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Voltage is greater than 30-
VDC, then you must w
30-
VDC before you proceed with the next step.
Open the Power Supply Box cover. Place current clamp around one of the wires connected to the switch
labeled with switch marker PWR. Connect the current c
the input current. Current should measur
current level or current step.
Upon completing the measurement of the input current, remove current clamp and close
Box cover.
10.5 Checking
Power Supply
WARNING
Failure to turn off power to the sign and wait five minutes
in severe injury or death.
Turn off power to the sign. (
WARNING
the sign
. This will allow any residual high voltage
bleed off. )
With your multimeter set to DC Volts, v
than 30-VDC at TP6 (Positive l
ead) and TP3 (Negative Lead) as indicated in Figure 21.
Supply Output Voltage is greater than 30
Voltage drops below 30-
VDC before you proceed with the next step.
Remove the sign top c
over bolts and then lift the top cover
sign. Check the Power Supply
LED
connector is properly seated
in CN9
Supply LED
cable connector connect
seated in the input
connector housing
clearly marked with inward
pointing and outward pointing black arrows, respectively,
MODULE PCB (see Figure 7).
Instruction Manual
AGS-LED
858 LED Series
Sizes 1, 2, 3, 4 and 5
11
VDC, then you must w
ait until the Power Supply Output Voltage drops below
VDC before you proceed with the next step.
Open the Power Supply Box cover. Place current clamp around one of the wires connected to the switch
labeled with switch marker PWR. Connect the current c
lamp to the true RMS current meter. Measure
the input current. Current should measur
e between 2.7-ARMS and 6.7-
ARMS depending on the CCR
Upon completing the measurement of the input current, remove current clamp and close
Power Supply
LED Cable
WARNING:
Failure to turn off power to the sign and wait five minutes
in severe injury or death.
WARNING
: Wait five minutes after sign powe
r is turned off
. This will allow any residual high voltage
stored in Power Supply
PCB components to
With your multimeter set to DC Volts, v
erify that the Power Supply Output Voltage is less
ead) and TP3 (Negative Lead) as indicated in Figure 21.
Supply Output Voltage is greater than 30
-
VDC, then you must wait until the Power Supply Output
VDC before you proceed with the next step.
over bolts and then lift the top cover
from
the sign. Remove the front face from the
LED
Cable for visible damage. Make sure the
Power Supply
in CN9
at the Power Supply Board (see Figure 18).
Verify that
cable connector connect
s to the input connector of the first
LED MODULE
connector housing
. The LED MODULE input connector and the
output connector
pointing and outward pointing black arrows, respectively,
on the
DOCUMENT 1025
REV. B
ait until the Power Supply Output Voltage drops below
Open the Power Supply Box cover. Place current clamp around one of the wires connected to the switch
lamp to the true RMS current meter. Measure
ARMS depending on the CCR
Upon completing the measurement of the input current, remove current clamp and close
Power Supply
Failure to turn off power to the sign and wait five minutes
could result
r is turned off
to service
PCB components to
erify that the Power Supply Output Voltage is less
ead) and TP3 (Negative Lead) as indicated in Figure 21.
If the Power
VDC, then you must wait until the Power Supply Output
the sign. Remove the front face from the
Power Supply
LED cable
Verify that
the Power
LED MODULE
and is properly
output connector
are
on the
LED