Mindray A7 Service Manual

A7™ Service Manual 046-006272-00 1 - 65
Theory of Operation Ventilator Control and Drive
Anesthetic Ventilator Cooling Fan Interface, J7
Speaker Interface, J8
Battery Adaptation Board Interface, J9
Power Board Interface, J10
6 12V 12V Power Supply
7 RXD_CALIBRATE Calibration Serial Port Receive Signal
8 TXD_CALIBRATE Calibration Serial port Transmit Signal
9GND Ground
PIN NAME FUNCTION
1 12VA_3 12V Power Supply
2RSVD Reserved
3 FAN1_STATE Fan Status Signal
4GND Ground
PIN NAME FUNCTION
1Speak+ Speaker Positive End
2Speak- Speaker Negative End
PIN NAME FUNCTION
1BAT1+ Battery Voltage
2NTC1 Battery Internal Thermistor
3 BC1 Battery In-position Signal
4GND Ground
5BAT2+ Battery Voltage
6NTC2 Battery Internal thermistor
7 BC2 Battery In-position Signal
8GND Ground
PIN NAME FUNCTION
1 PLAM Buzzer Drive Signal (drives the buzzer directly)
2 RXD_PWR_BRD Power Board Serial Port (receives signal)
3 LOOP_SW Circuit Switch (reflects if the circuit is in position)
4 TXD_PWR_BRD Power Board Serial Port (transmits signal)
5 NC Power Board Cooling Fan Drive
6GND Ground
7 LED-BAT Battery Status Indicator Light Drive Output
8 LCD_EN Backlight Enable Signal
9 LED-AC AC Status Indicator Light Drive Output
10 LCD_BR Backlight Brightness Control Voltage
PIN NAME FUNCTION

Mindray A7 Specifications

General

Type	Anesthesia Workstation
Brand	Mindray
Model	A7
Display	15-inch color touchscreen
Oxygen Flush	Yes
Gas Inlets	O2, N2O, Air
Ventilation Modes	SIMV, PSV
Breathing System	Integrated
Gas Monitoring	O2, CO2, N2O
Monitoring Parameters	FiO2
CO2 Monitoring	Mainstream or Sidestream
Power Supply	100-240 V, 50/60 Hz