Now disconnect power adapter, reconnect the internal backup battery and keyboard. Reconnect the power adapter and test startup before replacing the keyboard and connecting the internal backup battery if successful, press and hold the power button to shut down. There is a red/white/black pigtail running to the logic board carefully pull up on the white connector to disconnect it (needlenose pliers work well).this allows the power manager to fully clear. Remove all power > lift off keyboard > you will see the brown, circular backup batteries in a black case in front of the HD. If still no success, your next step would be to disconnect the PRAM battery (same as Pismo): If no success, try the whole procedure several more times. Connect just the power adapter, wait 5 seconds, then press the power button.Ĥ. Press/hold the reset button on the back panel for 30 seconds.ģ. Be careful the powerbook does not tip back and damage something.Ģ. Disconnect the power adapter, remove the main battery and DVD-ROM module from the media bay. This document was last generated on 06:48:15 AM.Assuming the Lombard has no hardware problems, plus it has a working power adapter, I would try this approach:ġ. To reassemble your device, follow these instructions in reverse order. Remove the battery from its holderby pulling up and to the left. Pull the battery cable directly upfrom the logic board. The Airport card is still attached tothe antenna cable, so don't just yankit out of the slot.ĭisconnect the antenna cable fromthe Airport card. Skip this step if your computer doesnot have an Airport card installed.įirmly grasp the plastic tab attachedto the Airport card and pull up andthen to the right. Lift the heat shield up and pull ittoward you. Remove the two silver Phillips #1screws that attach the heat shield tothe internal metal framework. Your laptop should lookapproximately like this. Make sure you have removed thelaptop battery and CD/DVD modulesfrom the expansion bays beforeproceeding. You can use this technique onmany of the cards and cables you'llbe disconnecting. Gentlyrock the connector from side to sidewhile pulling directly upward to freeit. Pull the keyboard ribbon straight upfrom the logic board. Rest thekeyboard, face down, on top of thetrack pad. Lift the keyboard out by pulling it upand away from you. Pull the keyboard release tabstoward you and lift up on thekeyboard until it pops free. Turn the keyboard locking screw sothat it is parallel to the space bar. The time and date, as well as other settings, are kept by the PRAM battery when your machine is off. PowerBook G3 Pismo PRAM Battery Replacement PowerBook G3 Pismo PRAM BatteryReplacement

Powerbook g3 pram battery