Troubleshooting - BIO RAD TC20 Instruction Manual

Troubleshooting

Error Message
Invalid result data
Invalid dilution
Incorrect slide, remove slide.
Insert verification slide,
side A first, press Enter
File write error
Press Home key to continue
No disk found
Disk is full
No firmware update file present,
press Home key to exit
Please repeat the test with
a clean slide
Slide removed during focusing.
Reinsert slide to continue or
press Home to exit
Connect the printer
No labels in the printer
Current count value out
of range
Exposure time too high
Printer error
Filename invalid
Store results failed
Hardware errors (stepper motor
error, bright field LED/CMOS not
working, SPI communication not
working, vinculum communication
error, CPLD, FPGA)
Possible Cause and Solution
Data were improperly stored and cannot be retrieved.
The value entered for the desired cell concentration is higher than
the starting cell concentration. Ensure that the value of the desired
cell concentration is not higher than the starting cell concentration.
The counting slide is used instead of the verification
slide during system validation. Insert side A of the verification
slide, and press Enter.
1. Check USB flash drive. If it is close to full, then empty it.
2. If "File write error" is displayed after step 1, then reformat
flash drive in FAT32 format.
3. If "File write error" is displayed after step 1 and step 2,
then use different flash drive.
The USB flash drive does not contain the updated firmware file
or the file is saved outside of root directory of UBS flash drive.
Insert a USB flash drive that contains the updated firmware file
in the root directory.
Failure of system test. Repeat the verification without the verification
slide. If the problem persists, contact Bio-Rad Technical Support
team (see Bio-Rad Laboratories Resources for details).
The slide is removed during counting. If the slide is removed during
focusing, counting is interrupted. Once the slide is reinserted,
the count starts automatically.
The thermal label printer is not connected to the instrument.
Connect the printer to the instrument via the USB port A or B.
There are no labels in the thermal label printer. Insert labels into
the printer.
The number of cells is above or below specification.
View the cell image and dilute or concentrate your sample.
Repeat the count.
Slide is too dark; remove it and use a clean counting slide.
Bad statuts code returned for the printer. Check USB cable
connecting to the printer. Turn the printer off, then turn it back on.
Bad sample name entered. Re-enter a valid sample name.
Previous count data storage failed. FLASH memory currupted.
Export any good previous counts, then delete all counts
(reformat FLASH).
Restart the instrument; if the error is displayed again, contact
Bio-Rad technical support team (see Bio-Rad Laboratories
Resources for details).
Maintenance and Troubleshooting
27