EN
| 14
Bosch Security Systems | 10 June 2004
LTC 2915/91, LTC 2917/91, & LTC 2919/90 |
Instruction Manual
|
Troubleshooting Guide
7 TROUBLESHOOTING GUIDE
Problem
Resolution
No Power Indicated -
The power plug may be loose or disconnected
Insert the power plug firmly into the socket
Power On, No Display -
(1) No video signal connected;
(2) Video cable is disconnected
(1) Select and push correct video input button;
(2) Check video cable for proper connection and correct accordingly
Power On, No Sound -
(1) Incorrect cable connection configuration;
(2) Audio cable is disconnected;
(3) Volume output is set too low
(1) Ensure that cable connection configuration is correct (see section 4.5);
(2) Connect audio cable firmly;
(3) Adjust speaker volume via
OSD
menu
Display Jitter -
The monitor may be close to a device generating a
strong magnetic field
Move the device away from the monitor until picture stabilizes
No Color, Incorrect Color, or Dark Color -
The picture control setting (e.g. Tint, Color, Brightness,
or Contrast) may be set improperly
Reset each picture control setting to the mid-range level, or restore the factory
DEFAULT setting in the
OSD
menu
Unnatural Color, Irregular Color, or Distorted Picture -
The monitor may be close to a speaker, magnet, or
another device generating a strong magnetic field
Move the device away from the monitor and discontinue power to the monitor,
wait at least 3 minutes, then restore power to the monitor
A Blank Display in Sequence Mode -
Upon power-up, the monitor memorizes the system
configuration (i.e., the number or video inputs
connected). If a video input is added after power-up,
that signal will NOT be displayed in sequence mode
Turn off the monitor for a few seconds, then power up again;
the additional signal should now be included in the
sequence
mode
