Service manual

PN 4237242C
7.4-1
TROUBLESHOOTING
TROUBLESHOOTING ERROR MESSAGES
7
7.4 TROUBLESHOOTING ERROR MESSAGES
Table 7.4-1 Error Messages
Error Message Code Description/Possible Fault
Aspirate Syringe Failure
026 When the syringe is sent to the home position, it stops on sensor. To make
sure it gets to the sensor, it is allowed 40 extra steps. This means that if the
motor is sent down a total of 3000 steps, it is sent up 3040 steps. The sensor
is checked when enough time elapses to complete travel, and if it does not
sense the flag,
ERROR DETECTED (026) Aspirate Syringe Failure
is displayed
on the screen.
027 A check of the sensor state is made after every downward movement of the
syringe. If the syringe is sensed in the top position,
ERROR DETECTED (027)
Aspirate Syringe Failure
is displayed on the screen.
Copy Protection Violation
018 The hardware for an 8/10 parameter instrument and a 16/18 parameter
instrument are different. If you power up an 8/10 parameter instrument with
16/18 parameter software, the software reverts to the instrument's software
(8/10 parameter).
If you attempt to use resource files from a 16/18 parameter instrument, on an
8/10 parameter instrument, after power up,
ERROR DETECTED (018) Copy
Protection Violation
is displayed on the screen.
If this occurs, the files from different instrument type Program Disks were
mixed or a Program Disk from a different instrument type was used after
initial power up.
Count Period Timeout
020 The MD II Series accumulates 12 seconds of count and histogram data for
analysis, collected in 1-second increments. The DMA process used to
channelize histogram data controls the time, but a separate software timer is
used to double check it. If data accumulation is still taking place after 1.2
seconds,
ERROR DETECTED (020) Count Period Timeout
is displayed on the
screen. The DMA transfer is between the SPAD card and the motherboard.
CPU Fatal Error
013 The CPU on the AT motherboard signals the user software that it has detected
a processor fault, such as an illegal processor instruction or a divide by zero
request. When any error signal is received from the processor,
ERROR
DETECTED (013) CPU Fatal Error
is displayed on the screen.
This is usually a motherboard problem. However, if the software requests the
CPU to divide by zero, the software is at fault.
Diluent Syringe Failure
028 When the syringe is sent to the home position, it stops on sensor. To make
sure it gets to the sensor, it is allowed 40 extra steps. This means that if the
motor is sent down a total of 3000 steps, it is sent up 3040 steps. The sensor
checks when enough time elapses to complete travel, and if it does not sense
the flag,
ERROR DETECTED (028) Diluent Syringe Failure
is displayed on the
screen.
029 A check of the sensor state is made after every downward movement of the
syringe. If the syringe is sensed in the top position,
ERROR DETECTED (029)
Diluent Syringe Failure
is displayed on the screen.
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