Lorex Technology LH130 사용자 설명서

116

Troubleshooting

• There is no picture 
on monitor/TV after 
connecting it to the 
DVR

• Monitor/TV not detected by DVR

• Power off the monitor/TV and DVR. Power on the 
monitor/TV, and then power on the DVR

• Input channel for DVR not 
selected on monitor/TV

• On the monitor/TV, select the input channel the DVR is 
connected to

• Video cable is loose or has 
become disconnected

• Check the video cable connection to the DVR and 
monitor/TV

• Video-out resolution has been 
set to the incorrect setting

• Press and hold the 



 button on the front panel of the 

DVR until the DVR restarts. The DVR will reset to the 
default resolution (1024x768)

• Mouse not detected 
by system

• Mouse cable is not firmly 
connected to the system

• Firmly connect the mouse cable to the USB Mouse 
port on the front panel

• Mouse is not connected to the 
system

• System needs to be reset

• Power off the system (disconnect power cable). Firmly 
connect a USB mouse to the USB Mouse port on the 
front panel of the system. Reconnect the power cable to 
the DC 12V port on the rear panel.

• There is no picture 
on selected channels 
/ camera picture is 
not being displayed

• Camera cables are loose or 
have become disconnected

• Check the camera video cable and connections 
• Disconnect and reconnect the cable at the system and 
at the camera
• Try moving the camera to another channel or use 
another cable

• The image on the 
DVR appears, but 
does not have sound

• Audio cables are loose or have 
been disconnected

• Check the AUDIO Input connections to the DVR

• Volume on external speakers 
(not included) is low or off

• Increase volume on external speakers (not included)

• The system beeps 
at startup

• The beep at startup is normal

• The system beeps 
during motion 
detection

• Motion detection is enabled and 
the alarm buzzer is activated

• Open the Main Menu and click System>Motion. In the 
Buzzer drop-down, select Off. Click pply

• I am not receiving 
email notifications

• Email notification is disabled

• Ensure you have configured email notification. For 
details, see “Setting up Email Notification” on page 42

• Default setting is disabled, but 
you have not entered your own 
SMTP information

• If you want to use your own SMTP server, deselect the 
Default box, and enter your SMTP Server address, Port, 
User name, and Password in the respective fields