FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
GENERAL INFORMATION
Tools Required for Proper
Disassembly and Reassembly:
1. Phillips Screwdriver (Size 0&1)
2. Flat head Screwdriver
3. Security Torx (Size 7)
4. Case Separator
5. ESD Wrist Strap
6. ESD mats
7. Tweezers
Before attempting any of the following procedures,
make sure that the main battery and AC adaptor is
not connected to the unit and the environment in
which you are working on is protected from
Electro-Static Discharge(ESD).
TOSHIBA
Tough Enough for Todays World.
FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
TABLE OF CONTENTS:
1. BATTERY PACK REMOVAL
2. OPTIONAL PC CARD REMOVAL
3. SELECT BAY REMOVAL
4. CD-R/W/DVD-ROM DRIVE DISASSEMBLY
5. WIRELESS LAN CARD REMOVAL
6. BLUETOOTH CARD REMOVAL
7. HDD REMOVAL
8. KEYBOARD REMOVAL
9. MEMORY MODULE REMOVAL
10 MEMBRANE SWITCH REMOVAL
11. LCD ASSEMBLY REMOVAL
12. AUDIO/INFRA RED BOARD REMOVAL
13. MODEM BOARD REMOVAL
14. RTC BATTERY REMOVAL
15. WIRELESS SWITCH BOARD REMOVAL
16. TOP PCB REMOVAL
17. BOTTOM PCB REMOVAL
18. SPEAKERS REMOVAL
19. 12 DISPLAY MASK REMOVAL
20. FL INVERTER AND 12 LCD REMOVAL
TOSHIBA
Tough Enough for Todays World.
FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
BATTERY PACK REMOVAL
OPTIONAL PC CARD REMOVAL
Battery
Pack
Release
lever
PC card
Eject button
1. Turn the computer upside down as shown.
2. Slide the battery release lever in the direction of the
arrow.
3. Lift out the battery.
SELECT BAY REMOVAL
1. Press the eject button of the PC Card you want to
remove.
2. Press the eject button to pop the PC Card out.
3. Grasp the PC card and remove it.
NOTE: Before removing any PCCard device, make sure
it is STOPPED in the PC Card manager.
CD-R/W/DVD-ROM DRIVE DISASSEMBLY
CD-R/W/DVD-ROM
drive
Base cover
Select bay
device
Release lever
1. Turn the computer upside down.
2. Slide the release lever in the direction of the arrow.
3. Pull out the select bay device in the direction of the
arrow.
Connector
M2x3 silver
screws
M2x8 silver
Connector cover
screws
1. Remove five M2x3 silver screws securing the
base cover and lift off the base cover.
2. Remove two M2x8 silver screws securing the
connector cover.
3. Remove the connector and the connector cover
from the CD-R/W/DVD-ROM drive.
TOSHIBA
Tough Enough for Todays World.
FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
WIRELESS LAN CARD REMOVAL
Glass
tape
Mini-PCI
connector
clips
M2.5x4 security torx screws
Mini PCI cover
1. Remove two M2x4 security torx screws securing
the mini PCI cover and lift out the cover.
Wireless LAN card
Black coax cable
White coax cable
2. Using a pull out jig, disconnect the black and white
coax from the wireless LAN card.
3. Peel off the glass tape securing the coax cables.
4. Spread the Mini-PCI connector clips and pull the
Wireless LAN card out of the connector about
45 degree angle.
BLUETOOTH CARD REMOVAL
Coaxial
cable
Glass
tape
Bluetooth cover
1. Lift out the bluetooth cover.
Bluetooth card
2. Peel off the glass tape securing the coaxial cable.
3. Disconnect the coaxial cable on the bluetooth card.
4. Disconnect the bluetooth card from the system
board.
TOSHIBA
Tough Enough for Todays World.
FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
HDD REMOVAL
HDD cover
HDD REMOVAL
M2x4 silver screw
1. Turn the computer upside down.
2. Remove two M2x4 silver screws securing HDD cover.
3. Remove the HDD cover.
Plastic Tab
HDD pack
4. Unfold the plastic tab and pull to remove the HDD
from the bay.
KEYBOARD REMOVAL
HDD
bracket
HDD
HDD connector
Latch
M3x4 flat head brass screws
5. Remove four M3x4 brass flat head screws securing
the HDD to the bracket and lift the drive out of the
bracket.
6. Unplug the HDD connector from the drive.
Keyboard holder
1. Turn the computer right side up and open the display
panel.
2. Using the case separator, unlatch the keyboard
holder.
TOSHIBA
Tough Enough for Todays World.
FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
KEYBOARD REMOVAL
Keyboard
cable
PJ445
M2x4 black screws
Keyboard
4. Lift out the keyboard and set it as shown above.
(Place an insulator between the keyboard and the
LCD to avoid scratches on the LCD).
5. Disconnect the keyboard cable from PJ445 on the
system board.
3. Remove two M2x4 black screws securing the
keyboard.
MEMBRANE SWITCH REMOVAL
MEMORY MODULE REMOVAL
Plastic
insulator
Memory
module
Memory clips
1. Lift up the plastic insulator covering the memory slots.
2. Spread the memory clips outward and pull the memory
module out of the connector on a 45 degree angle.
M2x4 silver screws
1. Turn the unit upside down.
2. Remove three M2x4 silver screws securing the
palmrest cover.
TOSHIBA
Tough Enough for Todays World.
FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
MEMBRANE SWITCH REMOVAL
Palmrest
cover
Membrane
switch cable
M2x4 brass flat head screws
3. Turn the computer right side up and open the display panel.
4. Remove three m2x4 brass flat head screws securing
the palmrest cover.
PJ309
5. Carefully lift up the palmrest cover.
6. Disconnect the membrane switch cable from
PJ309 on the system board and lift out the palmrest
cover.
LCD ASSEMBLY REMOVAL
MEMBRANE SWITCH REMOVAL
Membrane
switch
M2x10
silver
flat head
screws
Membrane
switch
bracket
M2x3 silver flat head screws
7. Lift up the insulator covering three screws and remove
three M2x3 silver flat head screws securing the
membrane switch bracket.
8. Remove the bracket and the membrane switch.
M2x6 silver screws
1. Turn the computer upside down and remove the
following screws:
-2 M2x10 silver flat head screws
-2 M2x6 silver screws
TOSHIBA
Tough Enough for Todays World.
FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
LCD ASSEMBLY REMOVAL
LCD
harness
Right
speaker
cable
Left Speaker cable
PJ5
Glass tape
2. Turn the computer right side up and open the display panel.
3. Peel off the glass tape securing the left speaker cable and
the wireless cables.
4. Disconnect the LCD harness from PJ5 and the left and
right speaker cables from PJ303 and 304.
M2x4 brass flat head screws
5. Remove eight M2x4 brass flat head screws securing
the LCD assembly.
6. Carefully lift out the LCD assembly.
MODEM BOARD REMOVAL
AUDIO/INFRA RED BOARD REMOVAL
System
board
System
board
Modem
harness
M2x4 brass
screws
Audio/IR
board
PJ102
M2x4 brass screws
Microphone
1. Disconnect the microphone from PJ102 on the
audio/IR board.
2. Remove two M2x4 brass screws securing the audio/IR
board.
3. Disconnect the audio/IR board from PJ302 on the
system board.
Modem board
1. Disconnect the modem harness from JP1 on the
modem board.
2. Remove two M2x4 brass screws securing the
modem board.
3. Disconnect the modem board from PJ345 on the
system board
TOSHIBA
Tough Enough for Todays World.
FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
RTC BATTERY REMOVAL
WIRELESS SWITCH BOARD REMOVAL
M2x4
brass
screw
RTC
battery
PJ752
RTC cable
Wireless
switch bracket
Plastic insulator
Wireless switch cable
Wireless switch board
1. Remove one M2x4 brass screw securing the
wireless switch board.
2. Lift up the wireless switch board and disconnect the
wireless switch cable from PJ1 on the wireless
switch board.
3. Remove the wireless switch bracket.
1. Disconnect the RTC cable from PJ752 on the system
board.
2. Remove the RTC battery from the plastic insulator.
TOP PCB REMOVAL
Glass tape
Modem/LAN
hartness
PJ306
Top system
board
RJ11 cable
PJ305 PJ307
PJ301
M2x4 brass screws
System board
1. Peel off the glass tape securing the modem/LAN harness.
2. Disconnect the modem/LANharness from PJ305 and
PJ307 on the top PCB.
3. Remove two M2x4 brass screws securing the top PCB.
4. Disconnect the top PCB from PJ300 on the bottom board.
Wireless switch cable
5. Disconnect the modem harness from PJ306
and the wireless switch cable from PJ301 on the
top system board.
NOTE: When installing the top PCB, ensure that the
modem/LAN harness is properly routed.
TOSHIBA
Tough Enough for Todays World.
FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
SPEAKERS REMOVAL
BOTTOM PCB REMOVAL
PJ8
PJ9
Modem/LAN
harness
Glass
tape
Bottom
PCB
Left speaker
M2x4 brass screws
1. Disconnect the modem/LAN harness from PJ8 and
PJ9 on the bottom PCB.
2. Remove six M2x4 brass screws securing the bottom PCB.
3. Lift out the bottom PCB.
M2x3 flat head silver screws
Right speaker
1. Remove two M2x3 silver screws securing both the
left and right speakers.
2. Peel off the glass tape securing the right speaker
cable and remove both speakers.
TOSHIBA
Tough Enough for Todays World.
FIELD REPLACEABLE UNIT DOCUMENTATION
TM
Portege
4000 Series
12 DISPLAY MASK REMOVAL
FL INVERTER AND 12 LCD REMOVAL
LCD module
Latch
Display
mask
M2x4
brass
screws
M2x4
brass
screws
LCD
Glass tape
LCD/
FL cable
Mask seals
1. Remove two rubber seals at the bottom corners of the
display assembly using a pair of fine-tipped tweezers.
2. Remove two M2x6 flat head brass screws securing
the display mask.
3. There are 19 latches securing the display mask.
Carefully insert your fingers between the mask and the
LCD panel and pry open the latches starting from the
six top latches, to the five latches on each right
and left sides, ending with the bottom seven latches.
FL inverter board
M2x3 silver screw
FL cable
1. Remove two glass tapes securing the LCD/FL cable
and the FL cable.
2. Remove one M2x4 brass screw securing the
FL inverter board.
2. Carefully lift up the FL inverter board and
disconnect the LCD/FL cable from CN1 and the
FL cable from CN2.
3. Remove four M2X4 brass screws securing the
LCD module assembly.
5. Carefully lift out the bottom part of the LCD module
assembly and rotate out the top of the LCD module
enough to access the display cable
6. Peel off the tape securing the LCD/FL cable and
disconnect the cable.
7. Remove four M2x2.8 silver screws securing the
right and left LCD brackets.
TOSHIBA
Tough Enough for Todays World.
