Remote Mount Versions; Model I - Motorola MCS 2000 Service Instructions Manual

Disassembly & Reassembly and Replacement Procedures: Disassembly of the Control Head

Remote Mount Versions

1. Disconnect the Remote Mount Cable by squeezing the top and bottom of the connector
together, disengaging the bottom snap then the top, and pulling straight out.
2. Remove the back housing by inserting a small flat-blade screwdriver or like instrument into
the recess on the short side of the control head exterior, taking care not to mar the surface.
Rotate the screwdriver so that the tab deflects out and disengages from the control head
housing.
3. Repeat the operation in Step 2 for the opposite side.

Model I

1. Remove the internal spacer by inserting a small flat-blade screwdriver or like instrument into
one of the eight recesses around the perimeter of the spacer. Rotate the screwdriver so that
the spacer deflects in and the tab disengages from the control head housing.
2. Repeat Step 1 for the remaining seven recesses.
3. Pull the control head board straight out from the control head housing, removing the control
head board, the speaker, and the keypad together.
4. Remove the keypad from the PCB by pulling up on the keypad. Care is required in removing
the keypad from around the volume potentiometer and the microphone connector to keep
from overstressing the leads. Care should be taken not to touch or get other contaminants on
the conductive pads on the underside of the keypad.
5. To remove the LCD gasket, first remove the elastomeric connector, the LCD frame, the color
sheet and the LCD itself from the housing.
6. Disconnect the speaker lead from the connector on the control head board.
Models II & III
1. Remove the back housing by inserting a small flat-blade screwdriver or like instrument into
the recess on the short side of the control head exterior, taking care not to mar the surface.
Rotate the screwdriver so that the tab deflects out and disengages from the control head
housing.
2. Repeat the operation in Step 1 for the opposite side.
3. Pull the back housing straight off.
4. On Model II, also remove the rotary knob on the right side of the unit by pulling away from the
control head.
5. Remove the control head board by prying back on the four visible light pipe snaps. Carefully
remove the board from the housing. Gently pull the board straight up so not to damage the
volume potentiometer and the microphone connector leads.
6. The light pipe can be removed by prying back on its plastic snaps from the recesses in the
control head housing. This step is only required to gain access to the keypad.
NOTE: Keypad with replaceable Push Buttons only
Care should be taken when removing the light pipe from control heads equipped with
replaceable pushbuttons as the buttons are loose in the housing under the keypad.
7. With the light pipe removed, the keypad can be pulled from the housing. Care should be
taken not to touch or get other contaminants on the conductive pads on the underside of the
keypad.
68P81083C20-D
5-11
December 6, 2004