Display Troubleshooting
27
Controller Diagnostics
The Galaxy
®
GT6x controller is located in the lower-left
portion of the display in an environmental enclosure.
The controller receives incoming signal from the control
computer and routes that signal to the display. The
controller has three LEDs on it that can be useful when
troubleshooting a communication issue.
shows
those LEDs.
PLR Diagnostics
The ProLink Router (PLR), receives signal from the display
player, which transfers it on to the modules through
SATA cables. Galaxy
®
GT6x displays are equipped with
a redundant signal path, meaning two SATA cables
are connected to each module. If one of the two
SATA cables fail, the module continues to receive data
from the other SATA cable and the display continues
functioning normally.
PLR Self-Test
When put into self-test mode, the PLR tests for correct
operation and displays pass/fail status on the 7-segment
display.
To put the PLR into self-test mode, loop a SATA cable
between ports A and B. Then take a fiber cable and
connect the fiber ports together. Refer to
the cables are connected, cycle power to the PLR and it
will boot-up in self-test mode. Following is a table of a few
possible messages. Contact Daktronics Technical Support
for additional information or questions.
Code
Description
8
8
8
Testing 7 segments (held for 2 seconds)
t
s
t
Initial test in progress (60-second duration)
P
A
S
All tests passed
E
r
r
Test failures reported
F
0
1
Fiber Port A Error
F
0
2
Fiber Port B Error
F
0
3
RJ45 IN (Port A) Error
F
0
4
RJ45 OUT (Port B) Error
F
0
5
ProLink5 (SATA) Port A Error
F
0
6
ProLink5 (SATA) Port B Error
VIP RESET
DMP RESET
VIP RUN
DMP RUN
POWER
!
!
SATA A
DMP-USB
SATA B
ETHER
PWR/SNSR
CAUTION CASE MAY BE HOT
BOTTOM VIEW
ASSY NO.
SER.NO
MFG DATE
NOT FIELD SERVICEABLE
REPLACE AS A COMPLETE UNIT
201 DAKTRONICS DRIVE
P.O. BOX 5128
BROOKINGS, SD 57006
PHONE 1-800-DAKTRONICS
J20
J34
J21
J32
J36
VIP Run
DMP Run
Power
Figure 26:
Player Diagnostic LEDs
Figure 27:
PLR Self-Test Setup
