Replacing The Spo2 Circuit Boards - Welch Allyn Propaq Encore Service Manual

Replacing the SpO2 Circuit Boards

Replacing the SpO
The following instructions describe how to replace the two SpO
module and in the expansion module without a CO
boards in an expansion module with a CO
Circuit Boards on page 111.
Caution
When replacing the SpO 2 circuit boards, remove both circuit boards with the patient
connector side panel still connected. Attempting to disconnect the patient
connector side panel from the SpO 2 circuit board before removing both circuit
boards with the side panel can damage the flex-cable between the side panel and
the SpO 2 circuit board.
1. Open the SpO module or expansion module according to the procedures on page 108 and on
2
page 101, respectively.
Caution
In the next step, the connector securing clips are fragile and will break if not
handled carefully.
2. Disconnect the cable(s) from the SpO
unplugging the connectors.
3. Disconnect the speaker cable from the SCP board.
4. Remove the speaker side panel from the chassis.
5. Remove the one or two screws securing the SCP board and SpO
6. Lift out the two circuit boards and patient connector side panel as a unit. (The side panel easily
slides out.)
7. Using equal pressure on both sides of the connector, disconnect the patient connector side
panel connector from the SpO
8. Disconnect the two circuit boards by gently pulling them apart.
When installing the SpO
• Connect the patient connector side panel connector to the SpO
• Set the two circuit boards and side panels in place, making sure that the boards are seated on
the support tabs.
• Torque screws to 4.75in-lbs to 5.25in-lbs (.54N-m to .59N-m).
• Reconnect the printer and expansion cables to the SCP board.
110
Circuit Boards
2
option are described in Replacing the MSP/SpO
2
SCP board by carefully releasing the securing clips and
2
circuit board.
2
circuit boards first, plug the two circuit boards together. Then:
2
Section 5-Repair Procedures
circuit boards in the SpO
2
option. Instructions for replacing SpO
2
board to the rear panel.
2
circuit board.
2
Propaq Encore Service Manual
2
2
2