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Rotel of America
– 54 Concord St – North Reading, MA 01864 – Ph: 978-664-2870 – Fax: 978-664-4109
Troubleshooting
It is important when selecting the com port for updates and RS232
communication to be aware of what com port is being used on the PC for the
upgrade, whether it be a built in serial port on the PC, or a USB to serial adapter.
Selecting the incorrect com port in an update program or an RS232 terminal will
result in communication errors.
Additionally, if using a USB-to-Serial adapter, please verify that the drivers are the
latest available drivers for the device. Often there are newer drivers available on
the manufacturer’s website than the supplied CD-ROM. Old or incorrect drivers
may allow the adapter to display in Windows but can sometimes cause connection
issues.
If you do encounter an error, please refer below for the various error messages and
potential solutions.
“Communication port initial Error!” –
This error appears when selecting a
com port that does not exist on the PC, or when the com port is already in
use by another program.
o
Solution #1
:
Refer to the section “Confirming and Changing the COM
Port” for information on how to determine which com port the serial
port is on, and how to change it if necessary.
o
Solution #2
:
Close all other programs that are open that may be also
using the serial port.
“Failed the Device Initialization” –
This error appears when the com port
has been selected but the program is unable to connect to the Rotel unit
being updated.
o
Solution #1
:
Verify that the correct baud rate has been selected, and
that the unit is in the ON state when attempting the upgrade. Power
the unit off and then on via the back panel AC power switch, then
power the unit up via the front panel power button before
reattempting the update.
o
Solution #2
:
If solution #1 did not help, try a Factory Default on the
unit then attempt again. The Factory Default option is located on the
DEFAULT page of the Main Menu of the unit. Set this to ‘YES’ and
press Enter to reset the unit.
o
Solution #3
:
If using a USB-to-Serial adapter, please verify that the
drivers are the latest available drivers for the device. Often there are
newer drivers available on the manufacturer’s website than the
supplied CD-ROM. Old or incorrect drivers may allow the adapter to
display in Windows but can sometimes cause connection issues.
o
Solution #4
:
If the cable being used is not one supplied by Rotel it
would be advisable to obtain an upgrade cable from Rotel or an
authorized Rotel dealer. An incorrect or fault pin configuration on the
RJ45 to DB9 upgrade cable can result in this error.