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90 Firmware Update
1. Download a new firmware applicable to
the digital receiver from the Topfield web
site.
2. Plug one end of a USB cable into the USB
port on the digital receiver, and the other
end into the matching port on your com-
puter.
3. Turn on the digital receiver.
4. Run TFDN USB.
The instruction on how to use TFDN USB is as follows:
1. Press the Find button to select the
new firmware file.
2. Press the Download button to start
the file transfer.
3. Press the Stop button to cancel the
file transfer.
4. Restart the digital receiver.
10.3 From your computer via RS-232 port
It is possible to transfer a new firmware to the digital receiver
from your computer connecting them with a RS-232 cable. You
need TFD-Down, the firmware transfer utility for this, which
is available at the Topfield web site, http://www.i-topfield.
com.
To update the firmware with this method, perform the follow-
ing steps: