Power Supply Removal/Installation; Figure 6-6: Power Supply Leads Connections - Nellcor NPB-190 Service Manual

6.8

POWER SUPPLY REMOVAL/INSTALLATION

6. Position the ground line from the PEM so that it does not come into contact
with components on the Power Supply PCB.
7. Complete procedure in paragraph 6.5.
Removal
1. Complete the procedure described in paragraphs 6.2 and 6.4.
2. Disconnect the leads from the battery.
3. Follow the procedure in paragraph 6.7, steps 2 and 3.
4. Use a 10mm wrench to disconnect the Power Supply ground lead from the
equipotential lug (Figure 6-6).
5. Remove the seven screws shown in Figure 6-7.
6. Lift the Power Supply out of the bottom case.

Figure 6-6: Power Supply Leads Connections

W1 W2 Equipotential
to Brown to
Equipotential "L" on
Lug PEM
G
N L
W4 W5
Red Black
Section 6: Disassembly Guide
W3
Lug Blue to
"N" on
PEM
6-7