Option Board Installation; Figure 2-10: Fastening The Chassis; Figure 2-11: Changing Option Board - Motorola PR860 Basic Service Manual

Maintenance
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.

2.7.6 Option Board Installation

1. With the keypad retainer removed the keypad dummy board can be removed without the use of
tools.
2. Discard the keypad dummy board.
3. The "breakaway" tab at the top of all option boards contains an extra row of keys and is used to
accommodate other radio models.
4. 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.
Retainer
Radio
Chassis

Figure 2-10: Fastening the Chassis

Figure 2-11: Changing Option Board

Keypad/Option Board
2-11