DOCUMENT 1218
REV. B
Instruction Manual
AGS-LED
312 LED Series
300mm and 400mm
20
Problem
Possible Cause
Corrective Action
P.7 Sign will not light
LED strip(s)
mounted/wired
incorrectly
Verify that LED Modules
are mounted and wired
correctly. See
Figure 32,
pg. 59,
for proper LED
strip and Lens mounting.
See LED wiring diagrams,
Figures 53-57, 59, 61 &
62, pgs. 80-83, 85, 87 &
89
.
P.8 Sign will not light
Wire(s) are loose or
broken.
Connection(s) are
missing.
Verify wiring connections
match the appropriate
wiring diagram. See
Figures 45 - 51, pgs. 72-
78,
for electronics
enclosure wiring diagrams.
See
Figures 53-57, 59, 61
& 62, pgs. 80-83, 85, 87
& 89
. for LED Array
Wiring diagrams.
P.9 Sign will not light
Open circuit within
the LED Strip(s)
(Assuming P.7
Action has been
taken)
Replace shorted LED
strip(s) or LED Cable(s)
with a new LED strip or
LED cable. See
Section
10.6, pg. 23
.
P.10 Sign
Blinks/Flickers
Isolation
Transformer is not
sized properly
Replace Isolation
transformer with one of
the correct size. Review
Tables 10 - 16, pgs. 80,
81, 82, 84, 86, 88, and 89
for correct transformer
sizes. See
Section 10.5.4
pg. 21,
for further
explanation of action
steps.
P.11 Sign
Blinks/Flickers
A power supply is
operating in fault
condition
A power supply operating
in fault condition (blinking
status LED, see
Figure
52,
pg. 79
) can starve the
other power supplies in
same sign. Review Actions
P.3 and P.4.