ZOLL Propaq MD Rev A - Manual (Page 91)

9650-0807-01 Rev. A Propaq MD Service Manual 87
Chapter 5
Functional Description
Overview
This chapter contains functional descriptions of the components contained in the Propaq MD
and the Propaq MD options.
Circuit Distribution
The Defib/Monitor Propaq MD unit consists of two key PCB assemblies, the Monitor Board
and the Defibrillator Board as well as a few modules and assemblies: the Front Panel Keypad
assembly, Status LCD Board, Dock Connector Board, Display, and Printer. The NIBP, CO2,
and SpO2 circuitry reside on modules that connect to the Monitor Board.
Monitor Board
The Monitor board integrates the analog circuitry and interface circuitry for patient parameters,
a digital processing section as well as user interface controls, printer control, audio control, and
power circuitry for the entire system and charging circuitry for the battery. The Propaq MD
system relies on a centralized dual processor engine for its computing needs. The Main
Processor (MP) serves as the primary user interface engine and provides connectivity needs,
while the Patient Processor (PP) controls the patient monitoring and defibrillation-pacing
functions. An additional power controller micro-controller (PC) controls the power sequencing,
and battery/charger interface.