Apple Powerbank G4 specification

3.Check perimeter wiring, where shown, to verify that it will not be caught or pinched by the top case during replacement.

4. Check that display cable brackets are properly seated and secured with screws.

20 - PowerBook G4 (17-inch) Take Apart

Top Case

Image 22

Apple Powerbank G4 manual

Contents

 Service Source PowerBook G4 17-inch  Service Source Take Apart General Information New ProceduresOverview Important Notes Tools Serial Number Location Zero Insertion Force Connectors To release the ﬂex cable To connect a ﬂex cable Battery Part Location Preliminary Steps Procedure Memory Door Memory Cards Procedure Page Page Page Page Top Case Part Location 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 Wire and Flex Cables Cable or Flex Cable Name Signals Running Through It Cable or Flex Cable Name Signals Running Through It Potential ﬂex cable and connector issues ZIF connector locking Bar Broken connectors on the ﬂex cable Cable is not secured straight Cables nicked or crimped Apple Service Diagnostic ASD Hardware Troubleshooting Tools and TipsApple 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 PMU NMI and PMU Reset pads on logic board Caps lock LED power check Customer forgot password Software Troubleshooting Tips and ToolsLogin window and account Safe Mode Knowledge Base Articles Hardware Symptom Charts How to Use the Symptom Charts Power Adapter Note Startup Page Prohibitory Sign Kernel Panic dialog box Flashing question mark appears on the screen System shuts down intermittently System shuts down almost immediately after startup Application Quits, Kernel panic or other booting problems Error BeepsComputer beeps once at startup Computer beeps three times at startup Computer beeps twice at startupComputer beeps four times at startup AirPort Extreme Card not recognized AirPort Extreme CardAirPort connection is slow Battery will not eject BatteryBattery wont charge Bluetooth Bluetooth Card not recognized by other devices Display Display latch not working Hard Drive Internal hard drive will not initialize No response from any key on keyboard KeyboardNo keyboard illumination Half keyboard is illuminated MicrophoneMicrophone is not working No modem dial tone ModemModem does not respond can hear dial tone Optical Drive Difﬁculty writing to optical media PC Card will not insert into the PC Card slot PC CardPC Card does not mount to the desktop USB port is not recognizing devices FireWire port is not recognizing devicesPorts USB device not recognized by computer Sound No sound from speakers Distorted sound from speakers Trackpad Cursor does not move when you are using trackpadCursor intermittently does not move or moves erratically Video Sleep LED does not come on when lid is closed Misc. SymptomsDate and Time settings reset all the time Feet came off the bottom casePage  Service Source Views PowerBook G4 17-inch Exploded View