Replacing The Power Supply - Nellcor OXIMAX N-600X Series Service Manual

Replacing the Power Supply

To replace the power supply:
1. Reconnect the three leads to the PEM and the leads to the equipotential terminal
and the battery, shown in Removing the Power Entry Module, Figure 128 on
page 172.
2. Place the power supply in the bottom case.
Caution
When installing the power supply, tighten the seven screws using a 4-in lbs maximum.
Overtightening could strip out the screw holes in the bottom case, rendering it unusable.
3. Install the seven screws in the power supply and tighten.
4. Connect the fan harness to J1 on the power supply.
5. Install the PEM in the bottom case with the fuse drawer facing down. A tab in the
bottom case holds the PEM in place.
6. Insert the bottom wing of the PEM between the tab and the internal edge of the
sidewall of the bottom case.
7. Push the PEM down and towards the outside of the oximeter until it clicks.
8. Follow the steps outlined in Reassembling the Oximeter, page 169.
Service Manual
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Table 38. Power Supply Lead Connections
Wire Color / Label
Green & Yellow
Brown/Labeled "L"
Blue/Labeled "N"
Red/Labeled "+"
Black/Labeled "-"
or call 1-800-674-3655
Connect To
Equipotential Lug
"L" on the Power Entry Module
"N" on the Power Entry Module
Positive Battery Terminal
Negative Battery Terminal
10030881 Rev. B 12-2008
Power Supply Replacement
175