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Inleiding

If there isn’t any sound coming out of the HP ProBook 450 G4 speakers while audio or video is playing this could indicate a problem with your speakers. The buildup of debris and dust is a common cause of faulty speakers so check and make sure that there isn’t any buildup in the speakers before using this guide. This guide is designed to help you safely and properly remove your laptop’s speakers in an easy to follow way. Before beginning, make sure to power off your laptop and disconnect it from all power sources.


  1. Power your laptop off. Flip the laptop over.
    • Power your laptop off.

    • Flip the laptop over.

    • Orient the laptop so the two vents on the bottom face upward and are further away from you.

  2. Use the Phillips #0 screwdriver to remove the 6.8 mm screw that secures the  vent panel to the laptop. Use the spudger to separate the vent panel from the laptop. Slide the vent panel off the backside of the laptop.
    • Use the Phillips #0 screwdriver to remove the 6.8 mm screw that secures the vent panel to the laptop.

    • Use the spudger to separate the vent panel from the laptop.

    • Slide the vent panel off the backside of the laptop.

  3. Use the Phillips #0 screwdriver to remove the black 3.2mm screw that secures the hard drive to the left side of the laptop. Use the Phillips #0 screwdriver to remove the black 3.2mm screw that secures the hard drive to the left side of the laptop.
    • Use the Phillips #0 screwdriver to remove the black 3.2mm screw that secures the hard drive to the left side of the laptop.

  4. Use the spudger to lift the left side of the hard drive up. Pull the hard drive diagonally to the left to release the hard drive from the laptop.
    • Use the spudger to lift the left side of the hard drive up.

    • Pull the hard drive diagonally to the left to release the hard drive from the laptop.

  5. Remove the 6.6mm T8 Torx screw located below where the hard drive used to be. Remove the 6.6mm T8 Torx screw located below and to the left of the circular, silver and black fan. Remove the 6.6mm T8 Torx screw located below and to the left of the circular, silver and black fan.
    • Remove the 6.6mm T8 Torx screw located below where the hard drive used to be.

    • Remove the 6.6mm T8 Torx screw located below and to the left of the circular, silver and black fan.

  6. Use the spudger to press down on the two black tabs that are underneath where the hard drive used to be. Apply pressure to the black tabs until they release and pop out. Apply pressure to the black tabs until they release and pop out.
    • Use the spudger to press down on the two black tabs that are underneath where the hard drive used to be.

    • Apply pressure to the black tabs until they release and pop out.

  7. Orient the laptop so the keyboard is facing upwards and towards you. Insert the spudger in between the edge of the keyboard and the computer frame. Slide the spudger around the edge of the keyboard until the keyboard is loose.
    • Orient the laptop so the keyboard is facing upwards and towards you.

    • Insert the spudger in between the edge of the keyboard and the computer frame.

    • Slide the spudger around the edge of the keyboard until the keyboard is loose.

    • Gently pull the keyboard away from the body of the laptop.

    • Do not pull the keyboard all the way off because there is still a connector cable underneath that needs to be disconnected.

  8. Use a spudger to gently lift up the black locking bar on the keyboard connector. Slide the keyboard ribbon out of the connector.
    • Use a spudger to gently lift up the black locking bar on the keyboard connector.

    • Slide the keyboard ribbon out of the connector.

    • Remove the keyboard.

    • To re-attach the keyboard ribbon, slide it into the connector and swing the locking bar down.

  9. Flip the laptop back over. Remove the seven 6.8mm T8 Torx screws on the backside of the laptop.
    • Flip the laptop back over.

    • Remove the seven 6.8mm T8 Torx screws on the backside of the laptop.

  10. Use a Phillips #0 screwdriver to remove the three 6.6mm screws from the upper left corner of the laptop. Use a Phillips #0 screwdriver to remove the three 6.6mm screws from the upper left corner of the laptop.
    • Use a Phillips #0 screwdriver to remove the three 6.6mm screws from the upper left corner of the laptop.

  11. Use the spudger to slide the disk drive out of the laptop. Use the Phillips #0 screwdriver to remove the two 3.2mm screws that are underneath where the disk drive previously was.
    • Use the spudger to slide the disk drive out of the laptop.

    • Use the Phillips #0 screwdriver to remove the two 3.2mm screws that are underneath where the disk drive previously was.

  12. Use a Phillips #0 screwdriver to remove the two 6.6mm screws. Use a Phillips #0 screwdriver to remove the two 6.6mm screws. Use a Phillips #0 screwdriver to remove the two 6.6mm screws.
    • Use a Phillips #0 screwdriver to remove the two 6.6mm screws.

  13. Flip the laptop back over so it is facing upwards. Remove the six 6.6mm T8 Torx screws underneath where the keyboard used to be.
    • Flip the laptop back over so it is facing upwards.

    • Remove the six 6.6mm T8 Torx screws underneath where the keyboard used to be.

  14. Use the spudger to disconnect the nine cable connectors that secure the top case of the laptop to the body of the laptop. Be extra careful while disconnecting the cable connectors because they can tear easily. Be extra careful while disconnecting the cable connectors because they can tear easily.
    • Use the spudger to disconnect the nine cable connectors that secure the top case of the laptop to the body of the laptop.

    • Be extra careful while disconnecting the cable connectors because they can tear easily.

  15. Insert the spudger in between the top case of the laptop and its outer frame. Slide the spudger around the edge of the laptop until the top case comes off.
    • Insert the spudger in between the top case of the laptop and its outer frame.

    • Slide the spudger around the edge of the laptop until the top case comes off.

    • Remove the top case.

  16. Insert the opening tool underneath the left side of the battery to remove it from the laptop. Insert the opening tool underneath the left side of the battery to remove it from the laptop.
    • Insert the opening tool underneath the left side of the battery to remove it from the laptop.

  17. Orient the top case of the laptop so that the internal parts are facing upwards and green rectangular object is closer to you. Identify the two speakers at the top.
    • Orient the top case of the laptop so that the internal parts are facing upwards and green rectangular object is closer to you.

    • Identify the two speakers at the top.

  18. Use the Phillips #0 Screwdriver to remove the two 3.5mm screws connecting the speakers to the top case of the laptop. Use the Phillips #0 Screwdriver to remove the two 3.5mm screws connecting the speakers to the top case of the laptop. Use the Phillips #0 Screwdriver to remove the two 3.5mm screws connecting the speakers to the top case of the laptop.
    • Use the Phillips #0 Screwdriver to remove the two 3.5mm screws connecting the speakers to the top case of the laptop.

  19. Insert the spudger underneath each speaker to detach them from the top case of the laptop. Insert the spudger underneath each speaker to detach them from the top case of the laptop.
    • Insert the spudger underneath each speaker to detach them from the top case of the laptop.

Conclusie

To reassemble your device, follow these instructions in reverse order.

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Sebastian Dow

Lid sinds: 23-01-20

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Cal Poly, Team S1-G3, White Winter 2020 Lid van Cal Poly, Team S1-G3, White Winter 2020

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