Daktronics WR-2101, Display Manual, Page: 13 / 38

Troubleshooting
9
Setting the Driver Address
Since the same LED drivers can be used for many display
models, each driver must be set to receive the correct
signal input, or address, for the model in which it is being
used. The way the address is set depends on the driver
type:
• For 16-column “Gyrus” drivers, addresses are set
through the S2 (L) and S3 (H) rotary switches on the
driver ( Figure 5 ) using a small flathead screwdriver.
Model
Driver #
& Address
Switch
Settings
WR-2101
WR-2102
WR-2103
A1 104 H = 6, L = 8
WR-2101
WR-2102
WR-2103
Driver located in WR-2101,
WR-2102, or WR-2103
• For older 16-column drivers, addresses are set with jumper
wires in a 12-pin plug which mates with jack J19 on the
driver ( Figure 6 ).
Note: If an older 16-column driver needs replacement, it will be replaced by a new
16-column “Gyrus” driver. It may be possible to simply reuse the same address
plug from the driver that was replaced. If not, refer to the table above to
determine the correct rotary switch address settings for the new driver.
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.
The electrical and signal specification drawings in Appendix A also specify the driver
connectors controlling the digits. Numbers shown in hexagons in the upper half of each
digit indicate which connector is wired to that digit.
Schematics
Reference Drawings:
Schematic; WR-2101 -2102 -2103 ...................................................................... DWG-214890
For advanced display troubleshooting and repair, it may be necessary to consult the
schematic drawings. DWG-214890 in Appendix A shows detailed power and signal
wiring diagrams of internal display components.
H
L
Figure 5: Driver Address Dials
J19
Figure 6: J19 Address Jack