Manuals / Apple / Computer Equipment / Computer Accessories

Apple G3 Using your fingers, disconnect the LED, connector and gently, guide the cable out of its

Models: 3400C/200 G3

1 210

Page 126

Take Apart	Logic Board - 47
3	Using your fingers,
	disconnect the LED
	connector and gently
	guide the cable out of its
	5 tabs on the CPU
	stiffener.

4 Lift off the air flow deflector, if present. (Note: The PowerBook G3 does not include an air flow deflector.)

Page 126

Image 126

Apple G3 manual Using your fingers, disconnect the LED, connector and gently, guide the cable out of its, tabs on the CPU

Contents

PowerBook 3400c/ PowerBook G3 K Service SourcePowerBook 3400c/180, 3400c/200, and PowerBook G3 Hot Issues PowerBook 3400/G3K Service Source Overview PowerBook 3400 Modem Driver Update Since many users believed these issues were heat-related Solution These problems are not heat-related. To addressthese situations, Apple has released a modem driver update driver should resolve the issues and prevent needlessinstallation instructions PB 3400 Modem Driver Update.imgPB 3400 Modem Driver Update Info This revision will be supported when it is rolled into thePowerBook 3400 Display Cable Gasket Installation 8/97 and 10/97 PowerBook 3400 Battery Gasket Installation 8/97 For instructions on installing the Battery Gasket, see customers and can order the kit as service part number076-0706. The installation is a warranty repair “Battery Gasket Installation” in the Additional ProceduresPowerBook 3400c/PowerBook G3 BasicsK Service Source Basics PowerBook 3400cProduct Overview Product OverviewPowerBook G3 System Configurations PowerBook 3400c/180 February ‘97PowerBook 3400c/200 February ‘97 PowerBook 3400c/240 March ‘97 PowerBook G3 November ‘97Repair Strategy OrderingUSA Ordering Canadian Ordering BasicsRepair Strategy Warranty/AppleCare/ARIS US OnlyCanada Only View of Front and Right Side Volume Control Sleep Indicator Microphone Stereo SpeakersExpansion Bay Drive Light Security Slot Battery View of Rear and Left Side Logic Board connectorsLogic Board The logic board includesSignals on the Video Connector Signal NameDescription Battery Information Main Battery Optional Battery Battery Handling GuidelinesDo not leave a battery in the computer for longer than a SafetyHandle the battery carefully. Do not drop, puncture week without plugging in the power adapterPC Card Handling Card unit. Type III cards can only be placed in the lower slot When a Type III card is in the lower slot, the upper slotCard. When the computer is in sleep mode, a PC Card cannot be usedabout an inch more and then push it back in. If you don’t follow this procedure and try to push the card back in toIf you want to use the card again immediately, pull it out use it again, the card will not engage properlyPowerBook 3400c /PowerBook G3 SpeciﬁcationsK Service Source Introduction PowerBook G3 PowerBook 3400cPowerPC 603e microprocessor running at 180, 200, or PowerPC G3 microprocessor running at 250 MHzMemory MemoryVRAM 16 MB EDO RAM, expandable to 144 MBPowerBook 3400c PowerBook G3 Disk StorageFloppy Drive Hard Drives CD-ROM Drives I/O Interfaces SCSI PC Cards ADBSerial SoundInfrared Connector on side panel allows users to attach security device Power AdapterPower adapter port also secures battery and any module in expansion bayExpansion Interfaces Expansion InterfacesExpansion Bay SpecificationsI/O Devices I/O DevicesKeyboard Trackpad Microphone 19-mm vertical and horizontal pitch Integrated, solid-state trackpadVideo VideoDisplay 12.1 diagonal, 800 x 600 active matrix color SVGA thousands ofElectrical Main Battery Power Adapter Backup BatteryElectrical 100-240 VAC line voltage, 50-60 Hz7.2 lb. 3.2 kg with floppy drive installed DimensionsWeight 7.4 lb. 3.3 kg with CD-ROM drive installedOperating Altitude Shipping/Non- Operating Altitude Operating Temperature Storage Temperature Relative HumidityEnvironmental EnvironmentalTroubleshooting K Service SourcePowerBook 3400c/PowerBook G3 General Symptom Charts StartupUpgrade to System Enabler 1.2.1 or later. Refer to Apple Software Reset PRAMerror chord sequence occurs when usingPower Screen Replace backup battery Check keyboard and backup battery cables and connectionsbattery, some Control Panel settings areWhen Shutdown is Verify that power adapter is connected correctlyPower selected with powerlow-power Low-power warningAttach power adapter and recharge battery backlight or other power-consuming devices. Or, reconnectVideo Display operate Adjust screen brightness settingBacklight doesn’t Verify that backlight cable connection is secureConnect power adapter mode, reset power managerInsert disk into floppy drive and press Command-e eject Note If sleep light is blinking and computer is not in sleepPowerBook shows PowerBook shows noVerify monitor using another computer Thin white line isSound Floppy Drive Try known-good system disk booting displayejects while DiskDisk does not eject Switch off system and hold trackpad button down while youswitch system on Eject disk manually by carefully inserting opened paper clipTry to format a floppy disk errorRead/write/copy TroubleshootingHard Drive CD-ROM Drive present, but CD-ROM Symptom Charts/CD-ROM DriveTry known-good CD-ROM disc Check CD-ROM drive cable connections inside CD-ROMPC Card Module PCMCIA Troubleshooting System with PC card Replace logic board. performs poorly orhangs during floppy drive operations Symptom Charts/PC Card Module PCMCIAVerify infrared signal is being received by host computer TroubleshootingSymptom Charts/Infrared CommunicationClean infrared window with soft lint-free cloth Infrared CommunicationPeripherals when you are using Symptom Charts/PeripheralsShut down computer, unplug adapter, and remove battery. Let Connect low-power mouse and try to move cursor. If cursorNote User must touch trackpad with the surface of only one Clean trackpad surface with computer off, using a nonintermittently does not move ormoves, but Try a known-good low-power mouse. If the known-goodmouse works, clean mouse ball and inside of original mouse clicking trackpadUpdate Serial DMA extension to version 2.1 or higher Reset the power managerCheck keyboard connection by disconnecting and reconnecting Verify that computer is onKnown unrecognized, or Verify that SCSI select switch setting on external device isI/O devices are garbage isMiscellaneous Troubleshooting Troubleshooting Flowchart-Startup ProblemsTroubleshooting Flowchart-Startup Problems STARTTroubleshooting Symptom Charts/MiscellaneousTroubleshooting Flowchart-Startup Problems 2. Boot with Disk Tools Update DriverTake Apart K Service SourcePowerBook 3400c /PowerBook G3 Take ApartTools Dental pick for opening flex connectorsTools Use the following tools for taking apart these computersScrews Bottom Case Assembly Bottom Case AssemblyTake Apart Before you begin, unplug the power adapter BatteryBattery Take ApartYou must install the battery the battery out of theReplacement Caution before connecting the powerNo preliminary steps are required Floppy Drive AssemblyFloppy Drive Assembly Note Media bay devices require approximately 7 lb. pull strengthforward assembly by its ridged1 Slide the release button Caution Grasp the ridgedFloppy Drive Assembly Media bay tolerances are tightAlign media bay devices carefully before inserting them into the bay Replacement CautionTake Apart CD-ROM Drive AssemblyCD-ROM Drive Assembly No preliminary steps are requiredit, turn the unit upside assembly without damagingCaution To remove the down, as shownTake Apart CD-ROM Drive AssemblyReplacement Caution Media bay tolerances are tightKeyboard Before you begin, remove the following BatteryFloppy or CD-ROM Drive Assembly Take ApartKeyboardturn it upside down KeyboardClose the computer and Remove theOpen the computer Take ApartKeyboard Take ApartKeyboard 5 Gently turn the keyboard onto the palm rest Replacement Note As you Before you begin, remove the following Battery Floppy Drive Keyboard RAM CardTake ApartRAM Card RAM Card Take ApartRAM Card Take ApartBrightness & Speaker Grill Floppy or CD-ROM Drive Assembly KeyboardBrightness Speaker Grill Before you begin, remove the following BatteryBrightness & Speaker Grill Using a dental pickconnector detach the brightnessReplacement Caution Take ApartLeft & Right Clutch Covers Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillLeft & Right Clutch Covers Before you begin, remove the following Batteryassembly assembly at 170 fromdisplay. Using a Left & Right Clutch Coversunder the clutch cover tabs Replacement Note Install the palm rest before installingthe right & left clutch covers. The tabs on the palm rest fit Take ApartBefore you begin, remove the following Battery Palm RestTake ApartPalm Rest Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grillthe palm rest and pull it Palm RestGrasp the right corner of Grasp the top ridge of thedetach the trackpad 4 Using a dental pickReplacement Notes connectorLeft & Right Clutch Covers Palm Rest TrackpadTake ApartTrackpad Before you begin, remove the following Batterybutton in place Trackpadthat hold the trackpad Take ApartPage Take Apart Note Use a nonstatic inducing material to clean thetrackpad surface, making sure the computer is off TrackpadBefore you begin, remove the following Battery Sleep ActuatorTake ApartSleep Actuator Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill1 Remove the screw that holds the closure switchSleep Actuator in placescrewdriver behind the pinsPlace a flat-blade actuator and push theBefore you begin, remove the following Battery Hard DriveTake ApartHard Drive Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grilldrive bracket to the CPU Hard Drivethat connect the hard stiffenerin front of the computer Turn the hard drivebracket so that it rests Pull the hard drive cableRemove the hard drive Using the pull tabAdjust the display so that it sits at an 80 angle insulatorLeft & Right Clutch Covers Palm Rest Hard Drive Power Supply BoardTake ApartPower Supply Board Before you begin, remove the following Batteryof the power supply board Power Supply BoardNote The connector is connector, grasp the topTake ApartHeatsink Left & Right Clutch Covers Palm Rest Hard Drive Power Supply BoardHeatsink Before you begin, remove the following BatteryNote The heat transfer tacky keep it clean so it doesHeatsink sponge on the heatsink isBefore you begin, remove the following Battery Ethernet or Ethernet/Modem CardEthernet or Ethernet/Modem Card Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillReplacement Note You Before you begin, remove the following Battery Take ApartLogic BoardHeatsink Ethernet or Ethernet/ Modem Card Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillDisconnect the display pins, lift the PCMCIAswitch board straight up cabledisconnect the LED Using your fingersconnector and gently guide the cable out of itsside of the bottom case to disconnect the fanSlightly pull out the left free the logic boardReplacement Note The Before you begin, remove the following Battery CPU StiffenerTake ApartCPU Stiffener Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill2 Using your fingers, slide Display Assemblyassembly consists of a metal CPU Stiffenerand lift it off the assembly forwardNote Turn the assembly around to perform the nextfrom the CPU stiffener from the center clutchcover Lift off the CPUfoot and release it 7 Using your finger, pushin the foot lever on each Take ApartReplacement Notes release lever locks the assembly into place Insert the foot/spring assembly into its opening on thefoot/spring assembly as far as it will go. Letting go of the Before installing the stiffener, make sure 1 the LEDBefore you begin, remove the following Battery Infrared Window BoardTake ApartInfrared Window & Board Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillEthernet or Ethernet falls out when you removeInfrared Window & Board Modem CardReplacement Notes the center tab and push the board back until it snaps into Before installing the CPU stiffener onto the bottom caseits 3 holding tabs on the bottom case. Align the notch with place underneath the window tabBefore you begin, remove the following Battery Media Bay LED Release MechanismMedia Bay LED & Release Mechanism Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillLED dislodges media bay crystal andgently pry up until the Display Assemblyconsists of a spring and mechanism assemblyNote The release plastic “hook and eye.”step, which frees the tightly installed release mechanismCaution The following from the bottom case, isInstall the spring onto its 2 pins on the release mechanism Mechanism ReplacementInstall the plastic “eye” onto its round notch on the bottom case Take ApartGently bend the LED cable to Cable Replacement Notestiffener is installed the right so that its con-nector rests outside the bottomTake Apart ADB DoorADB Door No preliminary steps are required2 Unhinge one side of the door, then the other 3 Lift off the door Note The ADB door is held in place by 2 pins on the bottom case1 Open the ADB door Take ApartTake Apart I/O DoorI/O Door No preliminary steps are required1 Placing a finger on each place by 2 pins on theNote The I/O door is held in side of the open I/O doorNote Removing the front feet is not necessary for further take-apart Front FeetFront Feet Take Apartremove the feet from the 1 With a flat-bladescrewdriver, pry up and grooves in the bottomBefore you begin, remove the following Battery Bottom CaseTake ApartBottom Case Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillMedia Bay LED & Release 2 Slide the reset actuatorBottom Case MechanismFloppy Drive Before you begin, remove the following Floppy Drive AssemblyFloppy Drive Take Apartfrom the floppy drive Using a #6 torx driverremove the 5 screws Lift the floppy drive outfloppy drive and the disconnect the floppydrive cable from the floppy drive boardReplacement Notes Make sure the metal plateis seated on the bottom Take Apartcable into its connectors Install the top caseInstall both ends of the Holding the assemblyDisplay Assembly Display AssemblyTake Apart Display Assembly Take ApartDisplay AssemblyFloppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch Covers Before you begin, remove the following Batterylogic board Gently disconnect thedisplay cable from the Display AssemblyLift off the display Replacement Notefrom the metal clutches Display Assemblythe screws undertightened. Remove the display assembly and loosentop case. If you can, this indicates the clutch screws are Display AssemblyBrightness & Speaker Grill Display Assembly Display HousingTake ApartDisplay Housing Before you begin, remove the following Batterystick, remove the Display Housing1 Using a plastic swizzle product name platesscrews from the bezel 2 Remove the 2 bumpersand 4 interchangeable Display Housing3 Starting at the clutch end of the display housinghousing use a flat-bladeReplacement Note Take ApartLatch Brightness & Speaker Grill Display Assembly Display HousingLatch Before you begin, remove the following BatteryLatch display assembly. Removalscrews are installed Note It’s a good idea toBefore you begin, remove the following Battery Display FrameTake ApartDisplay Frame Floppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch CoversTake Apart Display Framefrom the display frame Remove the2 Using your fingers, disconnect the sleep LED connector 3 Using your fingers, disconnect the 2 speaker connectorsTake ApartDisplay Frame release the 6 tabs Using your fingers or aflat-blade screwdriver frameReplacement Notes Wrap the cables around wiresaligned, install the their guide posts andBefore you begin, remove the following Battery Inverter BoardTake ApartInverter Board Floppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch Covers3 Set the inverter frame aside Take ApartInverter BoardReplacement Notes display, connect the Holding the inverterframe slightly above the backlight and display“M-shaped” guide line on Precisely align theinverter frame with the the display shieldTake ApartDisplay Cable Display Frame Inverter Board Note For this procedure itDisplay Cable Before you begin, remove the following Battery1 Using a swizzle stick Review the precaution foraluminum, where specified Display CableTake Apart Dispose of the tapecable from the display Display CablePeel back the kapton tape Gently pull themicrophone off the bezel from the “Y” section offrom the right clutch holding pins, slide it toUnwrap the display cable Lift the cable off its twoReplacement Notes Display Frame Inverter Board Display Cable DisplayTake ApartDisplay Before you begin, remove the following Batterythe bezel Display1 Remove the display from Take ApartReplacement Notes Take ApartDisplay Before you begin, remove the following Battery ClutchTake ApartClutch Floppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch Covers2 Lift each interchangeable clutch off its pins 1 Carefully fold up the clutch grounding tabs on the display shieldTake ApartClutch Floppy or CD-ROM Mechanism Keyboard Left & Right Clutch Covers BezelTake ApartBezel Display Frame Inverter Board Display Cable DisplayNote Removal of the LED is BezelClutch only necessary if you areAdditional Procedures K Service SourcePowerBook 3400c/PowerBook G3 Battery Verification Power Adapter Verification the level indicator button to activate the indicator lightsAdditional Procedures Backup Battery Verification replace the backup battery To recharge the backup battery, leave the PowerBookIf the backup battery appears dead or will not charge plugged in for 48 hours. It is ok to use it while it isPRAM and Power Manager Reset Resetting PRAMIf the PowerBook emits multiple chimes when you are Power on the computer by pressing the Power keyImmediately hold down the Option-Command-P-R keys holding down the Option-Command-P-R keys, skip toAdditional Procedures PRAM and Power Manager ResetResetting the Power Manager Battery Gasket Installation Paper Backing Tacky Surface Wood Applicator GasketBacking Battery BayPaper Gasket5 Press the gasket onto the battery baymetal surface above it Additional ProceduresBurnish Exploded View K Service SourcePowerBook 3400c/PowerBook G3 Logic Bottom & Display AssemblyExploded View BoardDisplay Housing Right Display Housing Grill Display Frame Bottom & Display AssemblyLeft Display Housing Grill 922-2480 Display 661-1236 CPRC/Intl Only Exploded View

Using your fingers,

disconnect the LED

connector and gently

guide the cable out of its

5 tabs on the CPU