Troubleshooting
8
Segmentation & Digit Designation
Reference Drawings:
Segmentation, 7 Segment Bar Digit ...................................................................
DWG-38532
In each digit, certain LEDs always go on and off together. These groupings of LEDs are
referred to as segments.
DWG-38532
in
Appendix A
details which connector pin is wired
to each digit segment and the wiring color code used throughout the display.
Component Location drawings also specify the driver connectors controlling the digits.
Numbers shown in the upper half of each digit indicate which connector is wired to that
digit.
Schematics
For advanced troubleshooting and repair, it may be necessary to consult the schematic
drawings. These drawings, listed in
Appendix A
, show detailed power and signal wiring
diagrams of internal display components such as drivers and power supplies as well as
optional components like TNMCs, radio receivers, and horns.
LED Drivers
Reference Drawings:
Specifications; Gyrus LED Driver, 16 Col
.........................................................
DWG-3071833
LED drivers perform the task of switching digits on and off within the display. LED
drivers are located inside a driver enclosure. Refer to
components of a driver enclosure. For detailed descriptions and pin-outs of the driver
jacks, refer to
DWG-3071833
.
H
L
0 1 2
3
4
5
6
7
8
9
A
B
C
D
E F
0 1 2
3
4
5
6
7
8
9
A
B
C
D
E F
DAKTRONICS 201 DAKTRONICS DR. BROOKINGS, SD PHONE 800-325-8766
SUITABLE FOR SERVICING ONLY WHEN DE-ENERGIZED
PUET FAIRE L'OBJET D'UN ENTRETIEN UNIQUEMENT S'IL EST HORS TENSION
CONFORMS TO
UL STD 48
CERTIFIED TO CSA
STD C22.2 NO. 207
17800
300 W Power Supply
(Additional power supplies
may be located in
separate enclosures)
Fan
16-Column
LED Driver
Driver Status
Indicators
Driver Address
Switches
Horn Interface Card
(Optional)
Signal Surge OR
Fiber Input
(Primary Driver Only)
Power Terminal Blocks
Alternate Power Spec
Label Location
(After July 2020)
CAUTION: TURN OFF ALL INTEGRAL DISCONNECTS BEFORE
SERVICING.
ATTENTION: METTRE HORS TENSION TOUS LES SECTIONNEURS
INTEGRS AVANT D'ENTREPRENDRE LE DEPANNAGE.
INSTALLER A L'EXTERIEUR
OUTDOOR USE
Figure 9:
Driver Enclosure Components (Gyrus)
