10-14 120 Series Maternal/Fetal Monitor Revision B
2015590-001
Strip Chart Recorder Servicing: Field Serviceable Assemblies
Paper-Loading Sensor
Follow the instructions for “Removing the Strip Chart Recorder” on page 10-2
before following this procedure:
Removing the Paper-Loading Photosensor
1. Disconnect the paper-loading sensor cable from J8 on the Recorder Board.
2. Turn over the recorder and place face down.
3. Cut and remove the cable tie which holds the sensor cable.
4. Remove the two screws which hold the sensor and housing to the paper tray.
5. Discard the sensor and printed circuit board.
Replacing the Paper-Loading Sensor
Use the following procedure for replacing the paper-loading photosensor:
1. Secure the sensor and printed circuit board to the paper tray and tighten both
screws.
2. Connect the sensor cable to J8 on the Recorder Board.
3. Install a new cable tie to hold the cable in place.
NOTE: Ensure that there is enough slack in the cable so that when the recorder
door is opened the cable does not become taut.
4. Re-install the strip chart recorder. Refer to “Installing the Strip Chart Recorder”
on page 10-2. Do not replace the monitor top cover yet.
5. Adjust the paper-loading sensor as described next in this section.
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