Revision A
Dash 3000/4000 Patient Monitor
9-19
2000966-339
Assembly Drawings:
Theory Of Operation
Main DC-DC Converter Section
The main DC-DC converter consists of two independent synchronous
rectifier buck regulators with one common controller.
The monitor uses a “point of use” power conversion architecture with +9-
18 V being the main power distribution bus.
Four voltage outputs are developed on the processor/power management
PCB:
+3.3 V,
+5 V,
+12 V, and
–12 V.
Each one of the four outputs are individually current limit protected
against overload and short circuit.
Battery Subsystem
Battery charging and control is accomplished on the processor/power
management PCB.
The battery is a smart battery and features an on-pack fuel gauge.
Optional Thermal Printer
The monitor uses the same 50-mm thermal printer module that is used
in the PRN 50 stand-alone printer. It prints up to four waveforms at
chart speeds ranging from 0.1 to 50 mm/s. The printer software is loaded
independently from the monitor’s software.
In the monitor, the printer module limits its current consumption to stay
within its allocated system power budget.
Speaker
The speaker is used for audible notification of alarms.
Summary of Contents for Dash 3000
Page 1: ...Dash 3000 4000 Patient Monitor Service Manual 2023896 023 Revision A ...
Page 11: ...Revision A Dash 3000 4000 Patient Monitor 1 1 2000966 339 1 Introduction ...
Page 12: ...1 2 Dash 3000 4000 Patient Monitor Revision A 2000966 339 For your notes ...
Page 19: ...Revision A Dash 3000 4000 Patient Monitor 2 1 2000966 339 2 Equipment Overview ...
Page 20: ...2 2 Dash 3000 4000 Patient Monitor Revision A 2000966 339 For your notes ...
Page 45: ...Revision A Dash 3000 4000 Patient Monitor 3 1 2000966 339 3 Installation ...
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Page 55: ...Revision A Dash 3000 4000 Patient Monitor 4 1 2000966 339 4 Maintenance ...
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Page 117: ...Revision A Dash 3000 4000 Patient Monitor 5 1 2000966 339 5 Troubleshooting ...
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Page 149: ...Revision A Dash 3000 4000 Patient Monitor 6 1 2000966 339 6 Configuration ...
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Page 173: ...Revision A Dash 3000 4000 Patient Monitor 7 1 2000966 339 7 Calibration ...
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