Service manual

60 Repair Procedures Welch Allyn Propaq Encore Vital Signs Monitor
1. Remove the battery pack (“Replacing the Battery Pack” on page 52).
2. Open the monitor (“Opening the Monitor” on page 55).
3. Remove the five screws fastening the Analog board to the front chassis.
Note that of the five screws, the two longer screws pass through the metal shield to
secure the board.
4. Gently lift the Analog board up and out of the front chassis.
Note
You do not need to lift the plastic insulator nor remove the metal shield to remove
the Analog board. However, you must lift the insulator to calibrate the board.
Caution The Analog and Digital boards are connected together on the right side
by connectors P4 and J4. It may be necessary to use two flat blade screwdrivers
to gently pry the boards apart.
Place the screwdriver blades as close to the edge of the board as possible so you
don’t contact or disturb components on the board. Components are located as
close as 1/8" to the edge of the board. Use extreme caution. Try not to flex the
board when prying.