Mindray A7 Service Manual

Technical Alarms Check Repair and Troubleshooting
5 - 4 046-006272-00 A7™ Service Manual
5.2.1 Startup Alarm Messages
Message Priority Cause Solution
Bundle Version Error
Bundle Version: Time
out
High
The software versions are
not compatible.
1. Update to the compatible software version again.
Flowmeter Selftest
Error
'Flowmeter Self Test:
Time out
High
The CPU, RAM, address line,
watchdog, Flash, O2/N2O/
air proportional valve self-
test error, O2/N2O/air
branch leakage, traffic zero
point error, FPGA self-test
error..
1. Restart the machine.
2. If the problem persists, replace the flow sensor board.
3. If the problem persists, replace the CPU board.
Aux Control Module
Selftest Error
Aux Control Module
Self Test: Time out
High
1.CPU, Flash, WTD error
2.After power on, the CPU
board can't communicate
with the auxiliary control
module.
1. Restart the machine.
2. Re-plug or replace the communication cable between the
CPU Board and the auxiliary control module.
3. If the problem persists, replace the auxiliary control
module.
4. If the problem persists, replace the CPU board.
Ventilator Selftest Error
Ventilator Self Test:
Time out
High
1.CPU, TIMER, RAM, WTD,
EEPROM or AD error
2.After power on, the CPU
board can't communicate
with the ventilator control
board.
1. Restart the machine.
2. Re-plug or replace the communication cable between the
CPU Board and the ventilator control board.
3. If the problem persists, replace the ventilator control board.
4. If the problem persists, replace the CPU board.
Ventilator Voltage Error High 5V or 12V voltage error
1. Restart the machine.
2. Measure the input voltage (voltage on the power cable) of
the ventilator control module to see if it is within
specifications. Check if the cable is defective.
3. If the input voltage is out of specification, replace the
power board or cable.
4. If the problem persists, replace the ventilator control board.
PEEP Valve Failure Med
1. PEEP valve voltage error.
2. PEEP valve pressure error.
1. Check if the pressure sensor on the PEEP circuit is within
specifications. Perform pressure sensor calibration in the
service menu or replace the sensor on the PEEP circuit when
the pressure error.
2. Measure the voltage at the corresponding test point
3. Check the connection between power supply and
expiratory valve assembly
4. Replace the Ventilator Control Board when necessary.
5. Replace the expiratory valve assembly.
6. Replace the power board when necessary
Insp Valve Failure Med
1. Insp valve voltage error.
2. Insp valve flow error.
1. Check if the Inspiratory flow sensor is within specifications.
Perform flow sensor calibration in Service menu or replace
the flow sensor when flow error occurs.
2. Measure the voltage at the corresponding test point
3. Check the connection between power supply and
expiratory valve assembly
4. Replace the Ventilator Control Board when necessary.
5. Replace the expiratory valve assembly.
6. Replace the power board when necessary
PEEP Safety Valve
Failure
Med
PEEP safety valve voltage
error.
1. Measure the voltage at the corresponding test point
2. Check the connection between power supply and
expiratory valve assembly
3. Replace the Ventilator Control Board when necessary.
4. Replace the expiratory valve assembly.
5. Replace the power board when necessary

Mindray A7 Specifications

General

Brand	Mindray
Model	A7
Category	Medical Equipment
Language	English