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 mother
board and from the backlight board to the button
board/display are correctly connected.
2. Check that the cables and connectors are not
damaged.
Backlight board
defective
Replace the backlight board.
Power module defective Replace the power module.
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 cables and connectors are not
damaged.
Secondary display
does not function.
DVI interface board
defective
Replace the DVI interface board.
Cables defective or
poorly connected.
1. Check that the cable between the display and the
patient monitor is correctly connected.
2. Check that the cables and connectors are not
damaged.
DVI interface board
defective
Replace the DVI interface board.
Secondary display
displays snows or
flashing specks
The mother board is
damaged.
Replace the mother 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
mother board is correctly connected.
2. Check that the cables and connectors are not
damaged.
Touchscreen does
not response
Touchscreen disabled
Check if there is a symbol
shown above the
[Main Menu] QuickKey. If yes, press the [Main
Menu] QuickKey for more than 3s to enable the
touchscreen.