Troubleshooting Charts - Motorola ASTRO W3 Service Manual

5-12
4. Install the circuit board [5] into the housing assembly [7] as follows:
A. Hold the housing assembly so that its key openings face downward and its top faces away
from you.
B. Pivot the circuit board's display down under the retention features in the housing and
rotate the board downward, ensuring that the board is positioned between the snap
features. Ensure that the microphone assembly's [8] wire passes through the opening in
the circuit board.
C. Press downward firmly on the board until the seven snap features lock the board into
place.
5. Install the two snap retainers [4] between the circuit board and the side wall of the housing
assembly [7], one on each side.
6. Install the main seal [3] onto the rear cover assembly [2], placing the seal under the retainer
features around the perimeter of the cover.
7. Install the rear cover assembly [2] onto the housing assembly [7].
Starting at the top of the cover, pivot the cover toward the housing and squeeze the two
halves together until the snap features at the lower end of the rear cover engage the
housing's features and snap closed.
8. Insert the cable assembly's [15] telco connector into the opening in the bottom of the housing,
and ensure that it is correctly oriented.
9. Press the telco connector in place until it snaps in (like a phone plug).
10. Place the seal-support wedge [14] into the housing's opening, orienting it so that its long
portion is under the telco connector lever, and then push until it is properly seated.
11. Push the rubber seal (part of the cable assembly [15]) into the housing's opening and ensure
that it is properly seated.
NOTE: This seal must be inserted completely into the housing to ensure the rain seal.
12. Push the strain-relief boot (part of the cable assembly [15]) into the housing and ensure that it
is properly seated.
13. Insert the kit label [1] into the recess on the rear cover, and ensure that it is securely attached.
5.8

Troubleshooting Charts

This section contains detailed troubleshooting flowcharts. These charts should be used as a guide in
determining the problem areas. They are not a substitute for knowledge of circuit operation and
astute troubleshooting techniques. It is advisable to refer to the related detailed circuit descriptions in
the theory section prior to troubleshooting a radio.
September 26, 2003
Troubleshooting: Troubleshooting Charts
6881096C77-O