13-10 Troubleshooting of Regular Malfunctions
Display indicator is off.
The locking indicator of
video output for PC module
is on.
3
The control panel powered
on normally; no keys turn to
orange.
“No Signal” appears on the
display;
Yellow indicator of the
display is on.
The locking indicator of
video output for PC module
is off.
No DVI signal input to the display,
normal display of 10.4-inch
monitor. Improper connection of
DVI signal cord or connection
error, PC carrier board error.
Judge in field, after
replacing PC carrier
board to see if it works.
No DVI signal input to the display.
The touch screen does not
display. CPU module error.
Replace CPU module.
4 LCD works normally;
No display (blank screen) on
10.4-inch LCD;
Improper connection of the power
cord for the display or display
error.
Check power cord or
replace 10.4-inch
monitor.
13.8 ECG Module Failure
13.8.1 Related Modules or Boards
No. Description Remarks
1 PCBA on ECG board /
2 PCBA on engine board /
13.8.2 Key Points Supporting Troubleshooting
No. Key Points Supporting Troubleshooting Remarks
1 Wave features of ECG signal /
2 Self test for ECG Module Information Read Test.
Confirm whether the signal
processing board communicates
normally with ECG module.
3 Self test for ECG Module Self Test. Self test for ECG module.
13.8.3 Troubleshooting for ECG Module
No.
Fault
Description
Cause Analysis Solution
1 Fail to open
ECG relevant
functions.
ECG_12 V provides power for ECG
module. If ECG is disabled, it indicates
communication error of ECG serial port,
or connection error of ECG module. The
Self test for the serial
communication between
engine board and ECG