GE Giraffe OmniBed Carestation CS1, Service Manual

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Chapter 6: Alarms and System Failure Codes
System Failure Codes
Service Manual 6-13
6.2.2 System Failure 1
System failure 1 indicates:
No Timer2.
6.2.3 System Failure 2
System failure 2 indicates: Timer2 too fast.
Defective Servo Oxygen
cable 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.
Defective PF Battery The battery is used only for power failure. Try powering up the device with
the battery disconnected. If the error clears, replace the battery.
Defective 14 pin ribbon
cable between control
board and SBC Check that the 14 pin ribbon cable is properly seated at J6 on the control
board and at J23 on the SBC. (Have all three parts on hand and try them
one at a time. Try routing the cable around the outside of device first, then
try the SBC, and then try the control board. If the error is intermittent,
replace all three.)
Defective SBC Replace SBC.
Defective control board Replace control board.
Cause(s) Action(s)
Cause(s) Action(s)
The Timer2 circuit of the
microprocessor on the
control board is defective. Replace the control board.
Cause(s) Action(s)
Defective scale Disconnect scale connector at probe panel. Power cycle the device. If the
error clears, replace the scale.
Defective scale harness Disconnect scale harness from J7 on the control board. Power cycle the
device. If the error clears, replace the scale harness.
There is no line frequency
signal to feed timer0 and
timer1 of the
microprocessor on the
control board, or the
timer2 of the
microprocessor on the
control board, is defective. Power cycle the device. If system failure 8 appears, refer to the instruction
in this chapter for system failure 8 (section
6.2.8 ). If system failure 2
persists, replace the control board.