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bridge (A).
3.
Release the pressure plate (B) of connector PJ1 (C) to disconnect
the keyboard cable from the system PCB.
FIGURE 4-8 Disconnecting the Keyboard Unit
4.
To install a new keyboard unit, follow the above procedures in
reverse.
MODEL:T1200H/HB
Page 4-7
4.5 REMOVING/REPLACING THE MEMORY CARD, RTC BATTERY, AND SPEAKER
CAUTION: The expanded memory contents will remain in the old
expanded memory. If desired, transfer the contents of
the old expanded memory onto a floppy disk before
replacing the memory card.
Before replacing the memory card, disconnect the sub
battery from the power supply PCB.
1.
Confirm that the POWER switch is off.
2.
Remove the keyboard unit as directed in part 4.4.
3.
Remove the single screw (A) from the memory card.
4.
To disconnect the memory card cables (B), press down on the area
where the cable is attached to the card and release the pressure
plates (C); then lift the card out.
5.
Disconnect the two cables (D) (E) from the system PCB (F).
6.
Remove the RTC battery (G) by spreading the plastic latches (H).
7.
Remove the speaker (I) by pushing the plastic latch (J) outward
until the speaker can be pulled out.
FIGURE 4-9 Removing the Memory Card, RTC Battery, and Speaker
8.
To install a new memory card, RTC battery, and speaker, follow the
above procedures in reverse.
MODEL:T1200H/HB
Page 4-8
4.6 REMOVING/REPLACING THE KEYBOARD BRIDGE AND INDICATOR PCB
(PRINTED CIRCUIT BOARD)
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