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This teardown is not a repair guide. To repair your PowerBook 190, use our service manual.

  1. PowerBook 190cs teardown, battery removal: step 1, image 1 of 2 PowerBook 190cs teardown, battery removal: step 1, image 2 of 2
    • push the battery latch to the right to release it, then pull it out.

  2. PowerBook 190cs teardown, keyboard removal: step 2, image 1 of 1
    • remove the three long T9 bottom screws.

  3. PowerBook 190cs teardown, flip display back: step 3, image 1 of 1
    • flip the display back for the following steps.

  4. PowerBook 190cs teardown, keyboard removal: step 4, image 1 of 3 PowerBook 190cs teardown, keyboard removal: step 4, image 2 of 3 PowerBook 190cs teardown, keyboard removal: step 4, image 3 of 3
    • use a spudger or similar flat tool to carefully lift up the keyboard.

    • on top of the keyboard are several flat plastic noses that keep it secured. Pull the keyboards towards you to release it from the case. Then flip it over. Notice its ribbon cables still are attached to the mainboard.

  5. PowerBook 190cs teardown, keyboard ribbon cable removal: step 5, image 1 of 3 PowerBook 190cs teardown, keyboard ribbon cable removal: step 5, image 2 of 3 PowerBook 190cs teardown, keyboard ribbon cable removal: step 5, image 3 of 3
    • locate the keyboard ribbon cable connectors on top left in the case. Carefully lift up the top part of the ribbon cable release: To not brake it, I do this in four small steps.. a few millimeters on the left and then on the right side, repeat untill the cable can be pulled out easily. Use good light.

    • to release the two flat keyboard ribbon cables use a slim tool, here I used an angled tweezer.

  6. PowerBook 190cs teardown, RAM card removal: step 6, image 1 of 2 PowerBook 190cs teardown, RAM card removal: step 6, image 2 of 2
    • if your machine has an additional expansion RAM card installed, carefully pull it out sideways with your fingernail to remove it.

  7. PowerBook 190cs teardown, removal of monitor end caps: step 7, image 1 of 2 PowerBook 190cs teardown, removal of monitor end caps: step 7, image 2 of 2
    • to remove the right monitor end cap, pull it up on the right side to release it, then remove it from the case.

  8. PowerBook 190cs teardown, removal of monitor end caps: step 8, image 1 of 2 PowerBook 190cs teardown, removal of monitor end caps: step 8, image 2 of 2
    • do the same for the left side. Notice that at the bottom end they have plastic screw hole latches attached, so do not brake it.

  9. PowerBook 190cs teardown, trackpad ribbon cable removal: step 9, image 1 of 3 PowerBook 190cs teardown, trackpad ribbon cable removal: step 9, image 2 of 3 PowerBook 190cs teardown, trackpad ribbon cable removal: step 9, image 3 of 3
    • to remove the trackpad ribbon cable, carefully lift up the top release latch with a fine tool, here I used an angled tweezer again ( as in the steps above for the keyboard ribbon cables).

  10. PowerBook 190cs teardown, trackpad top case removal: step 10, image 1 of 3 PowerBook 190cs teardown, trackpad top case removal: step 10, image 2 of 3 PowerBook 190cs teardown, trackpad top case removal: step 10, image 3 of 3
    • to release the trackpad top case, carefully but firmly push on the under part of the of the top case. (This will free the internal latches you can see on the inside of the battery bay).

    • repeat to push on the underside for the middle and left side of the case. The left side is a little harder to push. On the top there also is a little latch that catches onto the hard disk cage underneath. Then lift the top from the case.

    • Be aware that by now all 90s plastics have become very brittle, so take care.

  11. PowerBook 190cs teardown, hard disk case removal: step 11, image 1 of 3 PowerBook 190cs teardown, hard disk case removal: step 11, image 2 of 3 PowerBook 190cs teardown, hard disk case removal: step 11, image 3 of 3
    • to remove the hard disk case from the case, unscrew the three plastic screws to the front of the case. Then pull it up.

  12. PowerBook 190cs teardown, hard disk cage removal: step 12, image 1 of 3 PowerBook 190cs teardown, hard disk cage removal: step 12, image 2 of 3 PowerBook 190cs teardown, hard disk cage removal: step 12, image 3 of 3
    • carefully lay the the hard disk cage on its back to the left of the powerbook case, because the hard disk still is attached to the mainboard. Then pull out the connector of the hard disk.

  13. PowerBook 190cs teardown, display connector removal: step 13, image 1 of 2 PowerBook 190cs teardown, display connector removal: step 13, image 2 of 2
    • carefully lift up the display connector on its sides with your fingernails and release it from its board connector.

  14. PowerBook 190cs teardown, display removal: step 14, image 1 of 2 PowerBook 190cs teardown, display removal: step 14, image 2 of 2
    • locate the two T9 metal screws that secure the display on the case. Hold the display with your left hand to secure it before unscrewing it. Unscrew the two screws and carefully lift it up from the case.

    • Notice the fragile display cable that is wound around the left display post and the little attached ferrite that sometimes catches on the case.

  15. PowerBook 190cs teardown, PCMCIA board removal: step 15, image 1 of 2 PowerBook 190cs teardown, PCMCIA board removal: step 15, image 2 of 2
    • Locate the little PCMCIA board on the top left side in the case next to the display cable connector. Very carefully grab it with your fingernails or a fine tool and pull it off its connector on the board. Do not twist it, the tiny 4 pin connector is fragile.

  16. PowerBook 190cs teardown, Pram battery removal: step 16, image 1 of 2 PowerBook 190cs teardown, Pram battery removal: step 16, image 2 of 2
    • locate the battery next to the floppy drive and unplug it from its 3 pin connector on the board. Then pull the battery out.

  17. PowerBook 190cs teardown, CPU heatsink removal: step 17, image 1 of 3 PowerBook 190cs teardown, CPU heatsink removal: step 17, image 2 of 3 PowerBook 190cs teardown, CPU heatsink removal: step 17, image 3 of 3
    • Locate the CPU heatsink in the case. It just sits on the CPU and some small posts. Pull it out of the case. ( Notice there is a thermal pad attached on the unside. I already replaced it here with a blue one).

  18. PowerBook 190cs teardown, LED cable removal: step 18, image 1 of 3 PowerBook 190cs teardown, LED cable removal: step 18, image 2 of 3 PowerBook 190cs teardown, LED cable removal: step 18, image 3 of 3
    • Locate the LED cable on top of the floppy drive. Unplug it from its connector on the board.

    • In order to have an easier access for the motherboard removal I additionally secured the cable with a piece of tape.

  19. PowerBook 190cs teardown, floppy drive removal: step 19, image 1 of 3 PowerBook 190cs teardown, floppy drive removal: step 19, image 2 of 3 PowerBook 190cs teardown, floppy drive removal: step 19, image 3 of 3
    • push the little securing lever at the bottom of the case towards the drive. Then grab the drive and pull it out of the case. Sometimes it takes a little force.

  20. PowerBook 190cs teardown, mainboard removal: step 20, image 1 of 3 PowerBook 190cs teardown, mainboard removal: step 20, image 2 of 3 PowerBook 190cs teardown, mainboard removal: step 20, image 3 of 3
    • the mainboard is now free to be pulled out. It is not too difficult but you have to be careful. I grabbed on the most stable components like the PCMCIA cage and carefully pulled it towards me. In order to free the left metal fingers of the PCMCIA cage you have to slightly pull the casing outwards a little bit, otherwise they get stuck underneath.

    • as soon as the PCMCIA cage is free from the case you can pull the board out.

  21. PowerBook 190cs teardown, done.: step 21, image 1 of 1
    • grab a cup of coffee.

    • For reassembly, do the step backards.

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Jamba

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