Mindray BeneVision N19, Service Manual

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BeneVision N22/BeneVision N19 Patient Monitor Service Manual 1
Contents
1 Safety ................................................................................................................................................................................. 1-1
1.1 Safety Information .......................................................................................................................................................................................... 1-1
1.1.1 DANGER ................................................................................................................................................................................................ 1-2
1.1.2 Warnings .............................................................................................................................................................................................. 1-2
1.1.3 Cautions ............................................................................................................................................................................................... 1-2
1.1.4 Notes ..................................................................................................................................................................................................... 1-2
1.2 Equipment Symbols ....................................................................................................................................................................................... 1-2
2 Operation Theory .............................................................................................................................................................. 2-1
2.1 Overview ............................................................................................................................................................................................................ 2-1
2.2 Product System Architecture ...................................................................................................................................................................... 2-1
2.2.1 Functions of the Main Control Module ..................................................................................................................................... 2-3
2.2.2 AC-DC Module ................................................................................................................................................................................... 2-4
2.2.3 Functions and Socket Definitions of the DCDC Board ........................................................................................................ 2-4
2.2.4 Front Housing Interface Board ..................................................................................................................................................... 2-7
2.2.5 iView Substrate .................................................................................................................................................................................. 2-8
2.3 Power System ................................................................................................................................................................................................... 2-8
2.3.1 Power Diagram of the Main Unit and the Module Rack ..................................................................................................... 2-8
2.3.2 The Secondary Screen of N22/N19 Uses Independent AC Adapter for Power Supply ............................................ 2-9
2.4 Signal Logic Flow ............................................................................................................................................................................................ 2-9
2.4.1 Startup Signal Flow .......................................................................................................................................................................... 2-9
2.4.2 Display Signal Flow ....................................................................................................................................................................... 2-10
2.4.3 Display Brightness Control ......................................................................................................................................................... 2-11
2.4.4 Module Initialization ..................................................................................................................................................................... 2-12
3 Testing and Maintenance .................................................................................................................................................. 3-1
3.1 Introduction ...................................................................................................................................................................................................... 3-1
3.1.1 Test Equipment .................................................................................................................................................................................. 3-1
3.1.2 Preventative Maintenance ............................................................................................................................................................. 3-1
3.1.3 Recommended Frequency ............................................................................................................................................................ 3-2
3.2 Preventative Maintenance Procedures ................................................................................................................................................... 3-3
3.2.1 Visual Inspection ............................................................................................................................................................................... 3-3
3.2.2 NIBP Tests ............................................................................................................................................................................................. 3-4
3.2.3 Sidestream and Microstream CO
2
Tests .................................................................................................................................... 3-6
3.2.4 AG Tests ................................................................................................................................................................................................ 3-8
3.3 Power On Test ................................................................................................................................................................................................ 3-11
3.4 Module Performance Tests ....................................................................................................................................................................... 3-11
3.4.1 ECG Tests ........................................................................................................................................................................................... 3-11
3.4.2 Resp Performance Test ................................................................................................................................................................. 3-12
3.4.3 SpO
2
Test ........................................................................................................................................................................................... 3-12
3.4.4 NIBP Tests .......................................................................................................................................................................................... 3-12
3.4.5 Temp Test .......................................................................................................................................................................................... 3-13
3.4.6 IBP Tests ............................................................................................................................................................................................. 3-13