BCI Advisor, Service Manual

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Chapter 3: Block Level Description
Advisor
®
Service Manual 3-1
Advisor® Vital Signs Monitor Product Description
This vital signs monitor is intended to be used in the ICU, CCU, OR, ER, RR, Labor and Delivery rooms, special
procedure labs and other areas of a hospital or clinic where low-end monitoring systems are needed. The Advisor
is a factory configurable monitor offering many combinations of monitoring parameters for adult, pediatric, and
neonatal patients (some optional parameters are not intended for neonatal use). Standard parameters are 3-lead
Electro-cardiography (ECG), Non-Invasive Blood Pressure (NIBP), and Pulse Oximetry (SpO
2
). Optional parameters
include 5-lead ECG, Impedance Respiration (adult and pediatric modes only), dual Invasive Blood Pressure (IBP),
dual Temperature (TEMP), and Sidestream Capnography (adult and pediatric modes only). Other system options
include an internal rechargeable backup battery and battery charger, a graphical thermal printer, and a serial
communications port.
The Advisor uses a 10.4” color Liquid Crystal Display (LCD) at 640 x 480 pixel resolution. The user controls include
five dedicated pushbutton keys and a general-purpose rotary encoder for highlighting and selecting onscreen
menu areas. The internal AC to DC power supply accepts universal AC mains voltage by way of a medical grade
industry standard IEC-320 connector that provides external access to fuses on both Line and Neutral circuits, as
well as two spares.
The standard Advisor (configured for standard parameters) contains seven circuit board assemblies: the AC
Power Entry Board, the universal AC to DC Power Supply Assembly, the DC Power Interconnect Board, the Pulse
Oximetry Board, the NIBP Board, and the LCD Backlight Inverter Board and the Main Board. All non-standard
parameters and system options are added to the Advisor Vitals Signs Monitor by way of additional circuit board
assemblies. The optional boards are: IBP/Temperature Board, Impedance Respiration Board, Printer Adapter
Board, Serial Interface Board, Battery Charger Board, and CO
2
Module.
The Main Board is the largest circuit board and provides the majority of the Advisor functionality: power on/
standby control, power distribution, patient isolation, parameter signal acquisition, parameter signal processing,
internal and external serial data communications, user control interface, LCD display control, realtime clock and
trend memory battery backup, speaker driver, and critical failure monitoring.
AC Power Entry Board
WARnInG! Shock Hazard. This circuit board assembly operates at AC mains potential and is energized
whenever the power cord is plugged into the mains supply, regardless if the Advisor
®
is on or
in the STAnDBY/oFF mode. never service this equipment while AC power is connected to the
monitor.
The AC Power Entry Board brings AC mains voltage into the rear half of the chassis, performs Electro-Magnetic
Compatibility (EMC) filtering, and provides connection points for internal protected earth wiring. All components
on this circuit board assembly can be considered critical components; meaning replacement parts must be
identically rated. The AC mains connector (PE1) is a medical-grade IEC-320 power input receptacle that fuses
both the LINE and the NEUTRAL inputs. Two spare fuses are also stored in the fuse compartment. Be sure to
replace fuses with the exact replacement fuses indicated on the rear of the unit. The output of this board is a
two-wire harness (J1 is line and J2 is neutral), at AC line potential, which connects to the input of the Universal
AC to DC power supply (TB1).
Chapter 3: Block Level Description