User's Manual

19" LCD MONITOR
REV A
22
7. Fault diagnostics
Fault Cause Remedy
Broken fuse Inform servicing department No picture appears on
the display, operation
LED off
Power cable not inserted
or incorrectly inserted
Insert power cable
No video signal Check video cable
No picture appears on
the display, operation
LED green blinking
Video source not
supplying a signal
Check video source
Fuzzy picture,
interference in
vertical lines
Scanning frequency or
phase incorrectly set
Adjust frequency and phase
Loose plugs Plug cables in properly and
secure them
Other faults –LED
orange blinking
Faulty cable Replace cable
Other faults: “Temp.
High” on screen
Temperature shutdown
value has been reached
Display will be automatically
shut down after a certain time
(and turn on again when the
temperature decreases enough
again)
Other information available from the 2-monochromes LED
LED Display status
LED orange
No error, stand-by has been activated
LED green Video signal has been recognized, no error