Motorola PR400 - Manual (Page 57)

6881096C24-A July, 2004
Full Keypad Model Disassembly and Re-assembly: Disassembling and Re-assembling the Radio — General 6-7
6.4.1.4 Keyboard Removal
1. Carefully pry the four keypad retainer locking tabs free from the housing using a scribe.
2. Lift the keypad retainer up from the bottom and slide the top tabs out.
3. Slide keypad retainer out of housing carefully to prevent damage to flex cable.
4. Lift LCD keypad board out of housing ( Figure 6-8 ).
5. Lift keypad out of housing.
6.4.1.5 PTT Disassembly
1. If required, the PTT ( Figure 6-9 can be disassembly using a small screwdriver, as follows:
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.
Note: Use care when removing the keypad retainer to prevent damage to the keyboard 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.
Figure 6-8. Keypad Removal
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Keypad
Keypad Retainer
Flex Cable
Keypad Board