Troubleshooting
6
LED Drivers
Reference Drawings:
4 Column LED Driver II; Specifications
..............................................................
DWG-123783
Specifications; Driver, MCAST, 16 Col
...............................................................
DWG-284554
LED drivers perform the task of switching digits on and off within the display. LED drivers
are mounted to a driver tray. Refer to
to view the location and components of a
driver tray.
TRANSFORMER
10
5
BRN
TAN
9
4
PNK
7
2
ORG
8
3
6
1
WHT
BLU
8
3
TRANSFORMER
PNK
BRN
10
5
TAN
9
4
WHT
BLU
7
2
ORG
6
1
CR1
AC
AC
AC
AC
1
RED
BLK
2
PNK
3
TAN
4
SIGNAL OUT
SIGNAL IN
CUR. LOOP
SIGNAL
TB-31
POWER IN
J-3
J-1
HORN OUT
CR2
1
BLU
ORG
2
PNK
3
TAN
4
POWER
TB-42 POWER
1
2
3
4
BEFORE SERVICING.
DISCONNECT POWER
AT EXPOSED TERMINALS.
HAZARDOUS VOLTAGE
TENSION DANGEREUSE
À TERMINAUX EXPOSÉS.
DÉBRANCHEZ L'ÉLECTRICITÉ
AVANT L'ENTRETIEN.
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
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
ColorSmart
Driver Tray
Signal Terminal Block
Power Terminal Block
Horn Interface
Card
Transformers
Multicast
LED Driver
Driver Status
Indicators
Driver Status
Indicators
16-Column
LED Driver
Signal Terminal Block
Transformers
PanaView/UniView
Driver Tray
PanaView/UniView
Driver Tray (19 VDC)
Driver Status
Indicators
16-Column
LED Driver
Signal Terminal
Block
Power Terminal
Block
Figure 6:
Driver Tray Components
All ColorSmart scoreboards and ColorSmart-compatible statistics displays use 16-column
Multicast drivers, while some smaller displays use 4-column drivers. Several models
contain more than one driver to accommodate all of the digits and indicators. Refer
to the drawings attached to the product specification sheets listed in
Appendix A
to
determine the type and number of drivers for a particular scoreboard model. Also refer
to
Appendix B
for schematic drawings.
When troubleshooting driver problems, several LEDs provide diagnostic information. The
number of LEDs and their function depends on the driver type.
Note:
While it is necessary to have the display powered on to check the LED status
indicators, always disconnect power before servicing.
LED
Color
Function Operation
Summary
DS1
DS2
Green
Power
Steady on
DS1 (16-column) / DS2 (4-column) will be on and
steady to indicate the driver has power.
DS2
DS1
Red
Signal RX
Steady on
or blinking
DS2 (16-column) / DS1 (4-column) will be on or
blinking when the driver is receiving a signal and
off when there is no signal.
DS3
Amber
Status
Blinking
DS3 (16-column) will be blinking at one second
intervals to indicate the driver is running (
not
available on 4-column LED drivers
).
• Refer to
DWG-284554
in
Appendix C
for detailed driver pin out/switch specifications
of 16-column drivers.
• Refer to
DWG-123783
in
Appendix C
for detailed driver pin out/switch specifications
of 4-column drivers.
