System Failure 29; System Failure 30; System Failure 33 - GE Giraffe OmniBed Carestation CS1 Service Manual

6.2.17 System Failure 19
System failure 19 indicates: No Audio Frequency.
Cause(s)
Defective PF Battery
Defective scale
Defective scale harness
Defective Servo Oxygen
board
Defective Servo Oxygen
cable
Defective audio circuit on
control board
Defective control board
6.2.18 System Failure 20
System failure 20 indicates: Display WDOG Time Out.
Cause(s)
SBC board software is not
performing correctly.
6.2.19 System Failure 22
System failure 22 indicates: During operation, either the radiant heater or the incubator heater will not
turn ON.
Cause(s)
Refer to other errors.
Error reading distorted line
signal.
Service Manual
Action(s)
PF Battery is only used for power fail. Try powering up the device with the
battery disconnected. If the error clears, replace the battery.
Disconnect scale connector at probe panel. Power cycle the device. If the
error clears, replace the scale.
Disconnect scale harness from J7 on the control board. Power cycle the
device. If the error clears, replace the scale harness.
Disconnect the RS485 harness from J8 on the Servo Oxygen board. Power
cycle the device. If the error clears, replace the Servo Oxygen Board.
Disconnect RS485 bus cable from J6 on the control board. Power cycle the
device. If the error clears, replace the RS485 cable going to the Servo
Oxygen board.
Replace socketed IC U22 on control board. If failure persists, replace the
control board.
Replace the control board.
Action(s)
Replace the SBC board.
Action(s)
Power down the device. During the system tests after power-up, the
device should detect system failure 15, radiant heater failure, or bed
heater failure. Follow the instructions in this manual for those failures.
Refer to relay board Figure
Refer to the instructions in this manual for system failure 15 (section
6.2.13).
Chapter 6: Alarms and System Failure Codes
8-41.
System Failure Codes
6-19