Turning The Lamp On/Off; If The Lamp Won’t Turn On; Adjusting Lamp Power - Christie CP2000 User Manual

BASIC OPERATION
Turning the Lamp on/off 
If the Lamp Won't Turn On 
Adjusting Lamp Power 
(
LiteLOC or Manually

3-44
ON:
With all CP breakers set to ON, ignite the lamp by pressing the lamp button on
the Main menu of the TPC—make sure to press and hold for approximately ½
second.
OFF:
To turn the lamp off, press the lamp button on the Main menu of the TPC—
make sure to press and hold for approximately ½ second. Then
for 10 minutes to cool the lamp and other components then turn off all breakers.
If the lamp fails to ignite, the projector will automatically re-try ignition using 100%
of the maximum power acceptable for the lamp. If this re-try also fails, and there is
no interlock problem such as an open lamp door, a new lamp is likely needed.
NOTES: 1) Requires Advanced/Admin TPC rights. 2) Keep in mind the formula: Current
)
(Amperes) x Voltage (Volts) = Lamp Power (Watts). 3) Adjust LiteLOC
adjustment of lamp position.
There are two different lamp modes for general operation—you can maintain either a
specific brightness level (LiteLOC
Using LiteLOC

Maintain a specific brightness level from your lamp over time as follows (Figure
3.37):
1. In the TPC's Advanced: Lamp menu, adjust Lamp Power until the desired
light output is reached at the screen (typically 14 fL). Any LiteLOC
automatically be disabled.
2. Press "Set" to record the current brightness reading in memory (NOTE:
arbitrary units-of-measure are shown above the light output bar).
3. Enable LiteLOC
will gradually and automatically supply more current to the lamp as
necessary to maintain your chosen level of light output for as long as
possible (the light level is read from an internal light sensor).
To change your LiteLOC
"Set". The LiteLOC
WHEN SHOULD I USE LiteLOC?

LiteLOC for daily operation, since it need only be set once for each lamp install,
and ensures consistent worry-free brightness at the screen for as long as possible. If
desired, reset LiteLOC
lamp power setting.
HOW LONG CAN I MAINTAIN BRIGHTNESS?
setting until the required power exceeds the maximum rating for the lamp (2.0, 3.0,
4.5, or 6.0 kW) by approximately 10%. The lower your LiteLOC
longer it will take to reach this "over-drive" threshold and the longer you can
maintain the desired brightness.
For example, a 6000 watt lamp (6.0 kW) can be safely driven at no more than 6600
watts. To produce 14 fL at the screen, a new lamp would likely need less than this
maximum rating—perhaps 5120 watts (example only). Over time, however, the lamp
will require more and more current in order to produce the 14 fL, until eventually the
lamp wattage reaches its 6600 "overdrive" maximum, and the power to it

) or a specific lamp power level:

. As the lamp ages and loses efficiency, the projector

setting, adjust the Lamp Power as desired and then press

function will automatically begin to maintain this new setting.
Typically, most theatre installations would use

to a different level at any time, or override with a specific
Software can maintain a LiteLOC
WAIT
for fans to run

before or after

will


setting, the
LIT MAN USR CP2000
020-100032-04 Rev. 1 (03/14)