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100 Repair procedures Welch Allyn Propaq CS Vital Signs Monitor
• set the two boards and side panels in place, making sure that the boards are seated
on the support tabs
• torque screws to 4.75 to 5.25 in-lb (0.54 to 0.59 N-m)
• reconnect the Mainstream CO
2
patient connector cable
Replacing the Sidestream CO
2
assemblies
The following instructions describe how to replace the Sidestream CO
2
option assemblies
in the Expansion Module. These include the Sidestream Processor (SSP) Board, the
Sidestream CO
2
“Stick” Board, and the Extender Board.
1. Loosen the Expansion Module front chassis (“Expansion Module” on page 90).
2. Disconnect J1 and J3 from the SSP Board to completely separate the Front Chassis.
Replacing the Extender Board
1. Remove the Extender Board from the MSP Board through the left card slot in the
Expansion Module.
When reinstalling the Extender Board, observe P6 connector mating while installing
through the left card slot to ensure proper connection with the MSP Board.