Sharp Aquos LC-57D90U Operation Manual page 25

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Basic adjustment settings
Cable Reception
• This menu provides useful technical information for when
the CableCARD security module is installed by cable
service personnel. The following information may vary
depending on your cable service provider.
Press MENU and the MENU screen displays.
Press
~/~
to select "Setup".
Press
./T
to select "Antenna Setup -
DIGITAL", and then press ENTER.
• If you already set the Secret No., input the 4-
digit secret number here. See page 54 for
setting a secret number.
Press
./T
to select "Cable Reception".
• Technical information displays.
Press MENU to exit.
FAT (Forward
Applications Transport)
information:
• FAT denotes a TV program channel that your digital cable
service provides. Digital cable reception information such
as signal lock status and frequency is provided.
Status: When the TV is tuned to a program channel, it shows
"LOCK". Otherwise "UNLOCK" is displayed.
Modulation: Shows modulation system of the digital cable service
either in 64QAM or in 256QAM.
Frequency: Shows the signal frequency.
Strength: Shows the strength of the reception signal. The
strength value varies from 0 to 99. To enjoy a clear
picture without noise, the value should exceed 60.
FDC (Forward Data Channel) information:
• FDC denotes a data channel for CableCARD security
module operation. When the CableCARD security module
is inserted, data channel reception information such as
signal lock status and frequency is displayed.
Status: When the TV is tuned to a data channel, it shows
"LOCK". Otherwise "UNLOCK" is displayed.
Rate: Shows the data channel transmission rate.
Frequency: Shows the data channel frequency.
Strength: Shows the strength of the reception signal. The
strength value varies from 0 to 99. To ensure stable
operation, the value should exceed 60.