Panasonic PT-DW7700 ENG - Manual (Page 73)

73
Lamp select
Two internal lamps in the projector can be used either
in “DUAL” or “SINGLE” mode depending on user's
needs or viewing conditions.
In the “SINGLE” mode, the projector may automatically
switches between one lamp and the other, or one of
the lamps can be specified.
“LAMP 1”: One lamp illuminates.
(Lamp Unit 1 is always used)
“LAMP 2”: One lamp illuminates.
(Lamp Unit 2 is always used)
“SINGLE”: One of the lamps illuminates.
(The lamp with shorter operating hours is
automatically selected)
“DUAL”: Two lamps illuminate.
Lamp power
The luminance of the projection lamp can be changed
depending on user's needs or the viewing conditions.
“LOW”: Set when high brightness is not necessary.
“HIGH”: Set when high brightness is necessary.
Note
LAMP SELECT LAMP1
LAMP2
SINGLE
DUAL
LAMP POWER LOW
HIGH
Note
• When set to “LOW”, it is possible to
reduce power consumption, reduce
operating noise and extend lamp
service life.
• “LOW” is set automatically when Long
Life Lamp Units are used.
• If any of “SINGLE”, “LAMP 1” and “LAMP 2” has
been selected, when a currently lit lamp expires, or
is turned off due to the elapsed time of lamp
lighting exceeding 1500
hours (with the lamp
output set at “HIGH”), the other lamp will be turned
on.
If “DUAL” has been selected, when either of the
two lamps expires, or is turned off due to the
elapsed time of lamp lighting exceeding 1500
hours, the other lamp with elapsed time not
exceeding 1500
hours continues lighting.
Further, if the elapsed time exceeds 1500 hours
for both lamps, the projector will enter a standby
state.
• If only one lamp is mounted, select “LAMP 1” or
“LAMP 2” according to the relevant lamp unit.
In “LAMP 1” or “LAMP 2” mode, if the
corresponding lamp is not installed, the other lamp
will turn on.
• If the lamp selection is changed, picture is muted
during lamp switching execution. (7-25sec.)
This time period is 4 000 hours when Long Life
Lamp Units (page 100) are used.