Troubleshooting - LG LCCM019-GN Owner's Manual

5.3 Troubleshooting

Problem
Panel is complete
dead
One or more
panels displays
video incorrectly or
does not display
video at all
All panels and/or
monitor screen
display video
incorrectly or do
not display video at
all
Display cuts
out
intermittently
One LED
module cuts out
Probable cause(s)
No power to panel
Fuse blown
Defective PSU
Incorrect panel settings on
control system
Panel defective
Other device on Control
system defective
Incorrect video input or
panel settings on Control
System
Unusable video signal or
defective video source
Fault on Control System
Device on Control System
defective
Panel is too hot
Fault on the control
systems
LED module incorrectly
installed and connected.
LED module faulty
36
Remedy
Check power and connections
Disconnect panel from power.
Contact LGE professional for
service.
Disconnect panel from power.
Contact LGE professional for
service.
Check settings (display
configuration, panel device,
properties, etc.)
Have faulty panel service by LGE
service technician
Replace with a device known to
be operating correctly. Have
fault device tested and serviced
Check settings (PAL/SECAM/NTSC
selection, overall panel intensity
setting, etc.)
Check video source
Inspect connections and cables.
Correct poor connections. Repair
or replace damaged cables
Have faulty device tested and
serviced by LGE service technician or
supplier.
Ensure free air flow around spine.
Clean spine. Check that ambient
temperature does not exceed max.
permitted level. Contact LGE for
service
Inspect connections and cables.
Correct poor connections. Repair
or replace damaged cables
Check module. Replace LED module.