Toshiba Tecra 750dvd Maintenance Manual

4/00, Tecra Toshiba TRRPage 12Tecra 750 Series Disassembly Overview
This section explains how to remove Field
Replaceable Units (FRUs). It may not be neces-
sary to remove all the FRUs in order to replace
one.
The chart is a guide to which FRUs need to be
removed in order to remove others.  The section
numbers on the chart refer to the sections in the
Maintenance Manual, Chapter 4.
Always start by removing the battery pack, next,
optional items such as the optional PC card and
optional memory module,...

Toshiba TRR4/00, Tecra
Page 13Tecra 750 Series Disassembly Overview, (cont.)
To remove the optional PC card, make sure the
computer is in boot mode, then follow the steps
below.
1.Turn off the power to the computer.
Disconnect the AC adapter and all
external cables connected to the
computer.
2.Remove the battery pack.
3.Open or remove the PC card slot cover.
4.Press in slightly on the eject button for
the upper and/or lower card and the
button will pop out fully.
5.Press the button firmly to pop the PC...

4/00, Tecra Toshiba TRRPage 14Tecra 750 Series Disassembly Overview, (cont.)
To install the Selectable Bay cover, follow the
steps below.
1.To install the cover, first remove the
Selectable Bay module then hold the
cover by the two finger grips and push it
into place until you hear the latches
click.
2.To remove the cover, grasp the two
finger grips and pull the cover out.
To disassemble the FDD, follow the steps below.
1.Remove six M2x6 silver screws.
2.Turn the FDD over and release two
latches securing...

Toshiba TRR4/00, Tecra
Page 15Tecra 750 Series Disassembly Overview, (cont.)
To assemble the FDD, follow the steps below.
1.Seat the FDD in the bracket and
secure the bracket with four M2.5x2.8
black screws in the order numbered
on the case. Tighten screws to a torque
of less than 2.2 kgfcm.
2.Insert the flexible cable into the
connector. Press gently to ensure a
firm connection.
3.Seat the FDD in the lower plastic
frame and set the upper shield cover
in place.
4.Seat the flexible cable connector into...

4/00, Tecra Toshiba TRRPage 16Tecra 750 Series Disassembly Overview, (cont.)
To disassemble the HDD Pack, follow the steps
below.
1.After removing the HDD pack, lift the left
end of the cover up.
2.Slide the cover all the way to the right.
3.Lift the cover up and remove it.
4.Remove four M2.5x6 silver screws
from HDD pack.
5.Remove the HDD tray and connector
cover.
6.Remove four M3x4 flat-head screws.
7.Remove the flexible cable.
CAUTION: Do not try to disconnect by
pulling on the flexible cable....

Toshiba TRR4/00, Tecra
Page 17Tecra 750 Series Disassembly Overview, (cont.)
To assemble the HDD pack, follow the steps
below.
1.Connect the flexible cable connector
to the HDD.
2.Seat the HDD into the metal cover and
secure four M3x4 flat-head screws.
3.Connect the connector cover to the
flexible cable connector. When
seating the connector cover, match the
positioning pins to the holes on the
flexible cable and metal cover.
CAUTION: Don’t hold the HDD by its flat sur-
faces. It may damage the HDD....

4/00, Tecra Toshiba TRRPage 18Tecra 750 Series Disassembly Overview, (cont.)
To install a memory module(s), make sure the
computer is in boot mode and follow the steps
below.
CAUTION: Do not try to install a memory
module(s) with the computer turned on. You
can damage the computer and the
module(s).
1.Position the connector on the bottom of
the module over the corresponding
connector on the computer. Place your
fingers above the connector and press
firmly but gently to ensure a solid
connection. The...

Toshiba TRR4/00, Tecra
Page 19Tecra 750 Series Disassembly Overview, (cont.)
To install a modem board, follow the steps
below.
1.Place the modem pack and secure the
connector on the modem board to
PJ660 on the system board.
NOTE: Be sure a plastic insulator tab lies on
top of the green backup battery, when you
seat the modem board.
2.Make sure holes in the modem casing
are aligned with screw holes in the
computer and secure the modem board
with four M2.5x6 screws.
3.Lay the palmrest in place and press...

4/00, Tecra Toshiba TRRPage 20Tecra 750 Series Disassembly Overview, (cont.)
To remove the top cover with display assembly,
follow the steps below.
1.Turn off the power to the computer.
Disconnect the AC adapter and all
external cables connected to the
computer.
2.Remove the battery pack, HDD pack,
optional memory module, modem
board, backup and RTC batteries,
keyboard, and membrane switch.
3.Remove four M2.5x10 silver screws
from the bottom of the computer. If you
are going to remove the middle frame,...

Toshiba TRR4/00, Tecra
Page 21Tecra 750 Series Disassembly Overview, (cont.)
 To remove the speakers, follow the steps below.
1.Turn off the power to the computer.
Disconnect the AC adapter and all
external cables connected to the
computer.
2.Remove the battery pack, HDD pack,
optional memory module, modem
board, backup and RTC batteries,
keyboard, membrane switch, and top
cover with display assembly.
3.Remove four M2x4 silver screws
securing the speaker holders.
4.Lift out the speakers with cables and...