Nellcor OxiMax N-550, Service Manual

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Contents
N-550 v
F i g u r e s
Figure 1: N-550 Front Panel .............................................................................. 3
Figure 2: N-550 Rear Panel .............................................................................. 3
Figure 3: N-550 Controls ................................................................................... 9
Figure 4: Adjusting High %SpO2 Alarm Limit ................................................. 12
Figure 5: Adjusting Low %SpO2 Alarm Limit .................................................. 13
Figure 6: Adjusting High Pulse Rate Alarm Limit ............................................ 14
Figure 7: Adjusting Low Pulse Rate Alarm Limit ............................................. 14
Figure 8: Adjusting SatSeconds Alarm Limit ................................................... 15
Figure 9: N-550 Controls ................................................................................. 29
Figure 10: Year Month Display .......................................................................... 36
Figure 11: Day Hour Display ............................................................................. 36
Figure 12: Minute Second Display .................................................................... 37
Figure 13: N-550 Rear Panel Screws ............................................................... 57
Figure 14: N-550 Case Screws ......................................................................... 57
Figure 15: Top Case Removal .......................................................................... 57
Figure 16: Separated Cases ............................................................................. 58
Figure 17: Front case Wiring ............................................................................. 59
Figure 18: Front Case Mounting Screws ........................................................... 59
Figure 19: Front Case Bracket .......................................................................... 60
Figure 20: Speaker Removal ............................................................................ 60
Figure 21: Front PCB Removed ........................................................................ 60
Figure 22: MP-506 Cable Connections ............................................................. 61
Figure 23: MP-506 Removal ............................................................................. 62
Figure 24: Front case Wiring ............................................................................. 62
Figure 25: Front Case Mounting Screws ........................................................... 63
Figure 26: Main PCB Removal .......................................................................... 63
Figure 27: Main PCB Removed ........................................................................ 64
Figure 28: Power Supply Wiring ........................................................................ 65
Figure 29: Power Supply Screws ...................................................................... 65
Figure 30: Power Supply Removed .................................................................. 66
Figure 31: Fan Wires ......................................................................................... 66
Figure 32: Fan Bracket Removal ...................................................................... 67
Figure 33: Fan and Bracket Removal ............................................................... 67
Figure 34: Fan Screws ...................................................................................... 68
Figure 35: Battery Connections ......................................................................... 68
Figure 36: Battery Removed ............................................................................. 69
Figure 37: Ground Wire ..................................................................................... 70
Figure 38: Equipotential Ground Terminal ........................................................ 70
Figure 39: Equipotential Ground Terminal Removed ........................................ 71
Figure 40: Exploded View ................................................................................. 76
Figure 41: Packing ............................................................................................ 78
Figure 42: Data Port Pin Layout ........................................................................ 92
Figure 43: Real-Time Printout ........................................................................... 94
Figure 44: Oxyhemoglobin Dissociation Curve ............................................... 101
Figure 45: MP-506 Interface ........................................................................... 103
Figure 46: Block Diagram ................................................................................ 105
Figure 47: Battery Charger Schematic Diagram ............................................. 111
Figure 48: Main PCB Isolation for MP-506 Schematic Diagram .....................113