Installing PowerBook G3 Wallstreet PMU

  • Author: iRobot
  • Difficulty: Difficult
  • Add Note x

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

Sections
Files
Tools
Relevant parts
first image

Add Note Edit Step 1 — Keyboard  ¶ 

  • 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.

first image

Add Note Edit Step 2  ¶ 

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

  • Rest the keyboard on the trackpad.

first image

Add Note Edit Step 3  ¶ 

  • 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.

first image

Add Note Edit Step 4  ¶ 

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

first image

Add Note Edit Step 5  ¶ 

  • Slide a spudger or screwdriver 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.

first image

Add Note Edit Step 6  ¶ 

  • Your laptop should look approximately like this.

first image

Add Note Edit Step 7 — Heat Shield  ¶ 

  • 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.

first image

Add Note Edit Step 8  ¶ 

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

first image

Add Note Edit Step 9 — Hard Drive  ¶ 

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

first image

Add Note Edit Step 10  ¶ 

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

first image

Add Note Edit Step 11  ¶ 

  • Your laptop should look approximately like this.

first image

Add Note Edit Step 12 — Processor  ¶ 

  • 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.

first image

Add Note Edit Step 13 — Modem  ¶ 

  • Remove the single Phillips screw from the modem.

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

first image

Add Note Edit Step 14  ¶ 

  • 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.

first image

Add Note Edit Step 15  ¶ 

  • Your laptop should look approximately like this.

first image

Add Note Edit Step 16 — Clutch Cover  ¶ 

  • 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.

first image

Add Note Edit Step 17  ¶ 

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

first image

Add Note Edit Step 18 — Display  ¶ 

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

first image

Add Note Edit Step 19  ¶ 

  • 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.

first image

Add Note Edit Step 20  ¶ 

  • 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.

first image

Add Note Edit Step 21  ¶ 

  • 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

first image

Add Note Edit Step 22  ¶ 

  • Your laptop should look like this.

first image

Add Note Edit Step 23 — Upper Case  ¶ 

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

first image

Add Note Edit Step 24  ¶ 

  • 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.

first image

Add Note Edit Step 25  ¶ 

  • 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.

first image

Add Note Edit Step 26  ¶ 

  • 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.

first image

Add Note Edit Step 27  ¶ 

  • Your laptop should look approximately like this.

first image

Add Note Edit Step 28 — PRAM Battery  ¶ 

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

first image

Add Note Edit Step 29  ¶ 

  • Free the battery cable from the upper case.

first image

Add Note Edit Step 30  ¶ 

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

first image

Add Note Edit Step 31 — PMU  ¶ 

  • 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.

first image

Add Note Edit Step 32  ¶ 

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

first image

Add Note Edit Step 33  ¶ 

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

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

For more information, check out the PowerBook G3 Wallstreet device page.

Did you successfully follow this guide?

Notes Add Note Notes are offturn on