Topfield TF 7720 HSCI - Manual (Page 60)

54 Firmware Update
7.3 From your computer via RS-232 port
It is possible to transfer a new firmware to the digital receiver
from your computer by connecting them with a RS-232 cable.
You need TFD-Down, a firmware transfer utility for this, which
is available from the website, http://www.i-topfield.com .
To update the firmware with this method, perform the follow-
ing steps:
1. Download a new firmware applicable to
your digital receiver from the Topfield
website.
2. Turn off the digital receiver.
3. Plug one end of a RS-232 cable (9 pin D-
sub cable) into the RS-232 port on the dig-
ital receiver, and the other end into the
matching port on your computer.
4. Run TFD-Down.
The instructions on how to use TFD-Down are as follows:
1. Press the Find button to select the new
firmware file.
2. Press the download button, and then turn
on the digital receiver to start the file trans-
fer.
3. A countdown will be displayed on screen
4. Restart the digital receiver when the file
transfer is complete.