4
8
0
3
C
X
L
V
•
p
o
w
e
r
s
u
p
p
ly
4
8
0
3
C
X
L
V
•
p
o
w
e
r
s
u
p
p
ly
8
9
4803CX LV Power Ratios
Ratios apply to independent use of standard outlets. The four standard outlets represent:
1 - 800Ws single outlet, & 1 - 1600Ws single outlet which form the left channel; & 1 high power
double outlet which forms the 2400Ws center channel.
NOTE: Power is shared between the top high power outlet and the two left standard outlets (“X’s”
in the above diagram); power is also shared between the bottom high power outlet and the middle
two outlets. (“O’s” in the above diagram)
HIGH
POWER
CHANNEL
AND
OUTLETS
STANDARD
POWER
CHANNELS
AND
OUTLETS
HIGH
POWER
CHANNEL
AND
OUTLETS
STANDARD
POWER
CHANNELS
AND
OUTLETS
x
x
x
O
O
O
4803CX LV Operating Instructions
The following sequence of operation should be utilized for maximum
life and dependability of the 4803CX LV power supply.
Make sure that the
Model
and
Power
switches are in the off position and
the
Reset
button (circuit breaker) is fully depressed into its socket.
Connect light unit cable(s) to the
Light Unit Outlet(s)
on the power
supply, selecting the appropriate outlet(s) for the desired power level. Any
Black Line Universal Light Unit may be attached to the left and center
Light
Unit Outlets.
Only Model 206VF light units may be attached to the right
Light Unit Outlets.
(See Universal Light Units section of this manual for
information on assembling light units.)
Set
Isolate/Combine
switches and
Variable Power Control
as desired.
See the side of the power supply for various ratio combinations. With the
Variable Power Control
in the full position, power is determined by the
choice of outlets and position of ratio switches. The
Variable Power Control
simultaneously changes power of all three channels. Rotating the
Variable
Power Control
immediately adjusts the power level of the 4803CX LV. The
power supply does not need to be discharged between settings.
Turn
Power
switch to on position. The red
Charge
indicator will
illuminate. After a few seconds, the green
Ready
indicator will illuminate and
an audible beep will sound. (The beep will not be produced when a very
small power change is made. Changing the power level by a 1/3 f-stop or so
is done very rapidly with the 4803CX LV; the
Ready
light will usually remain
on and the beep will not sound.) The power supply is now charged to the
selected level, and ready to fire.
Do not
immediately fire the unit on the first use or when the unit has
been idle for periods over 3 weeks. Allow several minutes for the power
supply’s capacitors to form. When the power supply has been used recently
you may fire the unit immediately.
Push to Flash
button may be depressed
to verify proper system operation.
When Power is on, be sure
Ready
indicator is illuminated before
switching
Power
or
Fast/Slow.
Do not
move these switches while the unit
is recycling.
When changing light ratios by moving light cables, we recommend that
you turn the power supply off. Though arc-protection is included with all
Speedotron systems, the safest method for changing ratios is to turn the
power off before moving the light unit cables.
When disassembling the system, turn
Power
switch to the off position.
The 4803CX LV power supply will automatically discharge its storage
capacitors.
Do not
push the
Push to Flash
switch before turning power
supply off. This may damage power supply. Power supplies may flash their
light units when turned off. This is normal.
Unplug power cord from outlet, then disconnect light units from power
supply.
