Mindray A7 Service Manual

Technical Alarms Check Repair and Troubleshooting
5 - 6 046-006272-00 A7™ Service Manual
5.2.1.1 EFCS Selftest Error Alarm Numbering Conventions
Internal AG Selftest
Error 02
Internal A: Time out
Low
The internal AG module
malfunctions.
1. Restart the machine.
2. Re-plug the cable between the internal AG module and
the CPU board.
3. Replace the internal AG module.
Flowmeter Selftest
Error
Flowmeter Selftest:
Time out
High
See “EFCS Selftest Error
Alarm Numbering
Conventions” on page 5-6.
See “EFCS Selftest Error Alarm Numbering Conventions” on
page 5-6.
Message Priority Cause Solution
ID No Cause Solution
0x00000001 CPU selftest error.
1. Restart the machine.
2. If the problem still persists, it belongs to hardware failure. It may be 0632 EFCS
VCM board PCBA failure. Replace with a new board and return the faulty board
to R&D.
0x00000002 RAM selftest error.
0x00000004 Address line selftest error.
0x00000008 Watchdog selftest error
0x00000010 FLASH selftest error.
0x00000020
O2 Prop Valve selftest
error.
1. Open the rear cover plate. Check if the proportional valve cable J7 in the EFCS
module is properly inserted.
2. If cable connection is checked in good condition, give priority to replacing
0632 EFCS VCM board PCBA.
3. If the problem still persists after board replacement, replace the O2 Prop
Valve and return the faulty board or proportional valve to R&D.
0x00000040
AIR Prop Valve selftest
error.
1. Open the rear cover plate. Check if the proportional valve cable J7 in the EFCS
module is properly inserted.
2. If cable connection is checked in good condition, give priority to replacing
0632 EFCS VCM board PCBA.
3. If the problem still persists after board replacement, replace the AIR Prop
Valve and return the faulty board or proportional valve to R&D.
0x00000080
N2O Prop Valve selftest
error.
1. Open the rear cover plate. Check if the proportional valve cable J7 in the EFCS
module is properly inserted.
2. If cable connection is checked in good condition, give priority to replacing
0632 EFCS VCM board PCBA.
3. If the problem still persists after board replacement, replace the N2O Prop
Valve and return the faulty board or proportional valve to R&D.
0x00000100 O2 flow leakage.
1 Select [Setup]?[Service]?[Data Monitors]?[Component]?[FCS].
2. Check the value of "O2 Limb Flow". Make sure that this value exceeds
0.07LPM. Then disconnect O2 supply (eject BFCS and open needle valve in O2
limb to exhaust the excess gas to prevent gas inside the pipeline from affecting
the leak test result). After restarting the machine, if this alarm is still triggered, it
is considered that Sensirion flow sensor in O2 limb is faulty. Replace this flow
sensor.
3. If the fault disappears after O2 supply is disconnected, it can be considered
that O2 Prop Valve cannot be closed. Consider to replace O2 Prop Valve and
return the faulty flow sensor or proportional valve to R&D.

Mindray A7 Specifications

General

Brand	Mindray
Model	A7
Category	Medical Equipment
Language	English