Daktronics FB-2500 Series, Руководство по обслуживанию

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TNMCs & Electronic Captions
20
Troubleshooting
The table below lists potential problems with the display and indicates corrective actions.
This list does not include every symptom that may be encountered, but it does present
several of the most common situations that may occur.
Problem Solution/Items to Check
One or more LEDs on a single
module fails to light or turn off.
Check/replace the ribbon cables on the module.
Replace the module. See
Modules (p�25) .
A section of the display is not
working; section extends all the
way to the right side of the display.
Replace the first module/driver on the left side of the first
module that is not working. See Display Drivers (p�23) and
Modules (p�25) .
Replace the second module that is not working. See
Modules (p�25) .
Replace the power supply assembly on the first module that
is not working. See Power Supplies (p�26) .
Check/replace the ribbon cables running to the first
module that is not working.
One row of modules does not work
or is garbled.
Replace the first module. See Modules (p�25) .
Replace the display driver. See Display Drivers (p�23) .
A group of modules which shares
the same power supply assembly
fails to work.
Replace the power supply assembly. See Power Supplies
(p�26) .
Entire display fails to work.
Check for proper line voltage into the power termination
panel.
Check/replace the ribbon cable from the display driver to
the modules.
Check the voltage settings on the power supplies.
Check/replace the signal cable to the driver.
Replace the display driver. See
Display Drivers (p�23) .
Power & Signal Summary
Reference Drawings:
Schematic; OD, 3500 TNMC, 34mm, Red/Amb .............................................. DWG-783938
Schematic; OD, 3500 TNMC, 34mm, Wht ........................................................ DWG-906385
Schematic; OD, 3500, 46mm TNMC, Red/Amb .............................................. DWG-923941
Schematic; OD, 3500 TNMC, 46mm, Wht ...................................................... DWG-1036125
Schematic; OD, 3500 TNMC, 16x80 34mm, R/A/W ....................................... DWG-1092559
Wiring Detail; FB-2534 or 2541 for TNMC Type Options ................................. DWG-1092840
Refer to DWG-783938 , DWG-906385 , DWG-923941 , DWG-1036125 , or DWG-1092559 in
Appendix A for detailed schematics about display power and signal routing.
Note: 16x80-34mm TNMCs are capable of receiving power and signal directly via
terminal block in the cabinet. Refer to DWG-1092840 .