Philips M3921A Service Manual page 66

Troubleshooting Guide
54
Hex Code Explanation
3 NiBP Pressure Violation Error.
• The pressure on the cuff
could not be removed by
normal means.
• A fault has been detected in
the NiBP system that could
not be handled by releasing
pressure by normal means.
• NiBP system has released
pressure using safety valve.
4 The measured value of the 3.3V
power supply is low.
5 The measured value of the 3.3V
power supply is high.
6 The measured value of the 12V
power supply is low.
7 The measured value of the 12V
power supply is high.
8 The measured value of the 5V
power supply is low.
9 The measured value of the 5V
power supply is high.
A The measured value of the
isolated reference supply on the
front end is low.
B The measured value of the
isolated reference supply on the
front end is high.
C The measured value of the
isolated reference supply on the
front end is high.
64 The SpO module is sending an
2
error message to the host CPU.
Recommended Action
1. Cycle power.
2. Check for blocked tubing in
the pneumatic system.
3. Replace Main PCB.
Note: This error may occur
during a blood
pressure measurement
in STAT mode, if the leg
cuff is used.
1. Check power supply.
2. Replace power supply
assembly.
1. Check power supply.
2. Replace power supply
assembly.
1. Check power supply.
2. Replace power supply
assembly.
1. Check power supply.
2. Replace power supply
assembly.
1. Check power supply.
2. Replace power supply
assembly.
1. Check power supply.
2. Replace Main PCB.
1. Check power supply.
2. Replace Main PCB.
1. Check power supply.
2. Replace Main PCB.
1. Check power supply.
2. Replace Main PCB.
1. Ensure MP-205 module is
properly connected.
2. Replace MP-205 module.
3. If problem persists, replace
Main PCB.
Chapter 5 - Troubleshooting