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5
LED
DRIVER BOARD REPLACEMENT
LED driver board replacement
■
Hazardous voltage. Contact with high voltage may cause death or serious injury.
WARNING
Always disconnect power to unit prior to service.
Remove the LED driver board
1.
Remove power from the sign. Note there may be more than one power source present.
2.
Open the sign. See "Opening a sign" on page 5-1.
3.
Turn the sign breaker to the OFF position. Note there may be more than one breaker in a sign.
4.
Remove the driver assembly screws on the defective driver assembly.
5.
Disconnect the cables from the power interface board.
Note:
6.
Remove the driver assembly and align the new driver assembly:
•
Make sure the new driver assembly has the same orientation as the original one.
•
Leave enough room to connect the cables in the next step.
Install the replacement LED driver board
1.
Connect the cables to the power interface board.
Note:
2.
Push in the driver assembly until it is fully seated.
3.
Close the sign.
4.
Return power to the sign.
5-12
A
X
LPHA
PRESS
Disconnect the cables in the order shown or damage to sign components may result.
Connect the cables in the order shown or damage to sign components may result.
2020 RGB F
A
F
-M
RONT
CCESS
ULL
D
S
O
ATRIX
ISPLAYS
IGN
PERATION AND
M
M
(PN 1523610201
AINTENANCE
ANUAL
. B)
REV
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