Theory Of Operation - Datascope Accutorr Plus Service Manual

Theory of Operation

1.0
1.1 Major Functional Blocks of the Accutorr Plus .............................. 1-2
1.2 CPU/NIBP Module Assembly with LCD Display ............................ 1-3
1.3 SpO2 Processor Circuit Boards ..................................................... 1-11
1.4 Main Power Supply .......................................................................... 1-14
1.5 LED and Tone Module ..................................................................... 1-16
This section of the manual explains the basic architecture of the Accutorr Plus. It is an
overview, not a detailed circuit analysis. It is intended to be a tool, that if used properly,
will lead to an understanding of the functions executed by a major functional block, and
thus enabling a logical isolation and resolution of malfunctions.
The Accutorr Plus is offered in many functional configurations, including the options
licensed and manufactured by third parties. The third party circuits will be treated solely
as "black box" devices, with only the relevant input, output and power sources described.
The Theory of Operation section describes only the highest configuration level. Units built
with fewer or different options may not use all of the capabilities of the Accutorr Plus, yet
the over-all theories will remain constant.
Accutorr Plus Service Manual 0070-10-0691 1 - 1