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TECRA 750 SERIES


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Tecra 750 Series Disassembly Overview


  The information offered in this section is an overview of the Maintenance Manual, Chapter 4, Replacement
  Procedures. If you have any questions or concerns regarding the proper procedure please refer to the Mainte-
  nance Manual through the Toshiba Service and Support Website before you proceed.



                                                                     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, then follow the line on
                                                                     the chart to determine which FRU you must
                                                                     remove next in order to repair the one you think is
                                                                     causing the computer to operate improperly.

                                                                     To remove the battery pack, follow the steps
                                                                     below.
                                                                       CAUTION: When handling battery packs, be
                                                                       careful not to short circuit the terminals. Also
                                                                       do not drop, hit or otherwise apply impact; do
                                                                       not scratch or break the casing.
                                                                         1.   Turn off the power to the computer.
                                                                              Disconnect the AC adapter and all
                                                                              external cables connected to the
                                                                              computer.
                                                                         2.   Turn the computer upside down with the
                                                                              front facing you and push the battery
                                                                              lock up to unlock it. A red dot shows
                                                                              when the lock is in the unlock position.
                                                                         3.   Pull the battery's release lever out and
                                                                              slide it to the left to pop the battery up
                                                                              slightly.
                                                                         4.   Grasp the battery pack and lift it out.

                                                                     To install the battery pack, follow the steps below.
                                                                       WARNING: The battery pack is a lithium ion
                                                                       battery, which can explode if not properly
                                                                       replaced, used, handled, or disposed of.
                                                                       Dispose of the battery as required by local
                                                                       ordinances or regulations. Use only batteries
                                                                       recommended by Toshiba as replacements.
                                                                       NOTE: Check the battery terminals visually. If
                                                                       they are dirty, wipe them clean with a dry
                                                                       cloth.
                                                                         1.   Turn off the power to the computer.
                                                                              Disconnect the AC adapter and all
                                                                              external cables connected to the
                                                                              computer.
                                                                         2.   Make sure the battery release lever is
                                                                              pulled out, then carefully insert the new
                                                                              or recharged battery pack.
                                                                         3.   Place your fingers just above two pins
                                                                              on the battery pack that fit into the
                                                                              locking mechanisms in the battery
                                                                              socket. Push the battery pack down
                                                                              carefully until it locks into place.
                                                                         4.   Push the battery lock down to secure it.
                                                                              The red dot will be covered.

Toshiba TRR                                         Page 12                                                 4/00, Tecra
Tecra 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
                                                                   card out partially.
                                                               6. Grasp the PC card and remove it.
                                                               7. Close or replace the PC card slot
                                                                   cover.



                                                           To install a PC card, follow the steps below.
                                                                1. Open or remove the PC card slot cover.
                                                                2. Insert the PC card and press gently to
                                                                     ensure a firm connection.
                                                                3. Close the slot's cover or replace the
                                                                     cover with an appropriate one.
                                                                4. Install the battery pack.




                                                           To remove the Selectable Bay module, 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. Turn the computer upside down and
                                                                    slide the Selectable Bay lock so that a
                                                                    red mark appears. If cables are
                                                                    attached to the computer, be careful not
                                                                    to put pressure on the cables.
                                                                4. Lay the computer back down and pull
                                                                    out the release lever.
                                                                5. Push the release lever in firmly to pop
                                                                    the Selectable Bay module partially out
                                                                    of the bay.
                                                                6. Grasp the module and pull it out.

                                                             CAUTION: The Selectable Bay modules
                                                             can become hot with use. Be careful when
                                                             removing the module.




                                                           Install the Selectable Bay modules as described
                                                           below.
                                                                1. Verify the Selectable Bay lock is
                                                                     unlocked.
                                                                2. Insert the module in the computer and
                                                                     press until it locks into place.
                                                                3. Fold the release lever into the closed
                                                                     position.
                                                                4. Slide the Selectable Bay lock so that
                                                                     the red mark is covered.
                                                                5. Install the battery pack.




Toshiba TRR                                      Page 13                                        4/00, Tecra
Tecra 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 the upper plastic
                                                                   frame and lower plastic frame. Turn it
                                                                   back over and lift off the cover.
                                                               3. Lift off the upper shield cover, unseat
                                                                   the flexible cable connector from the
                                                                   lower plastic frame, then lift out the
                                                                   FDD.
                                                               4. Pull the flexible cable out of the FDD
                                                                   connector.
                                                               5. Remove four M2.5x2.8 black screws

                             



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