Mindray A7 Service Manual

Technical Alarms Check Repair and Troubleshooting
5 - 8 046-006272-00 A7™ Service Manual
5.2.2 CPU Board Runtime Alarm
5.2.3 Power Board Runtime Alarm
Message Priority Cause Solution
IP Address Conflict Med
The IP address is same
with other machine in
the local network.
1. Set the IP address again.
2. If the problem persists, update the system software code or
replace the CPU Board.
Fan Failure Med
The speed of the fan is
20% off of the nominal
value.
1. Check if the fan stops running or runs slowly (around 4000
rounds normally).
2. Plug in and out the fan power cable again.
3. If the problem persists, check if 12V for fan power supply on the
power board is within specifications. If not, check the power
board.
4. If the problem persists, replace the fan.
5. If the problem persists, replace the CPU board.
Fan Failure 02 Med
The speed of module
rack fan is less than 3640
rounds/min.
1. Check if the fan stops running or runs slowly (around 4000
rounds per minute normally).
2. Plug in and out the fan power cable again.
3. If the problem persists, check if 12V for fan power supply is
within specifications. If not, check the power board.
4. If the problem persists, replace the fan.
5. If the problem persists, replace the CPU board.
Message Priority Cause Solution
Power System Comm Stop High
Lost
communication
with CPU board
for 10 seconds.
1. Restart the machine.
2. Re-plug the communication cable.
3. Disconnect the battery from the AC mains. After the power
board processor is powered off for 5 minutes, power it on again.
4. Replace with a new communication cable.
5. Check if the power board software is correct. Update the power
board software again when necessary.
6. If the problem persists, replace the Power Board.
7. If the problem persists, replace the CPU Board.
Power Supply Voltage Error High
3.3V, 5V, 12V
voltage error
1. Measure the voltage at the corresponding test point.
2. Disconnect the battery from the AC mains. After the power
board processor is powered off for 5 minutes, power it on again.
Repeat Step 1
3. If the problem persists, replace the Power Board.
4. If the problem persists, contact the technical support.
Low Battery Voltage! High
Battery voltage is
less than 10.6V for
5 seconds.
1. Check the connection to the AC mains. Re-connect the AC mains
immediately.
2. Check if the battery voltage is within specifications.
3. Check if the charging circuit is working correctly. If not, replace
the Power Board.
System going DOWN,
Battery depleted!
High
Battery voltage is
less than 10.2V.
1. Restart the machine.
2. If the problem persists, connect to the normal mains supply.
Make sure that the AC indicator is lit and charges the battery for 20
minutes.
3. If the problem persists, replace the battery.
4. If the problem persists, replace the power module.
Battery Undetected Med
Battery
Undetected
1. Check if the battery voltage is within specifications.
2. Check if the cable is connected correctly.
3. Replace the battery.
4. If the problem persists, replace the power board.

Mindray A7 Specifications

General

Brand	Mindray
Model	A7
Category	Medical Equipment
Language	English