2
4.4.1 Entering/Quitting Maintenance Mode ............................................................. 4-10
4.4.2 Checking Version Information ............................................................................. 4-12
4.4.3 Restoring Factory Default Configuration ........................................................ 4-13
5 Troubleshooting ....................................................................................................... 5-1
5.1 Overview ..................................................................................................................................... 5-1
5.2 Parts Replacement ................................................................................................................... 5-1
5.3 Troubleshooting Guide .......................................................................................................... 5-1
5.3.1 Power On/Off Failure ................................................................................................. 5-1
5.3.2 Display Failures ............................................................................................................ 5-2
5.3.3 Button Failures ............................................................................................................. 5-2
5.3.4 Battery Failures ............................................................................................................. 5-2
5.3.5 Module defective ........................................................................................................ 5-3
5.4 Error codes .................................................................................................................................. 5-3
6 Disassembly and Repair .......................................................................................... 6-1
6.1 Tools Required ........................................................................................................................... 6-1
6.2 Preparations for Disassembly .............................................................................................. 6-1
6.3 Disassembling the Main Unit ............................................................................................... 6-2
6.3.1 Disassembling the Temperature Module (Optional) ...................................... 6-2
6.3.2 Separating the Front and Rear Half of the Monitor ........................................ 6-2
6.3.3 Removing the Parameter Connector Panel Assembly ................................... 6-3
6.3.4 Disassembling the Main Bracket Assembly ....................................................... 6-4
6.3.5 Removing the Parameter Board (SpO
2
Optional) and Power Management
Board .......................................................................................................................................... 6-5
6.3.6 Disassembling Pumps and Valves ......................................................................... 6-6
6.3.7 Disassembling AC/DC Power Board and Battery Converter Board ........... 6-6
6.4 Disassembling the Front Housing Assembly ................................................................. 6-7
6.4.1 Removing the Main Board ....................................................................................... 6-7
6.4.2 Removing the Display ............................................................................................... 6-8
6.4.3 Removing the Keypad ............................................................................................... 6-8
6.5 Disassembling the Temperature Module (Optional) ................................................... 6-9
6.5.1 Removing the Temperature Module PCBA and Temperature Module Power
Board PCBA .............................................................................................................................. 6-9
6.5.2 Disassembling the Temperature On-Position Detection Board PCBA ..... 6-9
7 Parts .......................................................................................................................... 7-1
7.1 Introduction ............................................................................................................................... 7-1
7.2 Main Unit ..................................................................................................................................... 7-1
7.2.1 Exploded View .............................................................................................................. 7-1
7.2.2 Parts List ......................................................................................................................... 7-2
7.3 Front Housing Assembly........................................................................................................ 7-3
7.3.1 Exploded View .............................................................................................................. 7-3