Chapter 5: Troubleshooting
Troubleshooting Symptoms
Service Manual 5-7
S29 Device will not power up, alarm
sounds.
Defective scale Disconnect scale connector at
probe panel. Power cycle the
device. If error clears replace
the scale.
Defective scale harness Disconnect scale harness from
J7 on the control board. Power
cycle the device. If error clears
replace the scale harness.
Defective Servo Oxygen
board
Disconnect the RS485 harness
from J8 on the Servo Oxygen
board. Power cycle the device.
If the error clears, replace the
Servo Oxygen Board.
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 Remove the electrical
enclosure cover and
disconnect the PF Battery.
Power down and power up
again. If the device powers up,
replace the 9V PF Battery
(66600-1024-600).
Defective power supply Check power supply voltages.
Refer to the Tips section (5.2.4).
Defective power harness
to SBC
Verify power supply voltages at
J17 on SBC.
•+5V 1-2
•+12V 1-3
•+5STBY 1-4
Defective SBC Disconnect ribbon cable from
J6 on control board. Power up
device. Giraffe logo should
appear on display. After about
70 seconds the audible alarm
sounds. If the logo does not
appear replace the SBC.
Defective control board Replace control board.
S30 Patient Hot or patient Cold
alarms activated while device
is in Manual Mode.
MANUAL TEMP alarm is
selected on the operator
Setup screen.
Select OFF for MANUAL TEMP
alarm on Setup screen.
ID Symptom Possible Cause(s) Action(s)
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