Service manual

PN 4237242C
7.4-3
TROUBLESHOOTING
TROUBLESHOOTING ERROR MESSAGES
7
Power Supply Failure
015 The +24 V function checks the state of two latches. One latch is tied to the
POWERFAIL signal from the +24 V power supply, and the other is controlled
by the Overload Timer circuit on the Motor/Solenoid Driver card. If these
latches are set at any time after the last +24 V check, the current +24 V check
generates an
ERROR DETECTED (015) Power Supply Failure
error message.
For more information about these circuits, see Motor/Solenoid Driver Card
under Heading 2.4, SYSTEM CONTROL.
Probe Mechanism Failure
Probe mechanism movement is controlled by the mechanism stopping at a
sensors. There are five sensors, one at each of the three horizontal positions,
one at the top vertical position and one at the bottom of the vertical position.
Diluter tables send the probe 40 steps more than necessary for horizontal
movement and 15 steps more than necessary for vertical movement. The
probe must travel within 110 steps of its destination or an error is generated.
This description applies to all the Probe Mechanism error codes.
030 When the software is informed that the movement is completed, it checks the
sensor state. If the probe is not at the
upper position sensor
, or the step
count is too low,
ERROR DETECTED (030) Probe Mechanism Failure
is
displayed on the screen.
Note: See initial description for more information.
031 When the software is informed that the movement is completed, it checks the
sensor state. If the probe is not at the
lower position sensor
, or the step count
is too low,
ERROR DETECTED (031) Probe Mechanism Failure
is displayed on
the screen.
Note: See initial description for more information.
032 When the software is informed that the movement is completed, it checks the
sensor state. If the probe is not at the
sensor over the WBC bath
, or the step
count is too low,
ERROR DETECTED (032) Probe Mechanism Failure
is
displayed on the screen.
Note: See initial description for more information.
033 When the software is informed that the movement is completed, it checks the
sensor state. If the probe is not at the
sensor over the RBC bath
, or the step
count is too low,
ERROR DETECTED (033) Probe Mechanism Failure
is
displayed on the screen.
Note: See initial description for more information.
034 When the software is informed that the movement is completed, it checks the
sensor state. If the probe is not at the
sensor in the aspirate position
, or the
step count is too low,
ERROR DETECTED (034) Probe Mechanism Failure
is
displayed on the screen.
Note: See initial description for more information.
Table 7.4-1 Error Messages
(Continued)
Error Message Code Description/Possible Fault