BeneVision N22/BeneVision N19 Patient Monitor Service Manual 4-3
4.7 Troubleshooting Guide
4.7.1 Power On/Off Failures
Fault Symptom Possible Cause Countermeasure
Power on failure
AC mains not connected or
insufficient battery power or
battery damaged
Verify the AC mains is properly connected.
Verify the battery capacity is sufficient and
the batter is not damaged.
Cable defective or improperly
connected
Verify the cables connecting the power switch and
the LED board to the front housing interface board,
the cable connecting the front housing interface
board to the coaxial cable of main control, and the
cable connecting the power module to the DCDC
board are properly connected.
Note: The process for the coaxial cable connecting
the front housing interface board and the main
control is complicated; therefore, protective
measures must be adopted during installation to
prevent the coaxial cable from being damaged.
2. Verify the cables and connectors are not damaged.
Power switch & LED board defective Replace the power switch & LED board.
Power module defective Replace the power module.
Motherboard failure Replace the motherboard.
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