System Failure 1; System Failure 2; System Failure 3 - GE Giraffe Service Manual

Cause(s)
Defective control
board.

4.4.2 System Failure 1

System failure 1 indicates:
Cause(s)
The Timer2 circuit of the microprocessor on the control board is defective.

4.4.3 System Failure 2

System failure 2 indicates: Timer2 too fast.
Cause(s)
Defective scale.
Defective 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.

4.4.4 System Failure 3

System failure 3 indicates: During ADC calibration, the software detected a channel out of range.
Cause(s)
During system calibration, J1, J2, and J4 were not
unplugged, or calibration jumper JP1 is not installed
properly.
Defective circuit on control board.
© 2001 by Datex-Ohmeda, Inc.. All rights reserved.
Action(s)
Replace control board.
No Timer2.
Action(s)
Replace the control board.
Action(s)
Disconnect scale connector at probe panel. Power
cycle the unit. If the error clears, replace the scale.
Disconnect scale harness from J7 on the control
board. Power cycle the unit. If the error clears, replace
the scale harness.
Power cycle the unit. If system failure 8 appears, follow
the instructions for system failure 8 in section 4.4.8. If
system failure 2 persists, replace the control board.
Action(s)
Before calibrating, make sure J1, J2, and J4 on the
control board are disconnected. Verify JP1 is correctly
positioned. (Refer to section "3.3 System Calibration"
on page 21.)
Replace the control board.
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Chapter 4: Troubleshooting
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