Revision D 250 Series Maternal/Fetal Monitor 6-19
2020551-001
Parts List, Drawings, and Replacement: Assembly/Disassembly of FRUs
10. Disconnect 20-conductor Recorder ribbon cable from Recorder board connector
J2.
11. Disconnect power supply cable from J1 connector on Recorder board.
12. Disconnect Recorder EMC ground wire Fast-on connector from chassis tab.
13. Remove four screws fastening Recorder assembly mounting bracket to chassis.
14. Remove Recorder assembly and mounting bracket. Do not snag bracket on
hoses or cables while removing.
15. Flip over the Recorder assembly. Remove three screws fastening Recorder
assembly to mounting bracket.
Installing new Recorder Assembly:
1. Fasten new Recorder assembly to mounting bracket with three screws.
2. Fasten Recorder assembly and mounting bracket to chassis with four screws.
Do not fully tighten four screws, as you will need to adjust later in the
procedure.
3. Connect Recorder EMC ground wire Fast-on connector to chassis tab.
4. Connect power supply cable to J1 connector on Recorder board.
5. Connect 20-conductor Recorder ribbon cable to Recorder board connector J2.
6. Open Recorder door, as it will interfere with front bezel attachment.
7. Tilt the front bezel back onto chassis. Ensure that two front bezel fiducial pins
are aligned with Recorder slots. Ensure that three tabs on the bottom of front
bezel are aligned with chassis slots. (See photograph below.)
8. Refasten screws to each side of chassis.
9. Close Recorder door.
10. Align the Recorder so that it is equidistant from both sides of the printer
opening in the front bezel and the Recorder door is flush with the outside of the
front bezel.
11. Check that door will open and close without interference.
12. Connect 10-conductor DSP-to-Keypad ribbon cable to DSP board connector J5.
13. Connect 20-conductor DSP-to-LCD Decoder ribbon cable to DSP board
connector J2.
14. Connect 8-conductor Inverter cable to DSP board connector J1.
15. Place DSP board onto Main board. Use two screws to fasten DSP board to
chassis.
16. Slide-on top cover. Re-insert screws.
2025177-018 Recorder Board
1. Remove top cover. Keep screws aside.
2. Remove two screws fastening DSP board to chassis.
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