Accu Spot 300
Controls and Functions
American DJ
®
- www.americandj.com - Accu Spot 300 Instruction Manual Page 9
vary their velocity at different operating temperatures, to provide
better cooling when the unit reached higher operating temperatures
associated with long usage. Be sure to never obstruct the cooling fans
during normal usage. Also, be sure to keep the vents clean at all times.
A blocked or malfunctioning cooling system may shorten lamp life and
unit reliability.
13. Lamp Assembly and Access Plate -
This plate accesses the lamp
socket assembly. The unit includes a spring mounted ZB-MSD250
230v/250w discharge lamp. Be sure to only replace with same type
lamp. After replacing a lamp be sure the lamp is centered in the reflec-
tor. See page 32 for details on installing and optimizing replacement
lamps. Never operate this unit with the lamp exposed, this lamp emits
strong UV radiation.
14. Fuse Holder -
This housing stores a 8 amp (4 amp 220v) GMA pro-
tective fuse. Never defeat the fuse, the fuse is designed to protect the
electronics in the event of severe power fluctuations. Always be sure
to replace the fuse with an exact match as the one being replaced,
unless otherwise told to do so by an authorized American DJ
®
service
technician.
15. Power Cord Inlet -
This unit is equipped with a removable I.E.C.
power cord. Be sure to only use the power cord included with the
unit, this cord is designed to match the electrical requirements of the
unit. Other cords may cause the unit to overheat or malfunction. Volt-
age may vary from venue to venue, when connecting this unit to a
power supply be sure to connect to a matching power outlet. Never
use this fixture if the ground prong has been removed or broken off.
The ground prong is designed to reduce the risk of fire or electrical
shock in the event the unit suffers from an internal short.
American DJ
®
- www.americandj.com - Accu Spot 300 Instruction Manual Page 10
Power Supply:
Before plugging your unit in, be sure the source volt-
age in your area matches the required voltage for your American DJ
®
Accu Spot 300.™ The American DJ
®
Accu Spot 300 is available in a
120v and 220v version. Because line voltage may vary from venue to
venue, you should be sure your unit voltage matches the wall outlet
voltage before attempting to operate you fixture. Also be sure to only
use the included I.E.C. power cable supplied with the unit, this cable
matches the voltage and current requirements of the unit.
DMX-512:
DMX is short for Digital Multiplex. This is a universal pro-
tocol used by most lighting and controller manufactures as a form of
communication between intelligent fixtures and controllers.
A DMX
controller sends DMX data instructions from the controller to the fix-
ture. DMX data is sent as serial data that travels from fixture to fixture
via the DATA “IN” and DATA “OUT” XLR terminals located on all DMX
fixtures (most controllers only have a DATA “OUT” terminal).
DMX Linking:
DMX is a language allowing all makes and models
of different manufactures to be linked together and operate from a
single controller, as long as all fixtures and the controller are DMX
compliant.
To ensure proper DMX data transmission, when using
several DMX fixtures try to use the shortest cable path possible. The
order in which fixtures are connected in a DMX line does not influence
the DMX addressing. For example; a fixture assigned a DMX address
of 1 may be placed anywhere in a DMX line, at the beginning, at the
end, or anywhere in the middle. Therefore, the first fixture controlled
by the controller could be the last fixture in the chain. When a fixture
is assigned a DMX address of 1, the DMX controller knows to send
DATA assigned to address 1 to that unit, no matter where it is located
in the DMX chain.
Data Cable (DMX Cable) Requirements (For DMX
and Master/Slave Operation):
The Accu Spot 300
can be controlled via DMX-512 protocol. The Accu
Spot 300 is a eleven channel DMX unit. The DMX
address is set electronically using the controls on
the side panel of the unit. Your unit and your DMX
controller require a standard 3-pin XLR connec-
tor for data input and data output (Figure 1). If you
are making your own cables, be sure to use standard two conductor
Accu Spot 300
Set Up
Figure 1
