PowerBook G3 Pismo Inverter ReplacementWritten By: iRobot

PowerBook G3 Pismo Inverter Replacement

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INTRODUCTION

The inverter powers the LCD backlight and is not a difficult part to replace.

TOOLS:Anti-Static Wrist Strap (1)

Phillips #0 Screwdriver (1)

Spudger (1)

T8 Torx Screwdriver (1)

PARTS:G3 Pismo Display Inverter (1)

PowerBook G3 Pismo Inverter Replacement

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Step 1 — Keyboard

Turn the keyboard locking screw sothat it is parallel to the space bar.

Pull the keyboard release tabstoward you and lift up on thekeyboard until it pops free.

Lift the keyboard out by pulling it upand away from you. Rest thekeyboard, face down, on top of thetrack pad.

Step 2

Pull the keyboard ribbon straight upfrom the logic board. Place thekeyboard aside.

The connector may be tight. Gentlyrock the connector from side to sidewhile pulling directly upward to freeit. You can use this technique onmany of the cards and cables you'llbe disconnecting.

Make sure you have removed thelaptop battery and CD/DVD modulesfrom the expansion bays beforeproceeding.

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Step 3

Your laptop should lookapproximately like this.

Step 4 — Heat Shield

Remove the two silver Phillips #1screws that attach the heat shield tothe internal metal framework.

Lift the heat shield up and pull ittoward you.

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Step 5

Your laptop should lookapproximately like this.

Step 6 — Airport Card

Skip this step if your computer doesnot have an Airport card installed.

Firmly grasp the plastic tab attachedto the Airport card and pull up andthen to the right.

The Airport card is still attached tothe antenna cable, so don't just yankit out of the slot.

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Step 7

Disconnect the antenna cable fromthe Airport card.

Step 8 — PRAM Battery

Pull the battery cable directly upfrom the logic board.

Remove the battery from its holderby pulling up and to the left.

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Step 9

Your laptop should lookapproximately like this.

Step 10 — Heat Sink

Remove the long silver Phillips #1screw from the heat sink.

Remove the two T8 Torx screws thatattach the heat sink to theprocessor.

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Step 11

Lift the heat sink up from the leftside and pull it out.

If you need to mount the heat sinkback into the laptop, we have athermal paste guide that makesreplacing the thermal compoundeasy.

Step 12 — Processor

Grasp the plastic tab on theprocessor's right side and pull itdirectly up.

Some processors may be missingthe plastic pull tab. In this case, wesuggest using a non-metal tool togently pry up the processor. Slip thetool's thin edge under the front rightcorner of the processor and carefullypry it up.

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Step 13

Your laptop should lookapproximately like this.

Step 14 — Modem

Remove the black Torx screw fromthe right side of the modem.

Remove the small black plasticrectangle with four holes.

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Step 15

Use the tips of your fingers, aspudger, or a flat non-metal tool toget under the modem's edge and pryit up from its socket.

Step 16

Disconnect the cable from the rightside of the modem.

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Step 17 — Hard Drive

Grasp the orange cable at the leftend of the hard drive and disconnectit from the logic board.

Try to grasp the cable on the plasticconnector rather than on the flexiblecable section.

Step 18

Grasp the plastic tab and pull thehard drive up and to the left, makingsure that the metal bracket doesn'tcatch on the black plastic casing.

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Step 19

Your laptop should lookapproximately like this.

Step 20 — Clutch Cover

Push the display back so that it liesflat.

Slip your index finger or a nylon toolunder the clutch cover near thepower button and pull gently upwarduntil you feel it come free.

Repeat the previous step on the leftside.

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Step 21

Lift the clutch cover up and off,rotating it toward yourself.

Step 22 — Inverter

Grasp the orange display data cableand disconnect it from the logicboard.

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Step 23

Remove the single black Torx screwthat fastens the display cable to theplastic casing.

Grasp the thin display inverter boardat its left end; lift up and rotatetoward yourself.

There are two tabs that hold thedisplay inverter in place; these arewhat you need to get past in order topull the board free.

Step 24

Disconnect the white inverter cablefrom the right end of the board

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

This document was last generated on 2017-06-21 09:15:29 AM.

Step 25

Disconnect the inverter plug, pullingdirectly up from the logic board.

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