Criticare Systems, Inc.
VitalCare
TM
506N3 Series
Service Manual
Page 3-5
Section 3 —Theory of Operation
Block Diagram
The following block diagram is provided for the general understanding
of the 506N3 Series monitoring system.
The diagram below shows the system module interconnections.
Figure 3-1: 506N3 Series Board Interconnect Block Diagram
J1
J5
J2
J4
J3
J6
J7
J8
J11
J10
J9
P2
P1
J12
Not Used
Not Used
Not Used
RS232
Communication
LCD Connector
Speaker
J1
J2
J4
J3
MAIN
BOARD
(91384A001/2/3)
PRINTER
(91389A002)
PAPER FEED
button
Print Motor
Print Head
J1
J2
J4
J3
NELLCOR
CARRIER
BOARD
(91387A001)
SpO
2
Sensor
J2
DOX SpO2
(91389A001)
J1
DISPLAY
BOARD
(91388A001)
NELLCOR MODULE
J1
SpO
2
Sensor
506LN Series
506DN Series
J1
J2
J4
J3
FasT
emp
TEMPERA
TURE
ISOLA
TION BOARD
(91386A001)
Power
Communication
To FasTemp
Temperature
Module
NIBP Module
Front Membrane
12VDC Input
Battery
T
urboT
emp
TEMPERA
TURE
MODULE
(91403A001)
J1
Summary of Contents for 506DN3
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