4-3
4.6.2 Display Failures
Symptoms Possible Cause Corrective Action
Cables defective or
poorly connected.
1. Check that cables from the display to the main
board and from the backlight board to the main board
are correctly connected.
2. Check that the cables and connectors are not
damaged.
Backlight board
defective
Replace the backlight board.
Integrated
display is blank
but the patient
monitor still
works correctly.
Display defective Replace the display.
Cables defective or
poorly connected.
1. Check that the cable between the display and the
patient monitor is correctly connected.
2. Check that the cable from power management and
interface board to main board is correctly connected.
3. Check that the cables and connectors are not
damaged.
Secondary
display does
not function or
displays snows
Main board defective Replace the main board.
FPGA error. Update or upgrade FPGA. Images
overlapped or
distorted
Cables defective or
poorly connected.
1. Check that the cable between the display and main
board is correctly connected.
2. Check that the cables and connectors are not
damaged.
Touchscreen disabled
Check if there is a red padlock symbol
shown
above the [Home] QuickKey. If yes, press the [Home]
QuickKey for more than 3s to enable the touchscreen.
Cables defective or
poorly connected.
1. Check that the cables from the touchscreen to the
touchscreen board, the touchscreen board to the main
board are correctly connected.
2. Check that the cables and connectors are properly
connected.
Touchscreen board
defective
Replace the touchscreen board.
Touchscreen
defective.
Replace the touchscreen.
Touchscreen
does not
response
Main board defective Replace the main board.
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