W9 Disassembly; W9 Reassembly - Motorola ASTRO XTL 5000 Basic Service Manual

8-6
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C a u t i o n
4. For dash-mounted radios, plug the interconnect flex from the radio into the control head, slide
the control head into the headbridge, and fasten the control head with the two front panel
screws (torqued to 6-8 in.-lbs).
OR
For remote-mount control heads, replace the front panel into the remote control head back
housing, make sure the gasket is in place, then torque the screws to 6-8 in.-lbs. Replace any
plugs and cables on the rear of the control head.

8.2.2.5 W9 Disassembly

NOTE: Bracketed numbers are identical to item numbers in
Head Exploded View" on page
NOTE: Before disassembling the W9 control head, note the location of the labeled bottom.
1. Using a Torx T15 driver, remove the two 30mm machine screws [29] from the back housing
[31] of the control head.
2. Fold the front housing [41] over so that the front housing is face down and the back housing is
on your working surface with the flex cable [18] attached.
3. Using a Torx T10 driver, remove the five 8mm tapping screws [17] from the Display Board Kit
[37], the two 10mm captive screws [12] with the leaf assembly spring [11], and the two 16mm
tapping screws [38] from the control PC board.
4. Remove the Command Board Kit [36] from the back housing and the Display Board Kit [37]
from the front housing.
5. Remove the elastomer keypad [7], ON/OFF switch gasket [34], the "D" Connector Gasket
[33], the solder side shield [16], and the component side shield [19] from the PC boards.
NOTE: Be careful to not bend the tabs on the shields when removing them and align them

8.2.2.6 W9 Reassembly

NOTE: Bracketed numbers are identical to item numbers in
Head Exploded View" on page
1. 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.
2. Reassemble the Command Board Kit [36] into the back housing [31], making sure that the
power switch is in the proper location and replace the two tapping screws [38], torquing them
to 6-8 in.-lbs.
3. Reassemble the Display Board Kit [37] into the front housing [41], making sure that the
elastomer keypad [7] is in the proper location.
June 13, 2003
Disassembly/Reassembly Procedures: Replacement Procedures
Take care to avoid misalignment of connector pins. On dash
mount radios, remove the radio top cover to allow visual
inspection during connector alignment.
11-5.
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.
11-5.
Figure 11-4. "W9 Pushbutton Control
Figure 11-4. "W9 Pushbutton Control
6881096C73-O