46
Troubleshooting Table Advanced
™
Osmometer 3250/Cryoscope 4250 Service Manual
Symptom Explanation Suggested Action
31. No Results to Recall Recall memory was empty.
1. Run a test and try again.
2. If problem persists, reboot and
check for Low Battery message.
3. Contact Advanced Instruments for
Hot- Line Service.
32. “Out of Range” The sample tested was beyond the
range of the instrument.
Dilute the sample and retest.
33. Printer advances
paper and appears to
be printing, but the
paper is blank.
Paper has been installed backwards. Check to make sure the paper roll
is properly installed. The paper
must feed from the bot tom of the
roll. Refer to the User’s Guide for
additional information.
34. Printer fails to print. Printer may be out of paper.
Paper feed mechanism may be
jammed. Printer may have failed.
Serial Suffix D and higher: Printer
cover may not be fully closed.
Check paper. If out, install new
paper.
Press FEED key while observing
printer paper feed mechanism.
If either slow or no paper feed is
occurring, replace printer.
Serial Suffix D and higher: Make sure
that printer cover is fully closed. On
some models, check diagnostic LEDs
D19 and D20 on PCB605.
35. “RAM Failure” The main board has failed. Replace the processor board.
36. “Recalibration
Needed”
The calibration data has been lost
from memory. This is caused by:
• battery back-up failure
• installation of a new processor
board
• corruption of system memory
• new probe bin numbers
1. Recalibrate the instrument.
2. If error message persists after
successful calibration, replace the
processor board.
37. “Reset Probe
Configuration”
The probe bin data has been lost
from memory. This is caused by:
• battery back-up failure,
• installation of a new processor
board,
• corruption of system memory, or
• new software/firmware.
3. Reset sample and block probe bin
numbers.
4. If problem persists, replace
processor board.
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