Welch Allyn 53000 Service Manual page 38

34 Troubleshooting and repair
Symptom
Repeated C07 error code.
Repeated C20 temperature
error code.
Error code E30
Error code E31
Error code E32
Error code E33
Error code E34
Error code E35
Error code E36
Error code E37
Error code E38
Error code E40
Error code E41
Error code E44
Possible cause
Incompatible SpO sensor.
2
Improperly connected SpO sensor.
2
Faulty SpO sensor.
2
Faulty SpO board.
2
Probe well is not installed in the
probe-well housing.
Faulty probe.
Faulty temperature board.
PROM is corrupt.
RAM test failure.
Factory data failure.
User data error.
A/D converter failure.
SpO module failure.
2
Faulty probe.
Temperature module failure.
Printer failure.
Error E38 always occurs when the
monitor is first powered after a
battery has been connected.
Real-time clock failure.
NIBP module failure.
NIBP module failure.
POST queue full.
Welch Allyn VSM 300 Series
Suggested action
Use a compatible sensor.
Properly connect the sensor cable.
Replace the sensor.
Replace the SpO board.
2
Install the probe well in the probe-well housing.
Replace the probe.
Replace the temperature board. For details, see
order number 21327-1000 in "Temperature option"
on page 92.
Return the monitor to an authorized service center
for PROM programming.
Cycle the power. If the error persists, return the
monitor to an authorized service center for
replacement of the main board.
Return the monitor to an authorized service center
for replacement of the main board.
Cycle the power to reset all user settings to default
values.
Cycle the power. If the error persists, return the
monitor to an authorized service center for
replacement of the main board.
Verify all cable connections, and then cycle the
power. If the error persists, replace the SpO
board. Use the service utility to verify compatibility.
Replace the temperature probe with a known
good probe.
Verify all cable connections, and then cycle the
power. If the error persists, replace the
temperature board, Use the service utility to verify
compatibility.
Verify all cable connections, and then cycle the
power. If the error persists, replace the printer
module. Verify that the paper guide and sensor are
properly attached to the printer chassis.
Cycle the power, and then reset the date and time.
Cycle the power. If the error persists, return the
monitor to an authorized service center for
replacement of the main board.
Characterize NIBP. (See "NIBP
characterization" on page 36.) If the error
persists, return the monitor to Welch Allyn for
service/
Verify all cable connections, and then cycle the
power. If the error persists, replace the NIBP
module.
Warning: Always characterize NIBP after
replacing any NIBP component. (See
characterization" on page 36.)
Cycle the power. If the error persists, return the
monitor to an authorized service center for
replacement of the main board.
2
"NIBP