GE Corometrics 250cx Series Service Manual page 209

Revision C
Parts List, Drawings, and Replacement: Assembly/Disassembly of FRUs
47. Disconnect Power Supply cable from J8 connector on Main board.
48. Remove three flat-head screws from side of Power Supply.
49. Remove four pan-head screws from back of Power Supply.
50. Remove one pan-head screw from inside bottom of Power Supply.
51. Remove Power Supply from chassis.
52. Replace chassis assembly with new chassis assembly.
53. Place Power Supply onto chassis.
54. Fasten three flat-head screws into side of Power Supply.
55. Fasten four pan-head screws into back of Power Supply.
56. Fasten one pan-head screw into inside bottom of Power Supply.
57. Insert power supply power-switch connector into chassis.
58. Adhere new cable tie mount to side of chassis.
59. Use tie-wrap to fasten power-switch cable to cable-tie mount on chassis.
60. Place Main board with EMI plate onto chassis. Use six screws to fasten Main
board to chassis.
61. Connect speaker cable to Main board connector J10.
62. Connect power supply cable to Main board connector J8.
63. Place Comm. board onto Main board.
64. Fasten Comm. board onto chassis with four screws.
65. Place new Pneumatics assembly onto Main board
66. Insert two screws fastening Pneumatics assembly onto chassis.
67. Connect clear section of tubing from E1 to PT1 on Main board.
68. Connect clear section of tubing from E2 to PT2 on Main board.
69. Pull red tubes through chassis grommet towards Front-bezel.
70. Fasten Recorder assembly and mounting bracket to chassis with four M3.5x6
screws.
71. Connect Recorder EMC ground wire Fast-on tab to chassis.
72. Connect power supply cable to J1 connector on Recorder board.
73. Connect 20-conductor Recorder ribbon cable to Main board connector J9.
74. Slide new Front-end Motherboard under card cage onto chassis.
75. Fasten to chassis with five screws.
76. Insert three insulating metal sheets onto Front-end Motherboard.
77. Insert Isolated Power Supply board onto Front-end Motherboard.
78. Insert MECG/FECG board assembly onto Front-end Motherboard.
79. Insert SpO
80. Insert Ultrasound board onto Front-end Motherboard.
81. Insert front bezel into chassis tabs.
250cx Series Maternal/Fetal Monitor
2036947-001
Carrier board assembly onto Front-end Motherboard.
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