52 Firmware Update

To update the firmware with this method, perform the follow- ing steps:

1.Download a new firmware applicable to the digital receiver from the Topfield web site.

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 digital 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.

3.To start the file transfer, turn on the digital receiver.

4.When the file transfer is complete, the display panel on the digital receiver will count down to zero while the new firmware is being applied.

5.Restart the digital receiver.

7.3From another digital receiver via RS-232 port

It is possible to transfer a new firmware to the digital receiver from another same digital receiver by connecting them with a RS-232 cable.

To update the firmware with this method, perform the follow- ing steps:

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Topfield HV7700 HSCI manual From another digital receiver via RS-232 port