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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 blinking
No error, stand-by has been activated
LED green
Video signal has been recognized, no error
