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PowerBook 3400c/ PowerBook G3
PowerBook 3400c/180, 3400c/200, and PowerBook G3
PowerBook 3400/G3
Hot Issues
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Overview
PowerBook 3400 Modem Driver Update
Since many users believed these issues were heat-related
Solution These problems are not heat-related. To address
these situations, Apple has released a modem driver update
driver should resolve the issues and prevent needless
installation instructions
PB 3400 Modem Driver Update.img
PB 3400 Modem Driver Update Info
This revision will be supported when it is rolled into the
PowerBook 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 number
076-0706. The installation is a warranty repair
“Battery Gasket Installation” in the Additional Procedures
Basics
PowerBook 3400c/PowerBook G3
K Service Source
Basics
PowerBook 3400c
Product Overview
Product Overview
PowerBook G3
PowerBook 3400c/180 February ‘97
System Configurations
PowerBook 3400c/200 February ‘97
PowerBook 3400c/240 March ‘97
PowerBook G3 November ‘97
Repair Strategy
Ordering
USA Ordering
Basics
Canadian Ordering
Repair Strategy
US Only
Warranty/AppleCare/ARIS
Canada Only
Volume Control Sleep Indicator Microphone Stereo Speakers
View of Front and Right Side
Expansion Bay Drive Light Security Slot Battery
View of Rear and Left Side
Logic Board
connectors
Logic Board
The logic board includes
Signal Name
Signals on the Video Connector
Description
Battery Information
Main Battery
Optional Battery
Battery Handling Guidelines
Do not leave a battery in the computer for longer than a
Safety
Handle the battery carefully. Do not drop, puncture
week without plugging in the power adapter
PC 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 slot
Card. When the computer is in sleep mode, a PC Card
cannot be used
about an inch more and then push it back in. If you don’t
follow this procedure and try to push the card back in to
If you want to use the card again immediately, pull it out
use it again, the card will not engage properly
Specifications
PowerBook 3400c /PowerBook G3
K Service Source
Introduction
PowerBook G3
PowerBook 3400c
PowerPC 603e microprocessor running at 180, 200, or
PowerPC G3 microprocessor running at 250 MHz
Memory
Memory
VRAM
16 MB EDO RAM, expandable to 144 MB
Disk Storage
PowerBook 3400c PowerBook G3
Floppy Drive Hard Drives CD-ROM Drives
I/O Interfaces
SCSI PC Cards ADB
Sound
Serial
Infrared
Connector on side panel allows users to attach security device
Power Adapter
Power adapter port
also secures battery and any module in expansion bay
Expansion Interfaces
Expansion Interfaces
Expansion Bay
Specifications
I/O Devices
I/O Devices
Keyboard Trackpad Microphone
19-mm vertical and horizontal pitch Integrated, solid-state trackpad
Video
Video
Display
12.1 diagonal, 800 x 600 active matrix color SVGA thousands of
Electrical
Main Battery Power Adapter Backup Battery
Electrical
100-240 VAC line voltage, 50-60 Hz
7.2 lb. 3.2 kg with floppy drive installed
Dimensions
Weight
7.4 lb. 3.3 kg with CD-ROM drive installed
Operating Altitude Shipping/Non- Operating Altitude
Operating Temperature Storage Temperature Relative Humidity
Environmental
Environmental
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Troubleshooting
PowerBook 3400c/PowerBook G3
General
Symptom Charts
Startup
Upgrade to System Enabler 1.2.1 or later. Refer to Apple Software
Reset PRAM
error chord sequence
occurs when using
Power
Screen
Replace backup battery
Check keyboard and backup battery cables and connections
battery, some Control
Panel settings are
When Shutdown is
Verify that power adapter is connected correctly
Power
selected with power
low-power
Low-power warning
Attach power adapter and recharge battery
backlight or other power-consuming devices. Or, reconnect
Video
Display
operate
Adjust screen brightness setting
Backlight doesn’t
Verify that backlight cable connection is secure
Connect power adapter
mode, reset power manager
Insert disk into floppy drive and press Command-e eject
Note If sleep light is blinking and computer is not in sleep
PowerBook shows
PowerBook shows no
Verify monitor using another computer
Thin white line is
Sound
Floppy Drive
Try known-good system disk
booting display
ejects while
Disk
Disk does not eject
Switch off system and hold trackpad button down while you
switch system on
Eject disk manually by carefully inserting opened paper clip
Try to format a floppy disk
error
Read/write/copy
Troubleshooting
Hard Drive
CD-ROM Drive
present, but CD-ROM
Symptom Charts/CD-ROM Drive
Try known-good CD-ROM disc
Check CD-ROM drive cable connections inside CD-ROM
PC Card Module PCMCIA
Troubleshooting
System with PC card Replace logic board. performs poorly or
hangs during floppy drive operations
Symptom Charts/PC Card Module PCMCIA
Verify infrared signal is being received by host computer
TroubleshootingSymptom Charts/Infrared Communication
Clean infrared window with soft lint-free cloth
Infrared Communication
Peripherals
when you are using
Symptom Charts/Peripherals
Shut down computer, unplug adapter, and remove battery. Let
Connect low-power mouse and try to move cursor. If cursor
Note User must touch trackpad with the surface of only one
Clean trackpad surface with computer off, using a non
intermittently
does not move or
moves, but
Try a known-good low-power mouse. If the known-good
mouse works, clean mouse ball and inside of original mouse
clicking trackpad
Update Serial DMA extension to version 2.1 or higher
Reset the power manager
Check keyboard connection by disconnecting and reconnecting
Verify that computer is on
Known
unrecognized, or
Verify that SCSI select switch setting on external device is
I/O devices are
garbage is
Miscellaneous
Troubleshooting
Troubleshooting Flowchart-Startup Problems
Troubleshooting Flowchart-Startup Problems
START
Troubleshooting
Symptom Charts/Miscellaneous
Troubleshooting Flowchart-Startup Problems
2. Boot with Disk Tools Update Driver
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Take Apart
PowerBook 3400c /PowerBook G3
Take ApartTools
Dental pick for opening flex connectors
Tools
Use the following tools for taking apart these computers
Screws
Bottom Case Assembly
Bottom Case Assembly
Take Apart
Before you begin, unplug the power adapter
Battery
Battery
Take Apart
You must install the battery
the battery out of the
Replacement Caution
before connecting the power
No preliminary steps are required
Floppy Drive Assembly
Floppy Drive Assembly
Note Media bay devices require approximately 7 lb. pull strength
forward
assembly by its ridged
1 Slide the release button
Caution Grasp the ridged
Floppy Drive Assembly
Media bay tolerances are tight
Align media bay devices carefully before inserting them into the bay
Replacement Caution
Take Apart
CD-ROM Drive Assembly
CD-ROM Drive Assembly
No preliminary steps are required
it, turn the unit upside
assembly without damaging
Caution To remove the
down, as shown
Take Apart
CD-ROM Drive Assembly
Replacement Caution
Media bay tolerances are tight
Keyboard
Before you begin, remove the following Battery
Floppy or CD-ROM Drive Assembly
Take ApartKeyboard
turn it upside down
Keyboard
Close the computer and
Remove the
Take Apart
Open the computer
Keyboard
Take ApartKeyboard 5 Gently turn the keyboard onto the palm rest
Replacement Note As you
RAM Card
Before you begin, remove the following Battery Floppy Drive Keyboard
Take ApartRAM Card
Take Apart
RAM Card
RAM Card
Take ApartBrightness & Speaker Grill
Floppy or CD-ROM Drive Assembly Keyboard
Brightness Speaker Grill
Before you begin, remove the following Battery
Brightness & Speaker Grill
Using a dental pick
connector
detach the brightness
Replacement Caution
Take ApartLeft & Right Clutch Covers
Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill
Left & Right Clutch Covers
Before you begin, remove the following Battery
assembly
assembly at 170 from
display. Using a
Left & Right Clutch Covers
under the clutch cover tabs
Replacement Note Install the palm rest before installing
the right & left clutch covers. The tabs on the palm rest fit
Take Apart
Before you begin, remove the following Battery
Palm Rest
Take ApartPalm Rest
Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill
the palm rest and pull it
Palm Rest
Grasp the right corner of
Grasp the top ridge of the
detach the trackpad
4 Using a dental pick
Replacement Notes
connector
Left & Right Clutch Covers Palm Rest
Trackpad
Take ApartTrackpad
Before you begin, remove the following Battery
button in place
Trackpad
that hold the trackpad
Take Apart
Page
Take Apart
Note Use a nonstatic inducing material to clean the
trackpad surface, making sure the computer is off
Trackpad
Before you begin, remove the following Battery
Sleep Actuator
Take ApartSleep Actuator
Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill
1 Remove the screw that
holds the closure switch
Sleep Actuator
in place
screwdriver behind the
pins
Place a flat-blade
actuator and push the
Before you begin, remove the following Battery
Hard Drive
Take ApartHard Drive
Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill
drive bracket to the CPU
Hard Drive
that connect the hard
stiffener
in front of the computer
Turn the hard drive
bracket so that it rests
Pull the hard drive cable
Remove the hard drive
Using the pull tab
Adjust the display so that it sits at an 80 angle
insulator
Left & Right Clutch Covers Palm Rest Hard Drive
Power Supply Board
Take ApartPower Supply Board
Before you begin, remove the following Battery
of the power supply board
Power Supply Board
Note The connector is
connector, grasp the top
Take ApartHeatsink
Left & Right Clutch Covers Palm Rest Hard Drive Power Supply Board
Heatsink
Before you begin, remove the following Battery
Note The heat transfer
tacky keep it clean so it does
Heatsink
sponge on the heatsink is
Before you begin, remove the following Battery
Ethernet or Ethernet/Modem Card
Ethernet or Ethernet/Modem Card
Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill
Replacement Note You
Before you begin, remove the following Battery
Take ApartLogic Board
Heatsink Ethernet or Ethernet/ Modem Card
Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill
Disconnect the display
pins, lift the PCMCIA
switch board straight up
cable
disconnect the LED
Using your fingers
connector and gently
guide the cable out of its
side of the bottom case to
disconnect the fan
Slightly pull out the left
free the logic board
Replacement Note The
Before you begin, remove the following Battery
CPU Stiffener
Take ApartCPU Stiffener
Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill
2 Using your fingers, slide
Display Assembly
assembly consists of a metal
CPU Stiffener
and lift it off
the assembly forward
Note Turn the assembly
around to perform the next
from the CPU stiffener
from the center clutch
cover
Lift off the CPU
foot and release it
7 Using your finger, push
in the foot lever on each
Take Apart
Replacement Notes
release lever locks the assembly into place
Insert the foot/spring assembly into its opening on the
foot/spring assembly as far as it will go. Letting go of the
Before installing the stiffener, make sure 1 the LED
Before you begin, remove the following Battery
Infrared Window Board
Take ApartInfrared Window & Board
Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill
Ethernet or Ethernet
falls out when you remove
Infrared Window & Board
Modem Card
Replacement Notes
the center tab and push the board back until it snaps into
Before installing the CPU stiffener onto the bottom case
its 3 holding tabs on the bottom case. Align the notch with
place underneath the window tab
Before you begin, remove the following Battery
Media Bay LED Release Mechanism
Media Bay LED & Release Mechanism
Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill
LED dislodges
media bay crystal and
gently pry up until the
Display Assembly
consists of a spring and
mechanism assembly
Note The release
plastic “hook and eye.”
step, which frees the tightly
installed release mechanism
Caution The following
from the bottom case, is
Install the spring onto its 2 pins on the release mechanism
Mechanism Replacement
Install the plastic “eye” onto its round notch on the bottom case
Take Apart
Gently bend the LED cable to
Cable Replacement Note
stiffener is installed
the right so that its con-nector rests outside the bottom
Take Apart
ADB Door
ADB Door
No preliminary steps are required
2 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 case
1 Open the ADB door
Take Apart
Take Apart
I/O Door
I/O Door
No preliminary steps are required
1 Placing a finger on each
place by 2 pins on the
Note The I/O door is held in
side of the open I/O door
Note Removing the front feet is not necessary for further take-apart
Front Feet
Front Feet
Take Apart
remove the feet from the
1 With a flat-blade
screwdriver, pry up and
grooves in the bottom
Before you begin, remove the following Battery
Bottom Case
Take ApartBottom Case
Floppy or CD-ROM Drive Assembly Keyboard Brightness & Speaker Grill
Media Bay LED & Release
2 Slide the reset actuator
Bottom Case
Mechanism
Floppy Drive
Before you begin, remove the following Floppy Drive Assembly
Floppy Drive
Take Apart
from the floppy drive
Using a #6 torx driver
remove the 5 screws
Lift the floppy drive out
floppy drive and the
disconnect the floppy
drive cable from the
floppy drive board
Replacement Notes
Make sure the metal plate
is seated on the bottom
Take Apart
cable into its connectors
Install the top case
Install both ends of the
Holding the assembly
Display Assembly
Display Assembly
Take Apart
Display Assembly
Take ApartDisplay Assembly
Floppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch Covers
Before you begin, remove the following Battery
logic board
Gently disconnect the
display cable from the
Display Assembly
Lift off the display
Replacement Note
from the metal clutches
Display Assembly
the screws
undertightened. Remove the display assembly and loosen
top case. If you can, this indicates the clutch screws are
Display Assembly
Brightness & Speaker Grill Display Assembly
Display Housing
Take ApartDisplay Housing
Before you begin, remove the following Battery
stick, remove the
Display Housing
1 Using a plastic swizzle
product name plates
screws from the bezel
2 Remove the 2 bumpers
and 4 interchangeable
Display Housing
3 Starting at the clutch end
of the display housing
housing
use a flat-blade
Replacement Note
Take ApartLatch
Brightness & Speaker Grill Display Assembly Display Housing
Latch
Before you begin, remove the following Battery
Latch
display assembly. Removal
screws are installed
Note It’s a good idea to
Before you begin, remove the following Battery
Display Frame
Take ApartDisplay Frame
Floppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch Covers
Take Apart
Display Frame
from the display frame
Remove the
3 Using your fingers, disconnect the 2 speaker connectors
2 Using your fingers, disconnect the sleep LED connector
Take ApartDisplay Frame
release the 6 tabs
Using your fingers or a
flat-blade screwdriver
frame
Replacement Notes
Wrap the cables around
wires
aligned, install the
their guide posts and
Before you begin, remove the following Battery
Inverter Board
Take ApartInverter Board
Floppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch Covers
3 Set the inverter frame aside
Take ApartInverter Board
Replacement Notes
display, connect the
Holding the inverter
frame slightly above the
backlight and display
“M-shaped” guide line on
Precisely align the
inverter frame with the
the display shield
Take ApartDisplay Cable
Display Frame Inverter Board Note For this procedure it
Display Cable
Before you begin, remove the following Battery
1 Using a swizzle stick
Review the precaution for
aluminum, where specified
Display Cable
Take Apart
Dispose of the tape
cable from the display
Display Cable
Peel back the kapton tape
Gently pull the
microphone off the bezel
from the “Y” section of
from the right clutch
holding pins, slide it to
Unwrap the display cable
Lift the cable off its two
Replacement Notes
Display Frame Inverter Board Display Cable
Display
Take ApartDisplay
Before you begin, remove the following Battery
the bezel
Display
1 Remove the display from
Take Apart
Take Apart
Replacement Notes
Display
Before you begin, remove the following Battery
Clutch
Take ApartClutch
Floppy or CD-ROM Drive Assembly Keyboard Left & Right Clutch Covers
1 Carefully fold up the clutch grounding tabs on the display shield
2 Lift each interchangeable clutch off its pins
Take ApartClutch
Floppy or CD-ROM Mechanism Keyboard Left & Right Clutch Covers
Bezel
Take ApartBezel
Display Frame Inverter Board Display Cable Display
Note Removal of the LED is
Bezel
Clutch
only necessary if you are
K Service Source
Additional Procedures
PowerBook 3400c/PowerBook G3
Battery Verification
the level indicator button to activate the indicator lights
Power Adapter Verification
Additional Procedures
Backup Battery Verification
replace the backup battery
To recharge the backup battery, leave the PowerBook
If the backup battery appears dead or will not charge
plugged in for 48 hours. It is ok to use it while it is
PRAM and Power Manager Reset
Resetting PRAM
If the PowerBook emits multiple chimes when you are
Power on the computer by pressing the Power key
Immediately hold down the Option-Command-P-R keys
holding down the Option-Command-P-R keys, skip to
Additional Procedures
PRAM and Power Manager Reset
Resetting the Power Manager
Battery Gasket Installation
Paper Backing Tacky Surface Wood Applicator Gasket
Backing
Battery Bay
Paper
Gasket
5 Press the gasket onto
the battery bay
metal surface above it
Additional Procedures
Burnish
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Exploded View
PowerBook 3400c/PowerBook G3
Logic
Bottom & Display Assembly
Exploded View
Board
Display Housing Right Display Housing Grill Display Frame
Bottom & Display Assembly
Left Display Housing Grill 922-2480 Display 661-1236 CPRC/Intl Only
Exploded View
Take ApartPower Supply Board - 39