Reassembly - GE Corometrics 126 Service Manual

7-12
Calibration: Display Check
16. If MSpO is installed in the monitor, disconnect the front panel MSpO
2
cable from the Oximeter Carrier Board at J6 and remove the cable bushing from
the enclosure. Pull the cable's ferrite bead out from the retaining clip.
17. If MECG is installed in the monitor, disconnect the front panel MECG harness
cable from the MECG Board at J7 and remove the cable bushing from the
enclosure. Pull the cable's ferrite bead out from the retaining clip.
18. Squeeze the top and bottom tabs on the main power switch and push the switch
and attached harness through the front bezel.
19. Remove the four screws which fasten the front bezel to the monitor—two on
each side.
20. Gently tilt the front bezel forward and lay the whole assembly face down on the
table.
21. Remove the two screws which fasten the bottom of the strip chart recorder to
the front bezel.
22. Remove the four front recorder mounting screws which secure the frame at the
front bezel.
23. Slide the recorder slightly away from the front bezel and then lift the recorder
out.
24. If BP is installed in the monitor, disconnect the blood pressure tubes from the
nipples located at the divider to the recorder cavity. Use masking tape to label
the tubes "top" and "bottom". Free the blood pressure tubes from the notch at
the top of the DSP Board and drape them over the rear panel of the monitor.
25. Remove the two screws securing the DSP Board to the chassis.
26. Remove the DSP Board from the Main Board.

Reassembly

1. Remove the new DSP Board from its anti-static packaging.
2. Mount the new DSP Board onto the Main Board headers then secure the board
to the chassis using the two screws.
3. If BP is installed in the monitor, route the blood pressure tubes through the
notch at the top of the DSP Board. Attach the tubes to the nipples in the chassis
divider paying attention to the top/bottom labels.
4. Remove new front bezel assembly from its packaging.
5. Carefully position the recorder into the front bezel housing.
6. Install the four front recorder mounting screws which secure the frame to the
bezel.
7. Install the two screws which secure the strip chart recorder to the bottom of the
front bezel.
8. Push the main power harness assembly through the front bezel power switch
cutout, from the front to the back, until the switch snaps in place.
9. Carefully reposition the new front bezel. Secure all four screws—two on each
side.
120 Series Maternal/Fetal Monitor
2015590-001
harness
2
Revision B