Toshiba Tecra 780dvd Maintenance Manual

Toshiba TRR4/00, Tecra
Page 7Tecra 780CDM / 780DVD 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,...

4/00, Tecra Toshiba TRRPage 8Tecra 780CDM / 780DVD 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.Now, press the button firmly to pop...

Toshiba TRR4/00, Tecra
Page 9Tecra 780CDM / 780DVD Disassembly Overview, (cont.)
1.To install the cover, first remove the
SelectBay 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. You can use the SelectBay cover when you do
not need to use a SelectBay module.
1.Remove six M2x3 silver screws and
two M2.5x6 silver screws securing the
frame to the DVD-ROM drive.
2.Remove the...

4/00, Tecra Toshiba TRRPage 10Tecra 780CDM / 780DVD Disassembly Overview, (cont.)
1.Seat the FDD in the bracket and
secure the bracket with four M2x3
silver screws.  Tighten screws to a
torque of less than 2.2 kgfcm.
2.Insert the flexible cable into the
connector.  Press gently to assure 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
the lower plastic frame.
5.Set the upper plastic frame in place,
snap the two...

Toshiba TRR4/00, Tecra
Page 11Tecra 780CDM / 780DVD Disassembly Overview, (cont.)
Disassembling the HDD Pack, continued.
3.Remove four M2.5x6 silver screws
from HDD pack.
4.Remove four M3x4 flat-head screws
and the HDD frame.
5.Remove the flexible cable.
CAUTION: Do not try to disconnect by
pulling on the flexible cable.
CAUTION: Do not apply pressure to the top
or bottom of the HDD.í
è
To assemble the HDD pack, follow the steps
below.
1.Connect the flexible cable connector to
the HDD.
2.Seat the HDD...

4/00, Tecra Toshiba TRRPage 12Tecra 780CDM / 780DVD Disassembly Overview, (cont.)
To install the HDD pack, follow the steps below.
1.Align the HDD pack with the marker on
the computer and seat the HDD so that
tabs on the HDD fit into notches on the
computer.
2.Make sure the cover is pushed fully to
the right and push the HDD back to
ensure a firm connection.
3.Slide the cover to the left to lock the
HDD into the slot.
4.Install the battery pack.
To remove the memory module(s), make sure the
computer is...

Toshiba TRR4/00, Tecra
Page 13Tecra 780CDM / 780DVD Disassembly Overview, (cont.)
7.Remove four M2x6 screws securing
the modem board (or the dummy cover)
and lift it out. Opening the palmrest, continued.í
To remove the backup and RTC batteries, 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, optional PC
card, HDD pack, optional memory
module and modem board.
3.Lift the backup battery...

4/00, Tecra Toshiba TRRPage 14Tecra 780CDM / 780DVD Disassembly Overview, (cont.)
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, optional PC
card, HDD pack, optional memory
module, modem board and backup
and RTC batteries.
3.Peel off the tape placed on the folded
end of the keyboard flexible cable.
4.Disconnect the flexible cable from
PJ580 on the system board.
5.Lift up the front edge of the keyboard
and lift...

Toshiba TRR4/00, Tecra
Page 15Tecra 780CDM / 780DVD Disassembly Overview, (cont.)
Removing the top cover with display assembly,
continued.
6.Turn the computer right side up and
open the display panel.
7.Slightly lift up the LCD cable cover and
pull it forward to remove it, then remove
the plastic lens.
8.Remove the tape off the LCD cables.
9.Remove one M2x6 screw securing the
ground cable.
10.Disconnect the LCD cable, FL inverter
cable, speaker cable and microphone
cable.
11.Remove six M2x6 screws, one...

4/00, Tecra Toshiba TRRPage 16Tecra 780CDM / 780DVD Disassembly Overview, (cont.)
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, optional PC
card, HDD pack, optional memory
module, modem board, backup and
RTC batteries, keyboard, membrane
switch and top cover with display
assembly.
3.Lay the display down.  Partially lift the
insulator covering the speaker cables.
4.Remove four M2x4 screws securing
the speaker...