User manual
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5. TROUBLESHOOTING GUIDELINES
TROUBLE POSSIBLE CAUSE SUGGESTED
ACTION
Does not read or write. GSC300 is powered. Disconnect all connections
from the GSC300. Or find
Battery + and Battery –
connections and disconnect
those.
(USB Only) Does not
read or store and
Presto ON-LINE LED
is not lit.
Presto USB cable not plugged
into the computer.
USB drivers are not installed.
Plug USB cable into
computer. Ensure other end
of USB cable connected to
presto.
Go to the device manager
and locate “ASIX PRESTO
Programmer” under
“Universal Serial Bus
Controllers”. Right click on it
and select Update Driver or
similar. The drivers are
located in the directory you
installed the PC Interface to.
Message stating,
“value was left blank”.
Writing to the GSC300 with one
of the value boxes in the “GSC
CONTROL” left empty.
Enter an appropriate value.
Message stating that
values doesn’t make
sense.
Writing to the GSC300 with a
value that doesn’t make sense.
Ex.-Crank Disconnect value
larger than Over-speed.
Enter an appropriate value.
Message stating,
“Need to choose set
point”.
Writing to the GSC300 with
senders, but no set point
chosen.
Enter an appropriate set point
value.
Computer locks or
stalls during program
installation.
A conflict with another program
currently running on your
computer.
Attempting to use the parallel
buttons when programming
using USB
Exit all open applications,
close any open windows, and
disable any virus protection
software.
Use correct buttons for read
and store
Program Installation
does not start
automatically when CD
A problem with the auto-start
feature.
Double click the my computer
icon on your desktop, and
then double-click the