Mindray uMEC10, Service Manual

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6.6.2 Display Failures
Fault Symptom Possible Cause Countermeasure
Blank screen Cable defective or
improperly connected
1. Verify the signal cable and backlight cable
connecting the display to the main board are
correctly connected.
2. Verify the connecting cables and connectors
are not damaged.
Main board defective Replace the main board.
LCD defective Replace the LCD.
Images overlapped
or distorted
Main board error Replace the main board or use the downloaded
upgrade software to upgrade the main board
Cable defective or
improperly connected
1. Verify the signal cable and backlight cable
connecting the display to the main board are
correctly connected.
2. Verify the cables and connectors are not
damaged.
Secondary display
shows snow or
flashing specks
Secondary display
does not function
Cable defective or
improperly connected
1. Verify the cable connecting the display and
the patient monitor is correctly connected.
2. Verify the cables and connectors are not
damaged.
Main board failure Replace the main board.
Touchscreen does
not respond
Cable defective or
improperly connected
1. Verify the cable connecting the touchscreen
to the main board is properly connected.
2. Verify the cables and connectors are properly
connected
Touchscreen defective Replace the touchscreen.
Main board failure Replace the main board.
Touchscreen
response is not
accurate
Touchscreen not
calibrated
Calibrate the touchscreen.