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or stays lit, then the second
LED MODULE
LED MODULE
are operating normally.
Turn off main power to the sign. Wait five minutes for the high voltage to dissipate.
output voltage is less than 30-
VDC with a multimeter as described in the opening paragraph of this
section. Replace the
black return cable connector
Replace the
black return cable connector
If the sig
n does not light at all, then
the output connector of
LED MODULE
repeat the test outlined above in
this
10.9 Continue C
hecking the
It is assumed that the first two
LED MODULES
two sections.
For signs with more than two
MODULES one at a time and in
numerical
MODULE #
Last). Use the same method as we have outlined in
For example, suppose
we have a sign with 6 LED
have checked all the
LED MODULES
lit. Then we would use the following procedure to test the
WARNING
Failure to turn off power to the sign and wait five minutes
in severe injury or death.
Turn off power to the sign by turning off the corresponding Constant Current Regulator (CCR) power.
(WARNING: W
ait five minutes after sign power is turned off
any residual high voltage
stored in Power Supply
multimeter set to DC Volts, verify that the Power Supply Output Voltage is less than 30
(Positive lead) and TP3 (Negative Lead) as indicated in Figure 22. If the Power S
is greater than 30-
VDC, then you must wait until the Power Supply Output Voltage drops below 30
before you proceed with the next step.
Remove the
black return cable connector
20
). Replace the output cable connector in the
Instruction Manual
AGS-LED
858 LED Series
Sizes 1, 2, 3, 4 and 5
14
LED MODULE
and the cable from the first
LED MODULE
are operating normally.
Turn off main power to the sign. Wait five minutes for the high voltage to dissipate.
VDC with a multimeter as described in the opening paragraph of this
black return cable connector
with the first LED MODULE
output cable connector.
black return cable connector
in the output connector housing of the las
t LED MODULE.
n does not light at all, then
replace the second LED MODULE
and/or the cable connecting from
LED MODULE
#1 to the input of LED MODULE #2
(see Section 10.
this
section.
hecking the
Rest of the LED MODULES
LED MODULES
have been checked successfully as described in
For signs with more than two
LED MODULES, continue checking
the remaining
numerical
sequence (e.g. LED MODULE #3,
LED MODULE
Last). Use the same method as we have outlined in
previous section.
we have a sign with 6 LED
MODULES (See Size 2, 2-
Modules, Figure 9)
LED MODULES
in sequence from 1 to from 4
and found that the sign momentarily
lit. Then we would use the following procedure to test the
5th LED MODULE.
WARNING:
Failure to turn off power to the sign and wait five minutes
in severe injury or death.
Turn off power to the sign by turning off the corresponding Constant Current Regulator (CCR) power.
ait five minutes after sign power is turned off
to service the sign
. This will allow
stored in Power Supply
PCB components to bleed off
.) With your
multimeter set to DC Volts, verify that the Power Supply Output Voltage is less than 30
(Positive lead) and TP3 (Negative Lead) as indicated in Figure 22. If the Power S
upply Output Voltage
VDC, then you must wait until the Power Supply Output Voltage drops below 30
before you proceed with the next step.
black return cable connector
from the 6th LED MODULE
output cable connector (see Fig
). Replace the output cable connector in the
LED MODULE #5 with the
black return cable connector
DOCUMENT 1025
REV. B
LED MODULE
to the second
Turn off main power to the sign. Wait five minutes for the high voltage to dissipate.
Verify that the
VDC with a multimeter as described in the opening paragraph of this
output cable connector.
t LED MODULE.
and/or the cable connecting from
(see Section 10.
10). Then
have been checked successfully as described in
previous
the remaining
LED
LED MODULE
#4….LED
Modules, Figure 9)
and we
and found that the sign momentarily
Failure to turn off power to the sign and wait five minutes
could result
Turn off power to the sign by turning off the corresponding Constant Current Regulator (CCR) power.
. This will allow
.) With your
multimeter set to DC Volts, verify that the Power Supply Output Voltage is less than 30
-VDC at TP6
upply Output Voltage
VDC, then you must wait until the Power Supply Output Voltage drops below 30
-VDC
output cable connector (see Fig
ure
black return cable connector
.