Personal Ambulatory Oxygen System
Provider Technical Manual
20771733 D 33
X. Removing/Replacing the Control Board, Power Manager Board, Voice System
Board, Battery Bridge Board, Membrane Panel and Wire Harness Assemblies
1. Once the Top Cover Foam Section has been removed, the Control Board, Power Manager Board, and Wire Harness Assemblies are now ac-
cessible.
Service
Port Wire
Harness #1
Service
Port Wire
Harness #2
Speaker Wire
Harness
Main Power
Wire Harness
Power
Manager
Board
Control
Board
9-Volt
Battery
Wire
Harness
Power
Manager
to ATF Wire
Harness
Power Manager
Board/Control
Board/Battery
Bridge Board
Wire Harness
Power
Manager
Board to
Battery
Bridge
Board
Wire
Harness
#2
Power
Manager
Board to
Battery Bridge
Board Wire
Harness #1
Figure 57