Daktronics AB-1010 - Manual (Page 30)

Maintenance & 4-6
e Venus 1500 controller.
onnect to the OFF position.
each of the current loop output cards. Any unused current loop outputs
ending on specific site requirements, displays may be shipped in different sections
t the appendix at the end of this
on, refer
vidual current loop output board connects to each
ks
d between the output cards, and exit through the conduit
r of conduit
knockouts used varies with the display matrix size, V15DR model number and number of
conductors in each output cable.
When the cables
connected, rou d and fasten the strain relief cable ties.
Be sure there is no excessive strain al wires.
4.10 Display C stem
Complete the following steps to remove th
1. Flip the main disc
2. Disconnect all power and signal connections from the controller board.
3. Remove the nuts holding the controller board in the enclosure.
4. Write down the MDC switch settings.
5. If sending the controller back to Daktronics, keep the modem or fiber board (if present) and
all mounting hardware.
When installing a new display controller, verify the MDC DIP switch is set correctly.
Current Loop Output Card Termination
The drawings provide guidelines for wiring the current loop output terminals and the driver for
each module of the display. The label on the inside of the V15DR enclosure shows where to plug
in each connector on
should be left unconnected.
Note: Dep
or configurations and wiring instructions may vary. Consul
manual for information specific to your site.
t represents the height and length of your secti After determining which V15DR model bes
to Drawing A-138543 to see how each indi
module driver.
When all applicable terminations have been made on each terminal block, plug the terminal bloc
into the cards as designated on the label inside the enclosure.
The output cables should route downwar
knockouts at the bottom of the V15DR enclosure. The actual routing and the numbe
are te the cables downwar
on any of the individu
ooling Sy
gs:
etail
syste
is lo and
t. The first bre to driver A101 at the
Reference Drawin
Fan Mounting D .............................................................................. Drawing A-43185
The display cooling
m consists of a fan control thermostat assembly and cooling fans. The
thermostat assembly cated at the top the center of the master display cabinet. It stud mounts to
the display back shee aker panel board provides power to the fans
and thermostat.
The
mentary
swi display cooling fans to turn on at 140
deg rees Fahrenheit. The momentary switch is used to check
fan operation. Check fans periodically to ensure they are running smoothly.
The stainless steel ball bearing fans provide cooling to the interior of the master cabinet only and are
thermostatically controlled. The fan air inlets are located in the bottom of the cabinet. The fans
thermostat assembly consists of a fuse (MDL-2 ½ amp, 125 volt), temperature sensor, mo
tch and an enclosure. The temperature sensor activates the
rees Fahrenheit and to turn off at 110 deg
Troubleshooting