Apple Powerbank G4 specs

8.To install the pop-up torsion bars, insert the bar so that the notch is behind the pop-up spring pin and install the ﬁrst screw furthest away from the pin.

9.Then, use a sturdy hex nut driver to press the torsion bar down ﬂat (this places tension on the pop-up spring pin) and install the second screw. Do this for both sides.

Display Panel Assembly

PowerBook G4 (17-inch) Take Apart - 91

Image 93

Apple Powerbank G4 manual

Contents

 Service Source PowerBook G4 17-inch  Service Source Take Apart New Procedures General InformationOverview Tools Important Notes Serial Number Location To release the ﬂex cable Zero Insertion Force Connectors To connect a ﬂex cable Part Location Preliminary Steps Battery Procedure Memory Door Memory Cards Procedure Page Page Page Page Part Location Top Case Preliminary Steps Page Page Page Replacement Procedure Page Page Page Page Page Page Page Page Page Page Page Page Keyboard Procedure Page Page Page Replacement Procedure Page Page Page Hard Drive Procedure Page Sound Board Procedure Page SuperDrive Procedure Page Backup Battery Board Procedure Modem Procedure PC Card Cage AirPort Extreme Assembly Procedure Page Page Page Page Bluetooth Procedure Page Speakers Procedure Page DC-In Board Procedure Page Page Logic Board Preliminary Steps Page Page Replacement Procedure Page Page Page Page Page Page Page Display Panel Assembly Procedure Page Page Page Page Replacement Procedure Page Page Page Page Page Page Heatsink and Fan Assembly Procedure Bottom Case Assembly Procedure  Service Source Troubleshooting Cable or Flex Cable Name Signals Running Through It Wire and Flex Cables Cable or Flex Cable Name Signals Running Through It ZIF connector locking Bar Potential ﬂex cable and connector issues Cable is not secured straight Broken connectors on the ﬂex cable Cables nicked or crimped Hardware Troubleshooting Tools and Tips Apple Service Diagnostic ASDApple Hardware Test 2.0.1 AHT General Information PowerBook G4 17-inch Troubleshooting Resetting the Power Manager Unit PMU Power-on pads on logic board Caps lock LED power check PMU NMI and PMU Reset pads on logic board Login window and account Software Troubleshooting Tips and ToolsCustomer forgot password Safe Mode Knowledge Base Articles How to Use the Symptom Charts Hardware Symptom Charts Power Adapter Note Startup Page Prohibitory Sign Kernel Panic dialog box Flashing question mark appears on the screen System shuts down almost immediately after startup System shuts down intermittently Error Beeps Application Quits, Kernel panic or other booting problemsComputer beeps once at startup Computer beeps twice at startup Computer beeps three times at startupComputer beeps four times at startup AirPort Extreme Card AirPort Extreme Card not recognizedAirPort connection is slow Battery Battery will not ejectBattery wont charge Bluetooth Card not recognized by other devices Bluetooth Display latch not working Display Internal hard drive will not initialize Hard Drive Keyboard No response from any key on keyboardNo keyboard illumination Microphone Half keyboard is illuminatedMicrophone is not working Modem No modem dial toneModem does not respond can hear dial tone Difﬁculty writing to optical media Optical Drive PC Card PC Card will not insert into the PC Card slotPC Card does not mount to the desktop Ports FireWire port is not recognizing devicesUSB port is not recognizing devices USB device not recognized by computer No sound from speakers Sound Distorted sound from speakers Cursor does not move when you are using trackpad TrackpadCursor intermittently does not move or moves erratically Video Date and Time settings reset all the time Misc. SymptomsSleep LED does not come on when lid is closed Feet came off the bottom casePage  Service Source Views PowerBook G4 17-inch Exploded View