Tecra 750 Series Disassembly Overview, (cont.)
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To remove the fan, 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, top cover with display assembly, and system board.
3.Turn the system board upside down and remove the tape securing the fan cable.
4.Disconnect the fan cable from PJ550 on the system board.
5.Turn the system board right side up and remove two M2.5x4 screws.
6.Lift out the fan.
To remove the middle frame, 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, top cover with display assembly, and system board.
3.Remove two M2.5x4 screws and one M2.5x8 screw securing the Selectable Bay top cover to the middle frame.
4.Two positioning pins fit into holes on the Selectable Bay top cover. Pry the cover free of the pins then lift off the cover.
5.Disconnect two secondary battery cables from the I/O board.
6.Remove six M2.5x8 screws and one M2.5x4 screw securing the middle frame to the bottom cover.
7.Pull out the Selectable Bay release lever and set the Selectable Bay lock to the lock position.
CAUTION: If you remove the middle frame while the Selectable Bay lock is unlocked, the I/O board will be damaged.
NOTE: Make sure the screw in the memory slot has been removed.
8.Lift off the PC card slot cover and lift out the middle frame.
9.Remove one M2x3 screw securing the bracket over the probe pin harness.
10.Remove two M2x5 screws securing the probe pin harness to the middle frame.
11.Lift out the probe pin harness and note how the cables are threaded.
Toshiba TRR | Page 22 | 4/00, Tecra |