Part replacement
December 10, 2007
Front Access Full Matrix LED Sign Maintenance Manual (pn 1507610501 rev. A)
35
Power supply replacement
➩
To replace a power supply
1.
Open the sign. See “Opening a sign” on page 28.
2.
Turn the sign breaker to the OFF position.
3.
Remove the power panel cover by loosening the six screws and sliding the cover off.
4.
Remove all wires from the power supply to be replaced.
DC connections:
•
V+ (orange-colored wire)
•
V- (violet-colored wire)
•
Signal harness
AC connections:
•
Hot (black wire)
•
Neutral (white wire)
•
Ground (green wire)
Figure 29.
Power supply wiring
Note:
Power panel view may be reversed 180 degrees from the position above.
WARNING!
Hazardous voltage. Contact with high voltage may cause serious injury or death. Always
disconnect power to unit prior to servicing.