LG 32LF73 Series Owner's Manual page 55

➋ CI+ CAM Authentication
When CI+ CAm (Conditional Access module) is inserted for the first time
Authentication Success
When the CI+ CAM is inserted
Authentication Failed
.
When the authentication is failed, an error message appears.
2.
Check whether
- The antenna is connected correctly.
- The channel search is complete.
- The current channel is digital.
3.
Remove the CI+ CAM and insert it again or turn the TV off and on.
The authentication will normally start.

for the first time

Audio/Video Display
Authentication Start

Authentication OK
GB-3