Grundig Venti series Instruction Manual page 24

Lock Channel: Once Lock Channel is set to on, you will be able to lock a specific channel from being viewed,
scanned or edited and can only be changed after a password has been entered.
Set Source: Once Set Source has been set to on the unit will be locked on the current source mode and a
password will need to be entered to change the TV source mode.
Channel Number: In either DTV or ATV mode only, you can select a channel number to be set as the TVs preset
channel. Press the ◄ or ► Buttons to select the desired channel number and it will be set as the preset
channel and automatically turn on when the TV is turned on.
Picture Lock: Once Picture Lock is set to ON the Picture settings will not be able to be adjusted without a valid
password.
Key Lock: When Key Lock mode is on, all buttons including the Standby Button on the side of unit will be
locked from operation.
Max Volume: This option allows you to set the Max Volume Level.
Source Lock: This option allows you to lock specific source modes from being used (refer to the image on the
next page). To set the Source Lock option, press the OK Button in the Hotel Lock Menu to enter the Source
Lock sub‐Menu. Then use the Navigation Buttons to scroll through the source options and highlight the modes
you would like to change. Press the ◄ or ► Buttons when a mode is highlighted to set the option as ON or
OFF. If the option is set as ON the mode will be lock from operation.
Please note: DTV and ATV modes can't both ON at the same time.
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