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HOW LONG CAN I MAINTAIN BRIGHTNESS?
Software can maintain your “Intensity” setting until the required
power reaches the maximum rating for the lamp. The lower the setting, the longer it will take to reach this
threshold and the longer you can maintain the desired brightness.
Keep in mind that once the lamp power reaches its maximum wattage (see “Power”, above), this tracking is no
longer possible. At this point, the lamp will gradually begin to dim as usual, even though your original “Intensity”
value will still appear in the menu. To resume accurate tracking, reduce the intensity setting so that the resulting
“Power” value is less than its maximum — the lower the intensity, the longer it can be maintained.
For example, a 1000 watt lamp can be driven at no more than 1000 watts. To produce desired brightness at the
screen, a new lamp would likely need less than this maximum rating—perhaps 812 watts (example only). Over
time, however, the lamp will require more and more current in order to generate the desired light, until eventually
the lamp wattage reaches its 1000‐watt maximum and the lamp power automatically levels off. At this point, the
tracking function terminates (i.e., the power level stabilizes) and the lamp will begin to dim normally. Either reduce
your “Intensity” setting or replace the lamp.
Do not lower the “Intensity” so much that the corresponding “Power” value reaches its minimum — the intensity
setting will be inaccurate and cannot be maintained. For best results in achieving uniform intensity amongst tiled
images, choose an “Intensity” setting that enables all lamps to operate at less than the maximum number of watts
available in your projector but high enough to keep the corresponding lamp power above its minimum. See
“Power”, above.
NOTES:
1) Lamps become more stable over time, thus a specific intensity is more easily
maintained as the lamp ages. 2) Intensity can be set only if the lamp is in “Intensity” mode 3) Intensity cannot
exceed the output of Max Brightness mode.
IRIS
– The IRIS inside the projector controls the diameter of the light beam passing
through the system. With a fully open aperture (slidebar default of “0”), the maximum
amount of light passes through for maximum brightness in your images. Increase the
slidebar setting to reduce the aperture diameter and maximize contrast ratio instead.
LAMP HISTORY
– This read‐only option lists the lamps most recently installed and
recorded in the projector. Lamp History automatically updates whenever you record a
new lamp serial number — the new lamp is added to the bottom of the list.
Use
CHANGE LAMP
to record the serial number for a newly installed lamp:
In the Lamp S/N window, use the number text entry keys to record the new lamp serial number and press again to
accept the change. See Using Slidebars and Other Controls if you need help entering the number. Once entered,
the new lamp serial number will be added to the Lamp History menu and the Lamp Hours timer will reset to “0”.
Lamp Mode and Lamp Limit remain as they were for the previous lamp and can be changed at any time.
Summary of Contents for REF-1000
Page 1: ...1 REF 700 REF 1000 HOME THEATER PROJECTORS OWNER S MANUAL ...
Page 27: ...27 FIGURE 3 1 REMOTE KEYPAD Wired Remote ...
Page 94: ...94 Appendix B Menu Tree ...
Page 95: ...95 ...
Page 96: ...96 ...
Page 100: ...100 Sampling Messages and Their Meaning ...
Page 115: ...115 ...