Motorola Timeport 280 Service Manual page 32

Disassembly
G
28
3. Slowly peel the keypad switch dome array from the transceiver board to
remove. Discard the keypad switch dome array just removed.
Do not touch the adhesive on the back of the keypad switch dome array or poor
adhesion and improper operation may result.
4. To replace, remove the protective backing from a new keypad switch array.
5. Align the new keypad switch dome array with the transceiver board. Use the
alignment holes to ensure the switch dome array is correctly positioned on the
transceiver board as shown in Figure 17.
Figure 17. Replacing the keypad switch dome array
6. Apply even pressure across the entire surface of the switch dome array to
ensure proper adhesion.
7. Replace the display module, transceiver board, rear housing, rear escutcheon,
antenna, SIM card, battery, and battery cover as described in the procedures.
8. Verify correct operation.
May 14, 2001
ALIGNMENT HOLES
KEYPAD
SWITCH DOME
ARRAY
TRANSCEIVER
P280
BOARD
010406o
6881038B15