Criticare Systems, Inc.
VitalCare
TM
506N3 Series
Service Manual
Page A-1
Appendix A —Main Board Upgrades
Overview
The VitalCare™ 506N3 Series Patient Monitor may have one of three
available Main Boards:
• 91384A001
• 91384A002
• 91384A003
Most monitors built prior to 2007 will have Main Board
(pn 91384A002), although some older monitors may be equipped
with Main Board (pn 91384A001). Monitors built in 2007 and beyond
will be assembled using Main Board (pn 91384A003) or later version.
Main Board (pn 91384A003) provides the monitor with a Battery
Disconnect Warning indicator when used with 1.5A software
or higher.
• Do not open the case. Sensitive electronic components may be
damaged by electrostatic discharge. Opening the case requires
an electrostatic discharge (ESD) protected work bench.
Battery Disconnect
Warning Indicator
The Battery Disconnect Warning indicator is intended to indicate that
the battery is either disconnected inside the monitor or the battery
internal circuit is open.
The Battery Disconnect Warning indicator will cause the “Battery
Indicator” light to flash red and green if the battery is not connected
while the monitor is connected to an AC power source. This feature is
intended to alert the user that the battery is not connected properly
and that the monitor should be serviced.
Backward Compatibility
The Main Board is backward compatible, meaning that older
machines using Main Board (91384A001 or A002) may be repaired
using Main Board (91384A003). Main Board (91384A003) will
function properly in older machines but the Battery Disconnect
Warning indicator function will not be available unless the monitor
is also updated with the newest software.
NOTE
: Check software revision after installing replacement Main
Boards to ensure that the replacement board has the most current
software installed.
NOTE
: The technology modules, such as the NIBP module,
have their own software and will not be updated with a Main
Board replacement.
CAUTION
!
!
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