You need to turn on the 9 volt out put to the RF out socket so it can power the eye.
You will need to access the service menu and turn it on in there
Try Google, the instruction to do this shouldn't be to hard to find.
Hope this helps
Rich
edit
Try This
Step 1
[font=Arial, sans-serif]Turn your digibox off at the main power supply.[/font]
Step 2
[font=Arial, sans-serif]Run your cable from the back of your digibox to the second TV using the appropriate connectors.[/font]
Step 3
[font=Arial, sans-serif]Plug the Magic Eye (TV Link) onto the end of the cable and then into the RF input on the back of your TV.[/font]
Step 4
Plug the cable into RF 2 on the back of your digibox and switch the digibox back on, then look to see if the red light has illuminated on the Magic Eye (TV Link), if it has then all you need to do now is tune your second TV to the appropriate channel. If however the light did not come on then please continue with the following steps.
Step 5
[font=Arial, sans-serif]Press services on your Sky remote control.[/font]
Step 6
[font=Arial, sans-serif]Select "System Setup" (Number 4).[/font]
Step 7
[font=Arial, sans-serif]Press 0, then 1, then select on your Sky remote control.[/font]
Step 8
[font=Arial, sans-serif]Select "RF Outlets" (Number 4).[/font]
Step 9
[font=Arial, sans-serif]Turn the "RF Outlet Power Supply" on by pressing the green right arrow key on your remote control, then go down to "Save New Settings". The little red light should now be on and it should be working OK.[/font]
[font=Arial, sans-serif]Note![/font]
[font=Arial, sans-serif]Should the red light not illuminate once the steps above have been completed, please check that a 'short' hasn't been created, this can be caused by having the inner and outer cores touching at the connector ends.[/font]