Jwin JV-TV2040 User Manual
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The jWIN Security Camera has a built-in microphone that delivers high quality 
sound. You can adjust the sound from your monitor. 
To increase volume:
Turn the volume knob (found on the left side of
the unit) toward you.
To decrease volume:
Turn the volume know away from you.
 
 
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If you are using two cameras, you will want to adjust the timer to switch or cycle 
from one view to another every few seconds. 
 
The Time Control knob is located on the right side of the TV Monitor when you 
are facing the screen. When you look at the knob, you will see that it is marked
from 2 seconds to 20 seconds in increments. 
 
Use the knob to indicate when you want to switch 
views from one camera to another. 
 
To increase the time setting:
 
While facing the monitor screen turn the Time
Control knob away from you.
To decrease the time setting:
Turn the Time Control knob toward you.
Volume Control
Time Control