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4/00, TecraToshiba TRR Page 18
Tecra 780CDM / 780DVD Disassembly Overview, (cont.)
To install the middle frame, follow the steps
below.
1. Make sure the SelectBay release lever
is extended and the SelectBay lock is in
the locked position.
2. Seat the middle frame and make sure a
small tongue on the middle frame’s
SelectBay locking mechanism fits into a
corresponding notch on the external
SelectBay lock.
3. First secure one M2.5x8 screw next to
the SelectBay lock arm, then secure the
other M2.5x8 screw.
4. Place the CONN holder assembly and
secure it with three M2.5x10 silver
screws.
5. Connect two secondary battery cables
to the I/O board.
6. Seat the protective metal plate.
7. Thread the battery cables in the groove
and seat the cable holder.
8. Replace the tape.
9. Secure the SelectBay top cover with
two M2.5x6 screws and one M2.5x8
screw.
10. Install the system board, top cover with
display assembly, membrane switch,
keyboard, backup and RTC batteries,
modem board, optional memory
module, HDD pack, optional PC card,
and battery pack.
To remove the I/O board, follow the steps.
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, top cover with display assembly,
system board, and middle frame.
3. From the bottom of the battery pack slot,
push up on the battery jumper contact
and slide it forward.
4. Press down on the battery jumper as
shown in the figure below and slide the
jumper out to remove it.
5. Remove one M2x6 screw securing the
I/O board to the bottom cover.
6. Lift out the I/O board.
7. Lift out the base shield assembly (with
rubber heat conductor).
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