CAIRE eQuinox PAOS 4000 Provider Technical Manual page 36

9. Next, Disconnect the Power Manager Board/Control Board/Battery
Bridge Board Wire Harness from the Control Board by gently
pulling the connector from the Control Board.
10. Next, remove the two Phillips Head Screws that attach the
Control Board to the Top Cover.
11. Next, gently lift the Control Board upward and disconnect the
Membrane Panel Connector.
Personal Ambulatory Oxygen System Provider Technical Manual
Figure 65
Figure 66
12. The Control Panel can now be removed by gently lifting upward
on the Control Board. To replace the Control Board, repeat steps
7-11 in reverse order.
13. In order to remove/replace the Membrane Panel, the Control
Board must be removed. Once the Control Board has been
removed, rotated the Front Cover over so as to have access to the
Membrane Panel.
14. Insert a small Flat Head screwdriver under the Membrane Panel,
prying upward, and work around the outer edge of the panel
to break away the adhesive that secures the panel to the Front
Cover.
15. Pull the Membrane Panel upward, making sure that the
connector is fed through the opening on the Top Cover.
16. Once the Membrane Panel is removed, use Isopropyl Alcohol
to clean any residual adhesive remaining on the Front Panel and
allow to dry completely.
17. Obtain a new Membrane Panel and peel off the protective
cover off of the backside of the Membrane Panel, exposing the
adhesive.
18. Once the protective has been removed, feed the connector
through the slot in the Top Cover and align the Membrane Panel
with the recess on the Top Cover and press down firmly.
FIGURE XX
Figure 67
Figure 68
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