
OWNERS MANUAL Page 4 of 12
SM - 280 DMX LIGHTING CONTROLLER Version 20080324
Lightronics Inc. 509 Central Drive Virginia Beach, VA 23454 757 486 3588
16. Spl Scene: Accesses one of 14 additional
scenes which are independent of
scenes in normal banks.
17. Tap / Display:
Tap: Controls the speed of Auto-Run Scenes and
chases. Push TAP several times at the rate
you want the scenes or chases to run. This is
an alternative to using the SPEED fader.
Display: Used to alter the format of some display
information items.
18. Pause: Temporarily stops Auto-Run scenes and
chases. The DMX channel levels will
hold their current setting during pause.
Push briefly to turn Pause ON or OFF.
19. Memory Select: Switches SM-280 operation
between internal memory and
the external memory card.
20. Page A/B: Controls which DMX channels are
active for the channel faders. Channels
1 - 8 are Page A. Channels 11 - 18 are
page B. Both A and B can be active at
the same time.
21. Program / Record:
Program: Switches the SM-280 into the program
mode. Hold it down for about 3 sec. to
toggle program mode ON or OFF. The
program mode indicator flashes when the
unit is in program mode.
Record: Used in program mode during recording of
scenes and chases. Also used in Setup to
record changes.
22. Speed Slider: Controls the speed of Auto-Run
scenes and chases. The range is
0.1 sec./step to 10 min./step. Also
used when assigning channel
functions in Setup mode.
23. Fade Slider: Controls the fade time of Auto-Run
scenes and chases. The range is 0
sec. to 30 sec.. Also used when
assigning channel functions in
Setup mode.
24. Power ON/OFF: Controls SM-280 main power.
25. Pan Wheel: Controls left/right operation of
fixtures when assigned.
26. Tilt Wheel: Controls up/down operation of fixtures
when assigned.
27. Fog Machine: Controls remote operation of
certain types of fog machines.
28. Black: (Blackout) Sets all DMX channels to zero
level output. A Setup procedure can be
used to prevent a fixture channel form
being affected by this function.
REAR PANEL CONNECTORS AND CONTROLS
All SM-280 external connections are made at the rear
panel. A rear panel diagram identifies the connectors.
See the sections DMX CONNECTIONS and DMX
CONNECTOR PIN ASSIGNMENTS for details about
the DMX signal connections.
DO NOT APPLY AC LINE POWER TO THE FOG
MACHINE CONNECTOR. It is only for remote
control of certain compatible fog generating machines.
CHARACTER SYMBOLS IN THE DISPLAY
The controller LCD display often will show the *
(asterisk) character for a value which has not yet been
set or selected. Unless a specific example is being
given the display diagrams in this manual will show
the * character as place holders instead of the actual
characters.
INITIAL CONTROLLER SETUP
Several SM-280 functions can be modified to change
the way that a fixture responds to the controller.
1. You can rearrange fixture channel assignments.
2. You can reverse the action of the faders.
3. You can select whether or not a fixture channel is
affected by the controller fade time.
4. You can change the effect of the blackout function
for fixture channels.
The Setup Mode is used to control these functions.
ENTER SETUP MODE
1. Push Setup. The display will appear as below.
2. Push Fixture and select a fixture by pushing its
Scanner / Scene Button (1 - 14). The display
below uses fixture 1 as an example.
Setup
Select: + / –
Sel" Fixture 01
Setup: Scanner