Mindray A7 Service Manual

Ventilator Control and Drive Theory of Operation
1 - 62 046-006272-00 A7™ Service Manual
3 7Vout Inspiration Valve Power Supply
4INSP_VALVE Inspiration Valve Drive Signal
5 7Vout_or_5Vout PEEP Valve Power Supply
6 PEEP_VALVE PEEP Valve Drive Signal
7 ACGO+ Positive End of the ACGO Valve Drive Signal
8 ACGO- Negative End of the ACGO Valve Drive Signal
9VBB1 Electromagnet Power Supply
10 GND Ground
11 12VB_4 Stepper Motor Power Supply
12 GND Ground
13 12VB_5 Reserved Three-Way Valve Power Supply
14 VBB2 Power Supply of the EFCS VCM CPU And Total Flow Meter Backlight
15 GND Ground
16 12VB_2 Power Supply of the EFCS VCM
17 GND Ground
18 VF Differential Pressure Sensor Flow Signal
19 12VA_4 12 V Power Supply
20 GND Ground
21 12VB_3 Proportional Valve Power Supply (range: 10.8V~13.2V)
22 GND Ground
23 ACGO_switch ACGO Pressure Switch Signal
24 GND Ground
25 O2_PRE_SW O2 Pressure Switch Signal at Gas Supply Inlet
26 GND Ground
27 PNEUM_PRES_SW Pneumatic Block Pressure Switch Signal
28 GND Ground
29 MANU_AUTO_SW Auto/Manual Switch Signal
30 GND Ground
31 CO2_BYPASS_SW Circuit CO2 Absorber Canister Signal
32 GND Ground
33 NC No Connection
34 GND Ground
35 O2+ O2 Concentration Signal
36 O2- Ground
37 LOOP_SW Circuit Switch
38 GND Ground
39 NTC_R11 Signal of Thermistor 1
40 NTC_R12 Signal of Thermistor 2
41 NTC_R21 Signal of Thermistor 1
42 NTC_R22 Signal of Thermistor 2
43 HEA_PWR_15V Heater Drive Voltage Signal
44 HEA_PWR_15V Heater Drive Voltage Signal
45 GND Ground
PIN NAME FUNCTION

Mindray A7 Specifications

General

Brand	Mindray
Model	A7
Category	Medical Equipment
Language	English