Welch Allyn PROPAQ CS - Manual (Page 95)

Service Manual Repair procedures 91
Opening Expansion Module rear panel
1. Separate the monitor and Expansion Module ( “Removing the dual battery in
expansion module” on page 66).
2. Remove the four screws securing the rear panel to the Expansion Module Chassis
(see below).
3. Separate the rear panel from the Chassis a few inches (keep any side panels with the
rear). Then disconnect the expansion cable connector and the printer cable connector
from the circuit board (SCP or MSP Board) in the rear panel.
4. Remove the rear panel with the side panels in place.
Note For all Sidestream CO
2
options (226, 227, 228, or 229) remove the front panel
( “Replacing Expansion Module front panel” on page 93) and the extender board
( “Replacing the Extender Board” on page 100) before proceeding with the rear
panel removal.
Caution When disconnecting the expansion cable connector in the next step,
note that it has two plastic securing clips that must be separated from the
connector. These clips are fragile and should be handled carefully.
Note The rear panel is sealed to the Chassis with rubber gaskets around the perimeter
of the rear panel. These gaskets can be reused when reassembling the Expansion
Module. Save these gaskets. Also, spacers might not be secured to the rear panel
and can fall out. As the unit is disassembled set aside the spacers for reuse
during reassembly.