws that connect the display to the motherboard.

Gently lift the I/O board up from the right side of the case. The I/O board is attached to the motherboard by a short cable.

 Lift the entire motherboard assembly out the case.

Turn the motherboard over so the RAM is facing up.

Simultaneously release both latches on opposing sides of the RAM. The RAM should spring up.

Pull RAM straight out from the slot.

LG Optimus F3 – How to replace the touch careen glass

LG Optimus F3:  How to replace the Digitzer Glass

Remove Back Cover

Remove SDCard (if you have one)

Remove SIM Card

Remove Battery

Remove 10 Philips Head screws

Using a pry took, pry the back plate off of the phone. Work your way around, prying the tabs as you come to them.

Use pry tool to disconnect camera cable and then remove the camera

Use pry tool to disconnect 4 ribbon cables and two antenna wires.

Use pry tool to gently remove the logic board.

Use pry tool to remove headphone jack.

Use the pry tool to pry the front frame off of the main body of the phone.

Carefully pull the digitizer cable through the slot. There will be a small piece of rubber blocking the opening. You may remove it, or just pull through it. Note: If the slot is not wide enough, make sure that you removed the headphone jack.

Use a heat gun or blow dryer to heat up the adhesive holding the glass in the frame. Carefully remove the glass using a pry tool.

Clean existing adhesive off of frame, or reuse it if you managed to keep it intact.

Apply new adhesive if not reusing existing adhesive.

Insert new glass. Ensure that speaker cover at top of phone is in place. Reverse steps to reassemble phone.

Samsung Galaxy Note II – How to replace the USB board of Samsung Galaxy Note II

Samsung Galaxy Note II:  How to replace the USB board

Grasp the end of the stylus and remove it from its slot in the midframe.

Pry with a plastic opening tool, or your fingernail, in the divot to the left of the rear-facing camera, near the power button.

Lift the rear case by the corner nearest the divot and remove it from the phone.

If you have an SD card inserted, use the flat end of a spudger, or your fingernail, to press the microSD card slightly deeper into its slot until you hear a click. After the click, release the card and it will pop out of its slot. Remove the microSD card. For reassembly, push the microSD card into the slot until it clicks in place.

Insert a plastic opening tool, or your finger, into the notch of the battery compartment and lift the battery upward.

Remove the battery from the midframe.

Remove the eleven 4.0 mm Phillips #00 screws securing the midframe to the display assembly.

Insert your plastic opening tool between the midframe and front panel assembly on the side of the phone. Slide the plastic opening tool down the seam.

Continue to run the plastic opening tool down the seam.

Carefully pry around the corner with a plastic opening tool.

Pry along the top of the phone with a plastic opening tool.

Push the plastic opening tool down to free the corner of the midframe from the display assembly.

Free the clips along the power button side of the phone. Lastly, free the two clips along the top and bottom edge of battery compartment.

Lift the display assembly out of the midframe.

Remove the 3 mm Phillips #00 screw from the speaker enclosure.

Remove the speaker enclosure.

Using the flat end of a spudger, disconnect the USB board cable connector. Use the tip of a spudger to disconnect the antenna cable connector from the USB board.

Push the flat end of a spudger under the USB board to separate it from the display assembly.

Insert the spudger at a shallow angle to avoid bending or damaging the USB board.

Remove the USB board from the display assembly.

Lenovo E40–80 – Keyboard Disassembling procedure – How to test the Battery pack – How to check the AC adapter

Lenovo E40–80:  Power system checkout
To verify if a battery pack or an ac power adapter is functional, do the following:
1. Turn off the computer.
2. Connect the ac power adapter.
3. Turn on the computer. If the computer can be turned on, it means that either the battery pack or the ac power adapter is functional.
4. Insert a straightened paper clip into the Lenovo button to reset the computer. If the computer is still powered on, it means that the ac power adapter is functional.
5. Turn off the computer.
6. Disconnect the ac power adapter and turn on the computer. If the computer can be turned on, it means that the battery pack is functional.
If you suspect a power problem, see the appropriate one of the following power supply checkouts:
“Checking the ac power adapter”
“Checking the external battery pack and the operational charging”
Checking the ac power adapter
You are here because the computer fails only when the ac power adapter is used.
If the power problem occurs only when the docking station or the port replicator is used, replace the docking station or the port replicator.
If the power-on indicator does not turn on, check the power cord of the AC adapter for correct continuity and installation.
To check the ac power adapter, do the following:
1. Unplug the ac power adapter cable from the computer.
2. Measure the output voltage at the plug of the ac power adapter cable. See the following illustration.

Note: Output voltage of pin 2 of the ac power adapter might differ from the one you are servicing.

3. If the voltage is not correct, replace the ac power adapter.
4. If the voltage is acceptable, replace the system board.
Note: Noise from the ac power adapter does not always indicate a defect.
Checking the external battery pack and the operational charging
Checking the external battery pack
To check for detailed battery status information, do the following:
7: Open the Power Manager program and click the Battery tab.
8 and Windows 8.1: Open the Lenovo Settings program and click Power.
Note: If the external battery pack becomes hot, it may not be able to charge. Remove it from the computer and leave it at room temperature for a while. After it cools down, reinstall and recharge it.
Checking the operational charging
To check whether the battery pack charges properly during operation, do the following:
1. Discharge the battery pack until the remained battery power is less than 50%.
2. Connect the computer to ac power to charge the battery pack. If the battery status icon in the Windows notification area indicates that the battery pack is not charging, remove the battery pack and let it return to room temperature.
3. Reinstall the battery pack. If the battery pack is still not charging, replace the battery pack.
4. Check the battery status icon again. If the same error still exists, replace the system board.

How to disassemble the Keyboard

Remove two screws 1.

Lift the keyboard a little by its upper edge with a flat blade, and then slide the keyboard frame forward

Lift the keyboard a little , and then detach the connector