52 FirmwareUpdate
Toupdate the firmware with this method, perform the follow-
ingsteps:
1. Download a new firmware applicable to
thedigital receiver from the Topfield web
site.
2. Plug one end of a RS-232 cable (9 pin D-
sub cable) into the RS-232 port on the
digitalreceiver, and the other end into the
matchingport on your computer.
3. Turn on the digital receiver.
4. Run TFD-Down.
Theinstruction on how to use TFD-Down is as follows:
1. Press Find button to select the new
firmwarefile.
2. Press Download button to start the file
transfer.
3. PressStop button to cancel the file transfer.
4. Restart the digital receiver.
7.3 From another digital receiver via RS-232 port
Itis possible to transfer a new firmware to the digital receiver
fromanother same digital receiver connecting them with a RS-
232cable.
Toupdate the firmware with this method, perform the follow-
ingsteps: