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PowerBook G3 Wallstreet PMU Replacement

Introduction

The Power Management Unit is located on the bottom of the upper case.

What you need

  1. PowerBook G3 Wallstreet PMU Replacement, Keyboard: step 1, image 1 of 1

    • Remove both expansion bay modules using the levers on the front of the computer.

    • Insert your index fingers inside the expansion bays and search for the two ribbed tabs on the underside of the upper case. The tabs are located near the bottom corners of the keyboard.

    • Pull the tabs toward yourself and the keyboard will pop up.

    Edit

  2. PowerBook G3 Wallstreet PMU Replacement: step 2, image 1 of 1

    • Pull the keyboard forward to disengage the tabs holding it in back and rotate it toward you.

    • Rest the keyboard on the trackpad.

    Edit

    • This is a diagram of the ribbon clamp connectors you will disconnect in the next step.

    • 1) With your fingernails, grasp the locking bar on either side and pull up a small amount (about 1/16" or 2 mm).

    • 2) After disengaging the locking bar, slide the cable out of the connector.

    Edit

  4. PowerBook G3 Wallstreet PMU Replacement: step 4, image 1 of 1

    • Disconnect the two keyboard connectors by disengaging the clamps and pulling the ribbons directly upward.

    Edit

  5. PowerBook G3 Wallstreet PMU Replacement: step 5, image 1 of 1

    • Slide a spudger downward between each plastic strain relief cable and the wall of the case in order to bow out the cable beyond the small tab holding it in place.

    • Once the strain relief cables are free, lift the keyboard off.

    Edit

  6. PowerBook G3 Wallstreet PMU Replacement: step 6, image 1 of 1

    • Your laptop should look approximately like this.

    Edit

  7. PowerBook G3 Wallstreet PMU Replacement, Heat Shield: step 7, image 1 of 1

    • Remove the two Phillips screws from the heat shield.

    • One screw is shorter than the other. When putting the Wallstreet back together, this screw goes in the middle of the heat shield.

    Edit

  8. PowerBook G3 Wallstreet PMU Replacement: step 8, image 1 of 1

    • Grasp the metal handle on the heat shield and pull up and toward yourself.

    Edit

  9. PowerBook G3 Wallstreet PMU Replacement, Hard Drive: step 9, image 1 of 1

    • Unscrew, but do not remove, the single Phillips screw from the hard drive bracket.

    Edit

  10. PowerBook G3 Wallstreet PMU Replacement: step 10, image 1 of 1

    • Grasp the hard drive bracket on the left side and pull up and to the left.

    Edit

  11. PowerBook G3 Wallstreet PMU Replacement: step 11, image 1 of 1

    • Your laptop should look approximately like this.

    Edit

  13. PowerBook G3 Wallstreet PMU Replacement, Processor: step 12, image 1 of 1

    • Use a spudger, the tips of your fingers, or a flat non-metal tool to pry up the processor's right side.

    • Remove the processor by sliding it up and to the right.

    • The processor and RAM can be removed as a unit. It is not necessary to remove the RAM from the processor.

    • There are two tabs on the left side of the processor that fit into slots on the metal framework. Make sure these tabs are in the slots.

    Edit

  14. PowerBook G3 Wallstreet PMU Replacement, Modem: step 13, image 1 of 1

    • Remove the single Phillips screw from the modem.

    • Disconnect the orange PMU cable by pulling it directly up.

    Edit

  15. PowerBook G3 Wallstreet PMU Replacement: step 14, image 1 of 1

    • Disconnect the modem from the logic board by lifting up on the right side using a spudger, the tip of your finger, or a flat non-metal tool.

    • Remove the modem by sliding it up and to the right.

    Edit

  16. PowerBook G3 Wallstreet PMU Replacement: step 15, image 1 of 1

    • Your laptop should look approximately like this.

    Edit

  17. PowerBook G3 Wallstreet PMU Replacement, Clutch Cover: step 16, image 1 of 1

    • Push the display back so that it lies flat.

    • Slip a spudger or your index finger under the clutch cover near the power button and pull upward until you feel it come free.

    • Repeat the previous step on the left side.

    Edit

  18. PowerBook G3 Wallstreet PMU Replacement: step 17, image 1 of 1

    • Lift the clutch cover off by rotating it up and then toward you.

    Edit

  19. PowerBook G3 Wallstreet PMU Replacement, Display: step 18, image 1 of 1

    • Disconnect the orange display data cable on the left side of the computer. Grasp the cable near the connector and pull directly up.

    Edit

  20. PowerBook G3 Wallstreet PMU Replacement: step 19, image 1 of 1

    • Disconnect the orange display inverter cable on the right side of the computer. Grasp the cable near the connector and pull directly up.

    • Make sure that both cables are free from the plastic casing before proceeding to the next step.

    Edit

  21. PowerBook G3 Wallstreet PMU Replacement: step 20, image 1 of 1

    • Turn the laptop around so that its back faces you.

    • Open the port door located at the back of the laptop.

    • Remove the four black T8 Torx screws.

    Edit

  22. PowerBook G3 Wallstreet PMU Replacement: step 21, image 1 of 1

    • Turn the laptop back around so that the screen faces you.

    • Adjust the display so that it is in a vertical position.

    • Hold the display on both sides and pull directly up until its hinges are free of their mounts

    Edit

  23. PowerBook G3 Wallstreet PMU Replacement: step 22, image 1 of 1

    • Your laptop should look like this.

    Edit

  24. PowerBook G3 Wallstreet PMU Replacement, Upper Case: step 23, image 1 of 1

    • Remove the four T8 Torx screws from the upper case.

    Edit

  25. PowerBook G3 Wallstreet PMU Replacement: step 24, image 1 of 1

    • Turn the laptop over.

    • Remove the eight T8 Torx screws from the bottom casing.

    • There are two longer screws in the front left and front right corners; make sure to put them back in the proper place when reassembling.

    Edit

  26. PowerBook G3 Wallstreet PMU Replacement: step 25, image 1 of 1

    • Turn the laptop over.

    • Disengage the small locking tab by pressing in on the upper case to the right of the PMU connector.

    • Lift the upper case up just enough so that the tab rests on its metal bracket.

    Edit

  27. PowerBook G3 Wallstreet PMU Replacement: step 26, image 1 of 1

    • Grasp the upper case near the back left corner and lift up partly so that you can access and disconnect the audio in/out cable from the sound card in the upper right corner of the case.

    • Be careful not to lift the upper casing too far before you have disconnected the audio in/out cable.

    • Remove the upper casing. Note that there are two tabs on the laptop's front that often cause the upper case to stick.

    Edit

  28. PowerBook G3 Wallstreet PMU Replacement: step 27, image 1 of 1

    • Your laptop should look approximately like this.

    Edit

  29. PowerBook G3 Wallstreet PMU Replacement, PRAM Battery: step 28, image 1 of 1

    • Disconnect the multicolor cable from the right side of the PMU.

    Edit

  30. PowerBook G3 Wallstreet PMU Replacement: step 29, image 1 of 1

    • Free the battery cable from the upper case.

    Edit

  31. PowerBook G3 Wallstreet PMU Replacement: step 30, image 1 of 1

    • Use a spudger or the tips of your fingers to pry up the PRAM battery and free it from its housing.

    Edit

  32. PowerBook G3 Wallstreet PMU Replacement, PMU: step 31, image 1 of 1

    • Remove the single T8 Torx screw from the front left corner of the PMU.

    • Lift up the front edge of the PMU and disconnect the three smaller orange ribbon cables (two on the left side of the large PMU cable, and one on the right side) that attach to the underside of the PMU from the upper case.

    Edit

  33. PowerBook G3 Wallstreet PMU Replacement: step 32, image 1 of 1

    • Turn the upper case over and pull the PMU connector cable up from the upper case.

    Edit

  34. PowerBook G3 Wallstreet PMU Replacement: step 33, image 1 of 1

    • Turn the upper case back over and slide the PMU out.

    Edit
Conclusion

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

3 other people completed this guide.

Attached Documents

Author

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iRobot

Member since: 09/24/09

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