User's Manual

19" LCD MONITOR
REV A
23
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-colors LED
LED Display status
LED orange
No error, stand-by has been activated
LED green Video signal has been recognized, no error