Manuals / Apple / Computer Equipment / Computer Accessories

Apple 3400C/200 Thin white line is, always on at middle of, screen, An external monitor, board

Models: 3400C/200 G3

1 210

Page 57

	Troubleshooting		Symptom Charts/Video - 13
Thin white line is		1	Change the desktop pattern; if the line remains, replace display.
always on at middle of
screen
An external monitor		1	Verify cable and cable connections between monitor and video
connected to the			board.
PowerBook shows no
video
An external monitor		1	Verify monitor using another computer.
connected to the		2	Replace logic board.
PowerBook shows
either horizontal or
vertical rolling, or
horizontal or vertical
distortion

Page 57

Image 57

Apple 3400C/200 Thin white line is, Change the desktop pattern if the line remains, replace display, screen, board, video

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 these situations, Apple has released a modem driver update Solution These problems are not heat-related. To addressSince many users believed these issues were heat-related driver should resolve the issues and prevent needlessPB 3400 Modem Driver Update Info PB 3400 Modem Driver Update.imginstallation instructions 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 8/97 076-0706. The installation is a warranty repair customers and can order the kit as service part numberFor instructions on installing the Battery Gasket, see “Battery Gasket Installation” in the Additional ProceduresPowerBook 3400c/PowerBook G3 BasicsK Service Source Product Overview PowerBook 3400cBasics Product OverviewPowerBook G3 System Configurations PowerBook 3400c/180 February ‘97PowerBook 3400c/200 February ‘97 PowerBook G3 November ‘97 PowerBook 3400c/240 March ‘97Ordering Repair StrategyUSA 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 Battery Handling Guidelines Optional BatteryHandle the battery carefully. Do not drop, puncture SafetyDo not leave a battery in the computer for longer than a week without plugging in the power adapterPC Card Handling Card. When the computer is in sleep mode, a PC Card When a Type III card is in the lower slot, the upper slotCard unit. Type III cards can only be placed in the lower slot cannot be usedIf you want to use the card again immediately, pull it out follow this procedure and try to push the card back in toabout an inch more and then push it back in. If you don’t use it again, the card will not engage properlyPowerBook 3400c /PowerBook G3 SpeciﬁcationsK Service Source Introduction PowerPC 603e microprocessor running at 180, 200, or PowerBook 3400cPowerBook G3 PowerPC G3 microprocessor running at 250 MHzVRAM MemoryMemory 16 MB EDO RAM, expandable to 144 MBPowerBook 3400c PowerBook G3 Disk StorageFloppy Drive Hard Drives CD-ROM Drives SCSI PC Cards ADB I/O InterfacesSerial SoundInfrared Power adapter port Power AdapterConnector on side panel allows users to attach security device also secures battery and any module in expansion bayExpansion Bay Expansion InterfacesExpansion Interfaces SpecificationsKeyboard Trackpad Microphone I/O DevicesI/O Devices 19-mm vertical and horizontal pitch Integrated, solid-state trackpadDisplay VideoVideo 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 HzWeight Dimensions7.2 lb. 3.2 kg with floppy drive installed 7.4 lb. 3.3 kg with CD-ROM drive installedEnvironmental Operating Temperature Storage Temperature Relative HumidityOperating Altitude Shipping/Non- Operating Altitude EnvironmentalTroubleshooting K Service SourcePowerBook 3400c/PowerBook G3 General Startup Symptom Chartserror chord sequence Reset PRAMUpgrade to System Enabler 1.2.1 or later. Refer to Apple Software occurs when usingPower Screen battery, some Control Check keyboard and backup battery cables and connectionsReplace backup battery Panel settings arePower Verify that power adapter is connected correctlyWhen Shutdown is selected with powerAttach power adapter and recharge battery Low-power warninglow-power backlight or other power-consuming devices. Or, reconnectVideo Display Backlight doesn’t Adjust screen brightness settingoperate Verify that backlight cable connection is secureInsert disk into floppy drive and press Command-e eject mode, reset power managerConnect power adapter Note If sleep light is blinking and computer is not in sleepVerify monitor using another computer PowerBook shows noPowerBook shows Thin white line isSound Floppy Drive ejects while booting displayTry known-good system disk Diskswitch system on Switch off system and hold trackpad button down while youDisk does not eject Eject disk manually by carefully inserting opened paper clipRead/write/copy errorTry to format a floppy disk TroubleshootingHard Drive CD-ROM Drive Try known-good CD-ROM disc Symptom Charts/CD-ROM Drivepresent, but CD-ROM Check CD-ROM drive cable connections inside CD-ROMPC Card Module PCMCIA hangs during floppy drive operations System with PC card Replace logic board. performs poorly orTroubleshooting Symptom Charts/PC Card Module PCMCIAClean infrared window with soft lint-free cloth TroubleshootingSymptom Charts/Infrared CommunicationVerify infrared signal is being received by host computer Infrared CommunicationPeripherals Shut down computer, unplug adapter, and remove battery. Let Symptom Charts/Peripheralswhen you are using Connect low-power mouse and try to move cursor. If cursorintermittently Clean trackpad surface with computer off, using a nonNote User must touch trackpad with the surface of only one does not move ormouse works, clean mouse ball and inside of original mouse Try a known-good low-power mouse. If the known-goodmoves, but clicking trackpadCheck keyboard connection by disconnecting and reconnecting Reset the power managerUpdate Serial DMA extension to version 2.1 or higher Verify that computer is onKnown I/O devices are Verify that SCSI select switch setting on external device isunrecognized, or garbage isMiscellaneous Troubleshooting Flowchart-Startup Problems Troubleshooting Flowchart-Startup ProblemsTroubleshooting STARTTroubleshooting Flowchart-Startup Problems Symptom Charts/MiscellaneousTroubleshooting 2. Boot with Disk Tools Update DriverTake Apart K Service SourcePowerBook 3400c /PowerBook G3 Tools Dental pick for opening flex connectorsTake ApartTools Use the following tools for taking apart these computersScrews Bottom Case Assembly Bottom Case AssemblyTake Apart Battery BatteryBefore you begin, unplug the power adapter Take ApartReplacement Caution the battery out of theYou must install the battery before connecting the powerFloppy Drive Assembly Floppy Drive AssemblyNo preliminary steps are required Note Media bay devices require approximately 7 lb. pull strength1 Slide the release button assembly by its ridgedforward Caution Grasp the ridgedAlign media bay devices carefully before inserting them into the bay Media bay tolerances are tightFloppy Drive Assembly Replacement CautionCD-ROM Drive Assembly CD-ROM Drive AssemblyTake Apart No preliminary steps are requiredCaution To remove the assembly without damagingit, turn the unit upside down, as shownReplacement Caution CD-ROM Drive AssemblyTake Apart Media bay tolerances are tightFloppy or CD-ROM Drive Assembly Before you begin, remove the following BatteryKeyboard Take ApartKeyboardClose the computer and Keyboardturn it upside down 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 Brightness Speaker Grill Floppy or CD-ROM Drive Assembly KeyboardTake ApartBrightness & Speaker Grill Before you begin, remove the following Batteryconnector Using a dental pickBrightness & Speaker Grill detach the brightnessReplacement Caution Left & Right Clutch Covers Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillTake ApartLeft & Right Clutch Covers Before you begin, remove the following Batterydisplay. Using a assembly at 170 fromassembly Left & Right Clutch Coversthe right & left clutch covers. The tabs on the palm rest fit Replacement Note Install the palm rest before installingunder the clutch cover tabs Take ApartTake ApartPalm Rest Palm RestBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillGrasp the right corner of Palm Restthe palm rest and pull it Grasp the top ridge of theReplacement Notes 4 Using a dental pickdetach the trackpad connectorTake ApartTrackpad TrackpadLeft & Right Clutch Covers Palm Rest Before you begin, remove the following Batterythat hold the trackpad Trackpadbutton in place Take ApartPage trackpad surface, making sure the computer is off Note Use a nonstatic inducing material to clean theTake Apart TrackpadTake ApartSleep Actuator Sleep ActuatorBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillSleep Actuator holds the closure switch1 Remove the screw that in placePlace a flat-blade pinsscrewdriver behind the actuator and push theTake ApartHard Drive Hard DriveBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grillthat connect the hard Hard Drivedrive bracket to the CPU stiffenerbracket so that it rests Turn the hard drivein front of the computer Pull the hard drive cableAdjust the display so that it sits at an 80 angle Using the pull tabRemove the hard drive insulatorTake ApartPower Supply Board Power Supply BoardLeft & Right Clutch Covers Palm Rest Hard Drive Before you begin, remove the following BatteryNote The connector is Power Supply Boardof the power supply board connector, grasp the topHeatsink Left & Right Clutch Covers Palm Rest Hard Drive Power Supply BoardTake ApartHeatsink Before you begin, remove the following BatteryHeatsink tacky keep it clean so it doesNote The heat transfer sponge on the heatsink isEthernet or Ethernet/Modem Card Ethernet or Ethernet/Modem CardBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillReplacement Note You Heatsink Ethernet or Ethernet/ Modem Card Take ApartLogic BoardBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grillswitch board straight up pins, lift the PCMCIADisconnect the display cableconnector and gently Using your fingersdisconnect the LED guide the cable out of itsSlightly pull out the left disconnect the fanside of the bottom case to free the logic boardReplacement Note The Take ApartCPU Stiffener CPU StiffenerBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grillassembly consists of a metal Display Assembly2 Using your fingers, slide CPU StiffenerNote Turn the assembly the assembly forwardand lift it off around to perform the nextcover from the center clutchfrom the CPU stiffener Lift off the CPUin the foot lever on each 7 Using your finger, pushfoot and release it Take ApartReplacement Notes foot/spring assembly as far as it will go. Letting go of the Insert the foot/spring assembly into its opening on therelease lever locks the assembly into place Before installing the stiffener, make sure 1 the LEDTake ApartInfrared Window & Board Infrared Window BoardBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillInfrared Window & Board falls out when you removeEthernet or Ethernet Modem CardReplacement Notes its 3 holding tabs on the bottom case. Align the notch with Before installing the CPU stiffener onto the bottom casethe center tab and push the board back until it snaps into place underneath the window tabMedia Bay LED & Release Mechanism Media Bay LED Release MechanismBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grillgently pry up until the media bay crystal andLED dislodges Display AssemblyNote The release mechanism assemblyconsists of a spring and plastic “hook and eye.”Caution The following installed release mechanismstep, which frees the tightly from the bottom case, isInstall the plastic “eye” onto its round notch on the bottom case Mechanism ReplacementInstall the spring onto its 2 pins on the release mechanism Take Apartstiffener is installed Cable Replacement NoteGently bend the LED cable to the right so that its con-nector rests outside the bottomADB Door ADB DoorTake Apart No preliminary steps are required1 Open the ADB door Note The ADB door is held in place by 2 pins on the bottom case2 Unhinge one side of the door, then the other 3 Lift off the door Take ApartI/O Door I/O DoorTake Apart No preliminary steps are requiredNote The I/O door is held in place by 2 pins on the1 Placing a finger on each side of the open I/O doorFront Feet Front FeetNote Removing the front feet is not necessary for further take-apart Take Apartscrewdriver, pry up and 1 With a flat-bladeremove the feet from the grooves in the bottomTake ApartBottom Case Bottom CaseBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker GrillBottom Case 2 Slide the reset actuatorMedia Bay LED & Release MechanismFloppy Drive Before you begin, remove the following Floppy Drive AssemblyFloppy Drive Take Apartremove the 5 screws Using a #6 torx driverfrom the floppy drive Lift the floppy drive outdrive cable from the disconnect the floppyfloppy drive and the floppy drive boardis seated on the bottom Make sure the metal plateReplacement Notes Take ApartInstall both ends of the Install the top casecable into its connectors Holding the assemblyDisplay Assembly Display AssemblyTake Apart Floppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch Covers Take ApartDisplay AssemblyDisplay Assembly Before you begin, remove the following Batterydisplay cable from the Gently disconnect thelogic board Display Assemblyfrom the metal clutches Replacement NoteLift off the display Display Assemblytop case. If you can, this indicates the clutch screws are undertightened. Remove the display assembly and loosenthe screws Display AssemblyTake ApartDisplay Housing Display HousingBrightness & Speaker Grill Display Assembly Before you begin, remove the following Battery1 Using a plastic swizzle Display Housingstick, remove the product name platesand 4 interchangeable 2 Remove the 2 bumpersscrews from the bezel Display Housinghousing of the display housing3 Starting at the clutch end use a flat-bladeReplacement Note Latch Brightness & Speaker Grill Display Assembly Display HousingTake ApartLatch Before you begin, remove the following Batteryscrews are installed display assembly. RemovalLatch Note It’s a good idea toTake ApartDisplay Frame Display FrameBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch Coversfrom the display frame Display FrameTake Apart Remove the2 Using your fingers, disconnect the sleep LED connector 3 Using your fingers, disconnect the 2 speaker connectorsTake ApartDisplay Frame flat-blade screwdriver Using your fingers or arelease the 6 tabs frameReplacement Notes aligned, install the wiresWrap the cables around their guide posts andTake ApartInverter Board Inverter BoardBefore you begin, remove the following Battery Floppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch CoversTake ApartInverter Board 3 Set the inverter frame asideReplacement Notes frame slightly above the Holding the inverterdisplay, connect the backlight and displayinverter frame with the Precisely align the“M-shaped” guide line on the display shieldDisplay Cable Display Frame Inverter Board Note For this procedure itTake ApartDisplay Cable Before you begin, remove the following Batteryaluminum, where specified Review the precaution for1 Using a swizzle stick Display Cablecable from the display Dispose of the tapeTake Apart Display Cablemicrophone off the bezel Gently pull thePeel back the kapton tape from the “Y” section ofUnwrap the display cable holding pins, slide it tofrom the right clutch Lift the cable off its twoReplacement Notes Take ApartDisplay DisplayDisplay Frame Inverter Board Display Cable Before you begin, remove the following Battery1 Remove the display from Displaythe bezel Take ApartReplacement Notes Take ApartDisplay Take ApartClutch ClutchBefore you begin, remove the following Battery 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 Take ApartBezel BezelFloppy or CD-ROM Mechanism Keyboard Left & Right Clutch Covers Display Frame Inverter Board Display Cable DisplayClutch BezelNote Removal of the LED is 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 If the backup battery appears dead or will not charge To recharge the backup battery, leave the PowerBookreplace the backup battery plugged in for 48 hours. It is ok to use it while it isResetting PRAM PRAM and Power Manager ResetImmediately hold down the Option-Command-P-R keys Power on the computer by pressing the Power keyIf the PowerBook emits multiple chimes when you are holding down the Option-Command-P-R keys, skip toPRAM and Power Manager Reset Additional ProceduresResetting the Power Manager Paper Backing Tacky Surface Wood Applicator Gasket Battery Gasket InstallationPaper Battery BayBacking Gasketmetal surface above it the battery bay5 Press the gasket onto Additional ProceduresBurnish Exploded View K Service SourcePowerBook 3400c/PowerBook G3 Exploded View Bottom & Display AssemblyLogic BoardLeft Display Housing Grill 922-2480 Display 661-1236 CPRC/Intl Only Bottom & Display AssemblyDisplay Housing Right Display Housing Grill Display Frame Exploded View

Thin white line is

Change the desktop pattern; if the line remains, replace display.

always on at middle of

screen

An external monitor

Verify cable and cable connections between monitor and video

connected to the

board.

PowerBook shows no

video

Verify monitor using another computer.

PowerBook shows

either horizontal or

vertical rolling, or

horizontal or vertical

distortion