ABI Prism® 7900HT Sequence Detection System ... - OpenWetWare

7-8 System Maintenance
To replace the sample block: (continued)
Step Action
7 If using a plate handler, replace the covers for the fixed-position bar code reader
and the underlying platform (removed in step 6 on page 7-5).
8 Plug in and turn on the 7900HT instrument.
9 Confirm the function of the installed sample block module as follows:
a. Launch the Automation Controller Software.
b. Click the Thermal Status tab.
Does the software
display temperatures? Then…
Yes the installation is successful.
10 Once the sample block is loaded into the instrument do the following:
a. Perform a background run (see page 7-13) to verify that the sample block:
– Is connected and working properly
– Contains no contaminants that will interfere with fluorescent detection
b. If changing sample block formats, perform any remaining tasks outlined in the
“Sample Block Installation Checklist” on page 7-4.
GR2009
Fixed-position bar code reader
and underlying platform covers
The presence of temperature readings confirm that
the 7900HT instrument successfully established the
connection to the new sample block.
No the 7900HT instrument is unable to establish
communication with the new sample block.
To troubleshoot the problem:
a. Turn off and unplug the 7900HT instrument.
b. Remove the thermal cycler access cover.
c. Press on the right and left sides of the front plate
of the sample block to ensure that it is seated
securely.
d. Reinstall the thermal cycler access cover.
e. Repeat step 8 until you hear a high-pitched tone
confirming communication between the
instrument and sample block.