Maintenance 3-13

3.7.8 Option Board Installation

1. With the keypa d retainer removed the keypad backer board can be removed without the use of
tools.
2. Remove the jumper flex from the connector on the keypad board. Notice the orientation of the flex
to the connector. Arrows on the jumper flex point to the correct way of inserting the flex into the
connector.
3. Discard the keypad backer board.
4. The “breakaway” tab at the top of all option boards contains an extra row of keys and is used to
accommodate other radio models.
5. Break-off and discard the optio n bo ard tab, taking care not to damage th e op tio n boar d. Trim any
tab fragments that may remain on the option board.
Figure 3-11: Changing Keypad/PassPort Board /Option Boards
6. Reassemble the option board to the front cover assembly.
7. Insert the display flex circuit into the connector on the option board.
8. Insert the jumper flex circuit into the connector on the option board. Notice the orientation of the
flex circuit. Arrows on the jumper flex point to the correct way of inserting the flex into the
connector.
9. Replace the retainer by placing the two top hooks into the slots below the speaker in the front
cover; then, pivot the r eta iner into the front cover. Ensure that all four t ab arms snap correctly into
the front cover.
10. With the keypad option board, display, and retainer correctly in place, the front cover assembly
can now be reassembled per paragraph 3.7.6.
NOTE: The CPS may display a warning dialog box when you attempt to write the codeplug
back to the radio. It is safe to ignore this warning. Press the OK button.
TO KP
Retainer Jumper
Flex
Keypad/
Option
Board
Display
Flex