Option Board Installation - Motorola GP140 Basic Service Manual

3-12
3. Push down the latches on the connectors to hold the ßex circuits to the main board.
4. Slide the volume potentiometer and frequency switch shafts into their respective holes in the
front cover.
5. Push the chassis assembly completely into the top of the front cover until it settles in place.
6. Be sure the O-ring is properly seated.
7. Snap the bottom of the chassis into the front cover.
8. Reassemble the knobs, dust cover, antenna, and battery.
8.0

Option Board Installation

1. With the keypad retainer removed, the keypad backer board can be removed without the use
of tools.
2. Remove the jumper ßex from the connector on the keypad board. Notice the orientation of the
ßex to the connector. Arrows on the jumper ßex point to the correct way of inserting the ßex
into the connector.
3. Discard the keypad backer board.
4. The ÒbreakawayÓ 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 option board tab, taking care not to damage the option board. Trim
any tab fragments that may remain on the option board.
Radio Chassis
Figure 3-11 Fastening the Chassis
MAINTENANCE