Sunday, April 03, 2016

HP Pro Tablet 408 G1 – Disassembling procedure – How to remove the battery – How to remove the WWAN antenna – How to remove the system board – Tablet repair and service

Category: Tablets Repair and Service 

Contents of this article 

  • How to remove the battery 
  • How to remove the system board 
  • How to remove WWAN antenna 

HP Pro Tablet 408 G1

DISASSEMBLING PROCEDURE 
How to remove Back cover
Before disassembling the tablet, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
Remove the back cover:
1. Place the tablet on a flat surface, display panel side down, with the volume control buttons toward you.
2. Insert a thin, plastic tool (1) between the back cover and the middle frame.
3. Lift the bottom edge of the back cover (2) until it separates from the middle frame.
4. Remove the back cover (3).
Remove the middle frame and battery:
1. Remove the shield (1) and tape (2) the cover the battery cable.
2. Disconnect the battery cable (3) from the system board.
3. Remove the eight Phillips PM2.4×4.8 screws (1) that secure the middle frame to the tablet.
4. Lift the bottom edge of the middle frame (2) until the display panel cable zero insertion force (ZIF) connector is accessible.
5. Release the ZIF connector (3) to which the display panel cable is attached, and then disconnect the display panel cable from the display panel assembly.
6. Remove the middle frame (4) and battery.
How to remove WWAN antenna
Before removing the WWAN antenna, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover
5. Remove the middle frame
Remove the WWAN antenna:
1. Turn the middle frame upside down with the volume control buttons facing away.
2. Disconnect the WWAN antenna cables from the WWAN terminals (1) on the system board.
3. Release the WWAN antenna cables from the retention clips (2) built into the middle frame.
4. Detach the WWAN antenna transceivers (3) from the middle frame. (The WWAN antenna transceivers are attached to the middle frame with double-sided adhesive.)
5. Remove the WWAN antenna (4).
Before removing the rear-facing webcam, follow these steps:
1. Turn oƫ the tablet. If you are unsure whether the tablet is oƫ or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover
5. Remove the middle frame and battery
Remove the rear-facing webcam:
1. Turn the middle frame upside down with the volume control buttons facing away.
2. Release the ZIF connector (1) to which the rear-facing webcam is attached, and then disconnect the rear-facing webcam cable from the system board.
3. Detach the rear-facing webcam cable (2) from the system board. (The rear-facing webcam cable is attached to the system board with double-sided adhesive.)
4. Remove the rear-facing webcam (3).
How to remove System board
Before removing the system board, follow these steps:
1. Turn off the tablet. If you are unsure whether the tablet is off or in Hibernation, turn the tablet on, and then shut it down through the operating system.
2. Disconnect the power from the tablet by unplugging the power cord from the tablet.
3. Disconnect all external devices from the tablet.
4. Remove the back cover
5. Remove the middle frame and battery
6. Remove the rear-facing webcam
Remove the system board:
1. Remove the shield (1) that covers the WLAN antenna cable connectors.
2. Remove the shield (2) that covers the display panel cable connector
3. Disconnect the following cables from the system board:
(1) WLAN antenna cables from the WLAN antenna terminals on the system board
(2) GPS antenna cable from the GPS antenna terminal on the system board
(3) Front-facing webcam cable from the ZIF connector on the system board
(4) Display panel cable from the ZIF connector on the system board
(5) Transfer board cable from the ZIF connector on the system board
4. Turn the middle frame upside down with the volume control buttons facing away.
5. Disconnect the WWAN antenna cables from the WWAN terminals (1) on the system board.
6. Remove the ƭve Phillips PM1.9×2.5 screws (2) that secure the system board to the display panel assembly.
7. Detach the WLAN antenna transceivers (3) from the system board. (The WLAN antenna transceivers are attached to the system board with double-sided adhesive.)
8. Detach the GPS antenna transceiver (4) from the system board. (The GPS antenna transceiver is attached to the system board with double-sided adhesive.)
9. Remove the system board (5).