Lorex LH158 Instruction Manual page 147

Troubleshooting (Continued)
Error
• There is no picture • Monitor/TV not detected by DVR • Power off the monitor/TV and DVR. Power on the
on monitor/TV after
connecting it to the
DVR
• Input channel for DVR not
selected on monitor/TV
• Video cable is loose or has
become disconnected
• Video-out resolution has been
set to the incorrect setting
• Mouse not detected • Mouse cable is not firmly
by system connected to the system
• Mouse is not connected to the
system
• System needs to be reset
• There is no picture • Camera cables are loose or
on selected channels have become disconnected
/ camera picture is
not being displayed
• The image on the • Audio cables are loose or have
DVR appears, but been disconnected
does not have sound
• Volume on external speakers
(not included) is low or off
• The system beeps
at startup
• The system beeps • Motion detection is enabled and
during motion the alarm buzzer is activated
detection
• I am not receiving • Email notification is disabled
email notifications
• Default setting is disabled, but
you have not entered your own
SMTP information
Possible Causes Solutions
monitor/TV, and then power on the DVR
• On the monitor/TV, select the input channel the DVR is
connected to
• Check the video cable connection to the DVR and
monitor/TV

• 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)
• Firmly connect the mouse cable to one of the USB
ports
• Power off the system (disconnect power cable). Firmly
connect a USB mouse to one of the USB ports.
Reconnect the power cable to the DC 12V port on the
rear panel.
• 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
• Check the AUDIO Input connections to the DVR
• Increase volume on external speakers (not included)
• The beep at startup is normal
• Open the Main Menu and click System>Motion. In the
Buzzer drop-down, select Off. Click Apply
• Ensure you have configured email notification. For
details, see "Setting up Email Notification" on page 47
• 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
Troubleshooting
131