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Chapter 3 Basic Operations — Switching on/off the projector
Relationship between brightness and runtime
The projector can be operated with arbitrary brightness and runtime by setting [LIGHT OUTPUT] to desired
setting.
The relationship between the [LIGHT OUTPUT] setting, brightness, and the estimated runtime is as follows. Make
the initial setting (operation setting) depending on the desired brightness of the projected image and runtime.
The values of the brightness and the runtime are just an estimate, and the graph indicating the relationship is just
an example. Also, these do not indicate the warranty period.
[LIGHT OUTPUT] (%)
100.0
69.5
29.0
*1 Estimated runtime is the time until the brightness decreases to approximately half of the time of delivery when the projector is used with the [PICTURE]
menu → [DYNAMIC CONTRAST] set to [2] and under environment of 0.15 mg/m
Note
f Under influences of characteristics of each light source, conditions of use, installation environment, etc., the runtime may be shorter than the
estimation.
f If the runtime exceeds 20 000 hours, replacement of the components inside the projector may be required. Consult your dealer for details.
f After completed the initial setting, the wider the combination of luminance and runtime becomes by setting the [PROJECTOR SETUP] menu
→ [BRIGHTNESS CONTROL] → [BRIGHTNESS CONTROL SETUP] → [CONSTANT MODE] to [AUTO] or [PC]. Refer to the [PROJECTOR
SETUP] menu → [BRIGHTNESS CONTROL] for details.
Initial setting (installation setting)
Set [FRONT/REAR] and [FLOOR/CEILING] in [PROJECTION METHOD] depending on the installation mode.
Refer to "Installation mode" ( x page 33) for details.
After completed the initial setting, you can change the setting from the [PROJECTOR SETUP] menu →
[PROJECTION METHOD].
1)
Press qw to switch the setting.
2)
Press the <ENTER> button to proceed to the initial setting.
46 - ENGLISH
Brightness (lm)
PT-FRQ60
6 000
4 200
1 700
100,0
90,0
80,0
70,0
60,0
50,0
40,0
30,0
20,0
20 000
21 000
22 000
23 000
24 000
Estimated runtime (hours)
INITIAL SETTING
PROJECTION METHOD
FRONT/REAR
FLOOR/CEILING
Change the projection method
(FRONT/REAR, FLOOR/CEILING)
if the screen display is upside down
or inverted.
MENU SELECT
SET
ENTER
Estimated runtime
PT-FRQ50
5 200
3 600
1 500
3
dust.
5 200 / 6 000
3 600 / 4 200
1 500 / 1 700
25 000
26 000
27 000
3/7
FRONT
AUTO
CHANGE
*1
(hour)
20 000
24 000
27 000
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