LG LE1004 Use Manual page 23

Chapter 2 Functional description
7) [Auto sequential]
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8) [Logout]
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9) [System Log]
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10) [Relay out off(Alarm off)]
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2-6
(Single) -> Changes to single mode.
(Quad) -> Changes to quad mode.
Click button and each channel will be switched automatically.
This function does not work at quad screen.
You can set the switching interval at [Setup]  [System]  [Overview] 
[Auto- switching].
Use Lock menu to change user or lock system operation.
This shows the system log in DVR.
Click button to show the system log list.
You can see the log of previous date or next date by using ◀ / ▶ button.
You can see the previous or next log list by using ( - ) / ( + ) button.
Click "OK" button to close window.
When alarm (relay out) is on by event, you can stop the alarm with it.
Press button to stop alarm (relay out).
If next event occurs after alarm (relay out), the alarm will start again.