Topfield High Defninition Digital Satellite Receiver HV7700 HSCI - Manual (Page 59)

7.3 From another digital receiver via RS-232 port 53
1. Turn off the target digital receiver.
2. Plug one end of a RS-232 cable (9 pin D-
sub cable) into the RS-232 port on the
digital receiver, and the other end into
the matching port on the other digital re-
ceiver.
3. If not already on, turn on the source digi-
tal receiver.
4. Select the Installation > Transfer Firmware
> Transfer Firmware to Other IRD menu.
5. To start the file transfer, turn on the target
digital receiver.
6. When the file transfer is complete, the
display panel on the digital receiver
will count down to zero while the new
firmware is begin applied.