Nellcor NPB-75, Service Manual

Page: 46 / 71

Section 7: Disassembly Guide
7-13
7.8.3 Front Cover
(Refer to Figure 7-4: Replacing CO
2
board and Housing Components)
1. Open the monitor as described in section 7.2 "Opening the
Monitor Case".
2. Remove the CO
2
board as described in section 7.3 "Replacing the
CO2 Board".
3. Remove the keypad and ON-OFF Button. Place them in the new
Front Cover. When replacing the keypad, be sure the icons are
facing the correct direction. (Refer to Figure 1-1: Handheld
Capnograph/Pulse Oximeter.)
4. Place the CO
2
board in the new cover.
7.8.4 SpO
2
Connector Latch, Rear Cover and SpO
2
Insulation Plate
(Refer to Figure 7-5: Replacing SpO
2
board, Figure 7-12: Replacing LCD and LED
display and Figure 7-13: Replacing SpO
2
Connector Latch)
1. The External SpO
2
Connector Latch can be removed without
opening the monitor casing. Carefully pull the latch out of its
hinges by squeezing the hinge and pulling the SpO
2
Connector
Latch to the side. Replace with a new SpO
2
Connector Latch.
2. To replace the Rear Cover, open the monitor as described in
section 7.2 "Opening the Monitor Case".
3. Remove the SpO
2
board and cables as described in section 7.4
"
Replacing the SpO2 board
".
4. Remove the SpO
2
Insulation Plate and replace with a new plate
(if needed). Be sure to place the plate over the three screw
mounts.
5. Place the SpO
2
board and cables in the new back cover using a
new Internal SpO
2
Connector Lock.
Figure 7-13: Replacing SpO
2
Connector Latch