6-14 250cx Series Maternal/Fetal Monitor Revision C
2036947-001
Parts List, Drawings, and Replacement: Assembly/Disassembly of FRUs
10. Reconnect MSpO
2
cable to SpO
2
Carrier board connector J10.
11. Replace card cage cover. Re-insert screws.
12. Reconnect 8-conductor Inverter cable to DSP board connector J1.
13. Reconnect 20-conductor DSP-to-LCD Decoder ribbon cable to DSP board
connector J2.
14. Place DSP board onto Main board. Use two screws to fasten DSP board to
chassis.
15. Place top cover. Re-insert screws.
2025177-013 Front-end Motherboard
1. Remove top cover. Keep screws aside.
2. Remove two screws fastening DSP board to chassis.
3. Remove DSP board from board.
4. Disconnect 8-conductor Inverter cable from DSP board connector J1.
5. Disconnect 20-conductor DSP-to-LCD Decoder ribbon cable from DSP board
connector J2.
6. Remove card cage cover. Keep screws aside.
7. Disconnect Ultrasound cables from Ultrasound board connectors.
8. Remove Ultrasound board from Front-end Motherboard.
9. Disconnect MSpO
2
cable from SpO
2
Carrier board connector.
10. Remove SpO
2
Carrier board assembly from Front-end Motherboard.
11. Disconnect MECG cable from MECG board connector.
12. Remove MECG/FECG board assembly from Front-end Motherboard.
13. Remove Isolated Power Supply board from Front-end Motherboard.
14. Remove three insulating metal sheets from Front-end Motherboard.
15. Remove five screws fastening the Front-end Motherboard to the chassis.
16. Remove two screws on both sides of monitor fastening the front bezel to the
chassis.
17. Tilt the front bezel forward, away from the chassis.
18. Remove MSpO
2
cable beads from chassis bead clips.
19. Remove MECG and FECG cable beads from chassis bead clips.
20. Remove FECG ground cable from chassis post by removing nut.
21. Disconnect FECG cable from Front-end Motherboard.
22. Disconnect IUP cable from Front-end Motherboard.
23. Remove Front-end Motherboard.
24. Slide new Front-end Motherboard under card cage onto chassis.
25. Fasten to chassis with five screws.
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