System Failure 37; System Failure 38; System Failure 50; System Failure 51 - GE Giraffe OmniBed Service Manual

Cause(s)
Defective relay board.
Defective control board.

4.4.31 System Failure 37

System failure 37 indicates: Defective Switches (software 1.60 or higher).
Cause(s)
Both canopy up and canopy down
position switches are closed.

4.4.32 System Failure 38

System failure 38 indicates: Software has detected that door switches show that heater doors are both open
and closed (which is not physically possible).
Cause(s)
Defective switches or
harness

4.4.33 System Failure 50

System failure 50 indicates: Incorrect display driver board System Software checksum.
Cause(s)
Defective System Software PROM on display driver board. Install new system software 6600-0234-850.
Defective display driver board.

4.4.34 System Failure 51

System failure 51 indicates: Display Defective SRAM.
Cause(s)
Defective SRAM circuit on the display driver board
© 2001 by Datex-Ohmeda, Inc.. All rights reserved.
Action(s)
Use the service screen to determine which switches are on. Use an ohmeter to
test the switches and cabling. Refer to the Tips section (4.6.5).
Action(s)
Use the SERVICE SCREEN to determine which switches are on. Use an ohmeter to test the
switches and cabling. Refer to the Tips section (4.6.5).
Action(s)
Measure the voltages at the relay board:
• J37 pin 48-45 and J37 pin 49-45.
• If mains voltage 100/115 = 3-5 volts, difference
within 0.4 volts.
• If mains voltage 230 = 7-10 volts, difference within
0.8.
• If not, replace the relay board.
If the voltages are OK, replace the control board.
Action(s)
If the system failure persists, replace display driver board.
Action(s)
Replace the display driver board.
6600-0343-000 104
Chapter 4: Troubleshooting
53