Final Reassembly-W3 Control Head; Table 7-2. W3 Hand-Held Control Head Exploded View Parts List - Motorola ASTRO W3 Service Manual

Troubleshooting: Final Reassembly–W3 Control Head
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C a u t i o n
6. Install the new PC board with the elastomer keypad, the ON/OFF switch gasket, the "D"
Connector Gasket, the "D" Connector O-ring, the solder-side shield, and the component-side
shield in the appropriate locations.
7. Reassemble the Command Board Kit [36] into the back housing [31], making sure that the
power switch is in the proper location and then replace the two tapping screws [38], torquing
them to 6-8 in.-lbs.
8. Reassemble the Display Board Kit [37] into the front housing [41], making sure that the
elastomer keypad [7] is in the proper location.
9. Replace the captive screws [12] and the leaf assembly spring [11] in the front housing, and
then torque them to 6-8 in.-lbs.
NOTE: Before assembling the leaf assembly spring, ensure that the insulator [10] on the
10. Close the assembly by replacing the front housing [41] and the two screws in the back
housing [31]. Torque the screws to 6-8 in.-lbs.
5.7 Final Reassembly–W3 Control Head
When reassembling the control head, make sure the microphone pins are properly inserted through
the elastomeric keypad. Also make sure the elastomeric keypad inserts are secured to the PC board.
NOTE: Numbers shown in parentheses in the following procedure refer to item numbers in
Table 7-2, "W3 Hand-Held Control Head Exploded View Parts List," on page 7-2
1. To reassemble the housing assembly [7]:
A. Insert the transmit indicator [11] into the housing. Ensure that the top surface of the
lightpipe is below the label recess of the housing.
B. Attach the nameplate label [13] to the front of the housing. Ensure that the label is
securely attached.
C. Install the PTT actuator [9] into the housing. Ensure that its lip is seated in the grove in the
housing.
D. Install the PTT lever [10] and the PTT boot [12] into the housing. Ensure that the lever is
seated in its nest and the boot is located properly in the recesses in the housing.
E. Install the keypad [6] into the housing. Ensure that all of the keys are located in the correct
openings in the housing.
2. Install the microphone assembly [8] into the keypad. Ensure that the front surface of the
cartridge is located up against the keypad membrane.
NOTE: The membrane is the rain seal and is very sensitive to puncture by sharp objects.
3. Connect the microphone cable connector to the mating location on the circuit board [5].
6881096C77-O
Be careful to not bend the tabs on the shields when removing
them and align them carefully when replacing the shields.
When working with chips and SOT (small-outline transistor)
parts, use extreme caution when heating. Never reuse a chip
or SOT part; always replace with the correct Motorola part.
board is present. Also ensure that the leaf assembly spring and captive screws are
aligned properly to prevent stripping the front housing screw bosses.
5-11
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September 26, 2003