Mindray DC-8 EXP

Troubleshooting of Regular Malfunctions 13-1
13 Troubleshooting of Regular
Malfunctions
13.1 Troubleshooting When System Can’t Be
Powered on
13.1.1 Module or Board Related
No.
Descriptions
Remarks
1
Front-end power main board PCBA
2
Front-end power auxiliary board PCBA
3
Front-end power board PCBA
4
AC-DC assembly
5
Back-end motherboard PCBA
6
Digital board module
7
CPU module
8
Connecting board PCBA
13.1.2 Key Points Supporting Troubleshooting
No.
Key Points Supporting Troubleshooting
Remarks
1
Power-on status indicator
Backlight of the power button
2
AC power indicator
Located on minor panel
3
Three Power indicators
12V, 5V, 3.3V, located on IO board
13.1.3 Troubleshooting When System Can’t Be Powered on
No.
Failure Description
Cause Analysis
Measure
1
Circuit breaker tripping
Malfunction on the AC-DC
power
Replace AC-DC
assembly