Daktronics P1753, Руководство пользователя

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Troubleshooting
15
DWG-3438261 and DWG-3438262 in Appendix A indicate the driver connectors
controlling the digits. The numbers shown in the upper half of a digit indicate which driver
connector is wired to it.
LED Driver
Reference Drawings:
Specifications; LED Driver IV, 16 Col ................................................................. DWG-288137
Specifications; Gyrus LED Driver, 16 Col ......................................................... DWG-3071833
Schematic; Battery Operated TI-XXXX w/Horn (prior to June 2016) ........... DWG-3074676
Schematic; Battery Operated TI-XXXX with Horn .......................................... DWG-3333212
Component Location; TI-2203 ......................................................................... DWG-3438261
Component Location; TI-2215 ......................................................................... DWG-3438262
The LED driver performs the task of switching digits on and off within the display. LED
drivers are located inside of a driver enclosure. Refer to DWG-3438261 and DWG-3438262
to view the location of the driver enclosure. Refer to DWG-3333212 for detailed wiring
schematics.
Note: For displays built before June 2016, refer to DWG-3074676 for wiring schematics.
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 indicators,
always turn off display power before servicing.
16-Column "Gyrus" Drivers
LED Function Operation Summary
DS1
Radio/
RS-232 RX
Blinking
or off
DS1 will be blinking when the driver is receiving radio
signal and off when there is no signal.
DS2 Status Blinking
DS2 will be blinking at one second intervals to indicate
the driver is running.
DS5 Signal RX
Blinking
or off
DS5 will be blinking when the driver is receiving current
loop signal and off when there is no signal.
DS8 Power Steady on DS8 will be on and steady to indicate driver has power.
For detailed descriptions and pin-outs of the driver jacks, refer to DWG-3071833 .
16-Column Drivers (prior to April 2015)
LED Function Operation Summary
DS1
Radio/
RS-232 RX
Blinking
or off
DS1 will be blinking when the driver is receiving radio
signal and off when there is no signal.
DS2 Status Blinking
DS2 will be blinking at one second intervals to indicate
the driver is running.
DS5 Signal RX
Blinking
or off
DS5 will be blinking when the driver is receiving current
loop signal and off when there is no signal.
DS8 Power Steady on DS8 will be on and steady to indicate driver has power.
For detailed descriptions and pin-outs of the driver jacks, refer to DWG-288137 .