Service manual

PN 4237242C
7.4-5
TROUBLESHOOTING
TROUBLESHOOTING ERROR MESSAGES
7
Unable to Create INF File
Non-fatal
Error
Unable to Create INF File
is displayed on the screen when the system attempts
to create an INF file and cannot. This message does not stop the system or the
report for the sample being analyzed. It is merely a message for the user's
information.
Creation of the INF file occurs only if SW1-2 of the URA card is ON. This
should only be turned ON if there is a hard drive present for INF files to be
stored on. With no hard drive, INF files are stored to a Virtual RAM drive.
Available memory runs out in about 10 samples and
Unable to Create INF File
is generated.
Another reason INF files are not created is that the system date or time is
earlier than the date or time recorded on the last INF file.
Unable to Create INF
File
is displayed on the screen, allowing you to continue running with no
adverse effects.
Unable to Sense Diluent Level
017 During power up, the diluent reservoir is checked for fluid and for sensor
integrity. The reservoir is drained and overfilled. If the instrument cannot
sense a lack of diluent when drained or the presence of diluent when
overfilled,
ERROR DETECTED (017) Unable to Sense Diluent Level
is
displayed on the screen.
URA Board Failure
002 Currently, this error is not used by the system.
This error is not called by the software, but its code is in the list of error
messages used when an error occurs. If the message is displayed on the
screen, program execution has lost its way and the error should be treated as
a
Software Fatal Error
.
008 This error indicates that the software detected a failure of the Analog
Multiplexer circuit on the URA card. The system selects a multiplexer channel,
then the multiplexer is read to see if the channel is selected. If the channel is
not selected,
ERROR DETECTED (008) URA Board Failure
is displayed on the
screen.
009 The system software uses a timer when it gives a conversion task to the A/D
converter on the URA card. If the conversion does not complete in the allotted
time,
ERROR DETECTED (009) URA Board Failure
is displayed on the screen.
This A/D converter is used for only one task in the MD II, the DVM check. Any
problem would have to be on the URA card itself.
URA CMOS Failure
011
ERROR DETECTED (011) URA CMOS Failure
is displayed on the screen when
the CMOS image is altered after power up. This error is displayed on the
screen whenever the CMOS data is not correct. The power-up routines correct
the CMOS image or generates an
ERROR DETECTED (012) System Disk File
Corrupt
error message if a correction could not be made.
Vacuum Out of Range
Non-fatal
Error
The system count vacuum is recorded during each of the 12 count periods. If
one of these readings is outside of the 5.83 - 6.17 in. Hg limits,
Vacuum Out
of Range
is displayed on the screen.
Table 7.4-1 Error Messages (Continued)
Error Message Code Description/Possible Fault