1.3What is common interface? 5
13
SAT displaysthe satellite list.
14
mutesthe sound. Pressagain to switch it back on.
15
A/R changesaspect ratio. See§ 3.2.3 for more details.
16
switchesbetween television services and radio ser-
vices.
17
FAV displaysthe favourite lists.
18
isused to select a subtitle track.
19
isused to set a sleep timer.
20
P−
,
P+
buttons switch to previous or next service.
Theyare also used to navigate in menus and interactive
screens.
21
GUIDE displaysthe electronic programme guide.
22
displaysthe service information box. Itis also used to
displaymore information about a programme.
23
AUX
switches the output of the TV SCART socket be-
tween the digital receiver and the device connected to
theVCR SCART socket. See § 3.2.2 for more details.
1.3 What is common interface?Somebroadcasts are scrambled so that only paid
subscriberscan enjoy them. Scrambledservices
can only be viewed with a Conditional Access
Module(CAM) and a subscription card belong-
ingwith the scrambling system.
Common Interface (CI) is the slot on a digitial
receiverinto which a conditional access module
maybe insterted. Thefront of the digital receiver
hastwo common interfaces.
Towatch a pay service, you should take the following steps: