GE Corometrics 250cx Series Service Manual

252 pages

To Next Page

To Previous Page

Revision C 250cx Series Maternal/Fetal Monitor 4-53

2036947-001

Maintenance: Recorder Photosensor Calibration

Adjusting the Paper-Loading Sensor

1. Load paper in the recorder. Ensure that there are

black squares showing to

indicate a paper-low condition. You must load at least nine sheets of paper.

2. Using a digital voltmeter, connect the positive lead to J9 (pin 6) on the Recorder

Board; connect the negative lead to J9 (pin 2).

3. Adjust R41 for a reading of +190 mVdc ± 5 mVdc on the digital voltmeter.

4. Although a factory-only fixture is required for this step, you may wish to try it

by estimating the required distance. Load paper backwards with the white

surface 0.380 in away from the paper tray. This creates a paper-loading error

condition. Verify that the voltage at J9 (pin 6) on the Recorder Board is at least

2.70 Vdc.

Other manuals for GE Corometrics 250cx Series

Need help?

Do you have a question about the GE Corometrics 250cx Series and is the answer not in the manual?

General