Mindray WATO EX-55Pro, Service Manual

Page: 262 / 474

8-8
8.2.3 Power Board Runtime Alarms
Message
Alarm
Priority
Cause Solution
Power System
Comm Stop
High
The CPU board
loses
communication
with the power
board for 10s
consecutively.
1. Restart the anaesthesia machine.
2. Reconnect the communication cable.
3. Remove the internal battery. Shut down the
power supply of the power board for 5 minutes,
and then restart the power board.
4. Replace the communication cable.
5. Check whether the software of the power
board is normal. If necessary, upgrade the
software of the power board.
6. If the problem persists, replace the power
board.
7. If the problem persists, replace the CPU
board.
Power Supply
Voltage Error
High
3.3 V, 5 V, or 12 V
voltage error
1. Test the voltage at the corresponding testing
point.
2. Remove the internal battery. Shut down the
power supply of the power board for 5 minutes,
and then restart the power board. 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
The battery voltage
is lower than 10.6
V for 5s
consecutively.
1. Check the AC power connection, and
reconnect the AC power supply.
2. Check whether the battery voltage is within
the valid range.
3. Check whether the charging circuit runs
normally. If not, replace the power board.
System going
DOWN,
Battery
depleted!
High
The battery voltage
is lower than
10.2V.
1. Restart the anaesthesia machine.
2. If the problem persists, check the battery
voltage on the [
Maintenance
] menu. If the
voltage is lower than 10.2V, replace the battery.
3. If the problem persists, connect the machine
to the AC power supply, ensure that the AC
indicator is on, and charge the battery for 20
minutes.
4. If the problem persists, replace the battery.
5. If the problem persists, replace the power