iv
2.3.4 Main board assembly..................................................................................................................... 45
2.3.4.1 Block Diagram of Main Board.........................................................................................................45
2.3.4.2 Frontend of the Main Board............................................................................................................46
2.3.4.3 Backend of the Main Board ............................................................................................................47
2.3.5 PC Module ..................................................................................................................................... 48
2.3.5.1 PC Module.....................................................................................................................................48
2.3.6 GPU Module .................................................................................................................................. 48
2.3.6.1 GPU Module ..................................................................................................................................48
2.3.7 Probe Board ................................................................................................................................... 49
2.3.7.1 Probe Board ..................................................................................................................................49
2.3.8 Power Supply Unit ......................................................................................................................... 50
2.3.8.1 Block Diagram of Power Supply Unit ..............................................................................................50
2.3.8.2 AC-DC board .................................................................................................................................51
2.3.8.3 Mobile Trolley Connecting Board....................................................................................................51
2.3.8.4 Auxiliary Output Conversion Board.................................................................................................51
2.3.8.5 Battery Management Board ...........................................................................................................52
2.3.8.6 Wireless charging module..............................................................................................................53
2.3.8.7 Timing Sequence of System Power-on and Power-Off ...................................................................54
2.3.9 UI Unit ............................................................................................................................................ 57
2.3.9.1 Block Diagram of the UI Unit ..........................................................................................................57
2.3.9.2 Monitor Assembly ..........................................................................................................................58
2.3.9.3 Display conversion board...............................................................................................................59
2.3.9.4 Conversion Board of Movement Mechanism_PCBA.......................................................................59
2.3.10 Wireless Probe Charging Station ................................................................................................ 60
2.3.10.1 Wireless Probe Charging Station (Not Released) .........................................................................60
2.3.11 ECG Module................................................................................................................................. 60
2.3.11.1 ECG Module ................................................................................................................................60
2.3.12 System Power-on Control............................................................................................................ 62
2.3.12.1 System Power-on Control ............................................................................................................62
Diagnostic Ultrasound System
Service Manual
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