GE Corometrics 126, Service Manual

Page: 339 / 440

Revision B 120 Series Maternal/Fetal Monitor 12-7
2015590-001
Upgrading a 120 Series Monitor: Nellcor MSpO
2
and NBP Option Upgrade Kit
Nellcor MSpO
2
and NBP Option Upgrade Kit
The Nellcor MSpO
2
and NBP Option Upgrade Kit adds Nellcor maternal pulse
oximetry and maternal blood pressure monitoring functionality to Model 126/126F
Monitors. Four Nellcor kits are available. Refer to
“Chapter 14, Replacement Parts”
for further information.
Monitors with a 3-inch x 3.75-inch Display
Installation instructions are provided with the kit; they are repeated here for
information purposes.
Unpacking
Unpack the kit and ensure it contains all items on the packing list. If something is
missing, contact your GE Medical Systems Service Representative immediately.
Installation
NOTE:
Unless otherwise instructed, retain all hardware for re-assembly.
1. Turn off the 120 Series Monitor and disconnect the power cord from the
monitor.
2. Use a flathead screwdriver to pry off the blank plugs inserted in the Maternal
SpO
2
and BP connectors on the front panel of the monitor. Discard these plugs.
3. Remove the nine screws which secure the monitor top cover. Four screws are
located on the bottom of the monitor and five screws are located in the back.
4. Remove the cover by sliding it toward the rear of the monitor.
5. Disconnect the display interconnect cable from the DSP Board at J5. (Refer to
Figure 12-4 .)
6. Disconnect the ribbon cable from the Recorder Board at J2. Leave the other
end connected to the Main Motherboard. (Refer to
Figure 12-5 .)
7. Disconnect the Power Supply cable harness from the Recorder Board at J1.
(Refer to
Figure 12-5 .)
8. Disconnect the ribbon cable from the membrane switch panel. Leave the other
end connected to the DSP Board.
9. Remove the four screws which fasten the front bezel to the monitor—two on
each side.
10. Gently tilt the bezel forward until it lays flat. Be careful not to disconnect the
front end harness cable ferrite beads from their clips. The number of beads
varies depending on which options are installed in your monitor. (Refer to
Figure 12-6 .)
11. Disconnect the Trim Knob cable assembly from the membrane switch panel.
12. Remove the five screws which secure the membrane switch panel bracket to the
front bezel. Discard the screws.
13. Remove the bracket with attached membrane switch panel and discard.