Keyboard Removal; Ptt Disassembly; Figure 6-8. Keypad Removal - Motorola EP450 Basic Service Manual

Display Model Disassembly and Re-assembly: Disassembling and Re-assembling the Radio — General

6.4.1.4 Keyboard Removal

1. Carefully pry the four keypad retainer locking tabs free from the housing use a scribe.
Note: Use care when removing the keypad retainer to prevent damage to the keyboard flex cable.
2. Lift the keypad retainer up from the bottom and slide the top tabs out.
3. Slide keypad retainer out of chassis carefully to prevent damage to flex cable.
CAUTION: Refer to the CMOS CAUTION paragraph (6.3) before removing the main board. Be sure to
!
use Electrostatic Discharge protection when handling circuit boards.
4. Lift LCD keypad board out of housing
5. Lift keypad out of housing.

6.4.1.5 PTT Disassembly

1. If required, the PTT
HKLN4215A
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(Figure 6-9
a. Insert the tip of a small screwdriver underneath the PTT and unsnap the top tab.
b. Pry the PTT away from the radio housing.
c. Inspect the two hooks. If bent or broken, the PTT must be replaced.
d. Remove the PTT seal.
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(Figure 6-8).

Figure 6-8. Keypad Removal

can be disassembly using a small screwdriver, as follows:
Keypad Retainer
Flex Cable
Keypad Board
Keypad
December 3, 2003
6-7