22
STACK menu settings
([DPSOH
&RYHU(UURU Lamp cover is opened.
/DPS(UURU Lamp does not light up.
)DQ(UURU Problem with cooling fan.
7HPS(UURU Temperature of the projector is too 
high.
$LU)ORZ(UURU Temperature of the projector is 
too high, check that the exhaust vents are not 
blocked.
)LOWHU(UURU The reading on the lter timer 
exceeds the hours set in the FILTER 
MESSAGE menu.  (
Operating Guide → 
OPTION menu → SERVICE)
&ROG(UURU The ambient temperature is too 
low.
● If you need to turn off a projector for reasons such as taking corrective actions 
for an error, turn off both the projectors so that Intellectual Stack can be started 
properly when the projectors are turned on again.  
● If the PIN LOCK or TRANSITION DETECTOR security function on both 
projectors is set to ON, both projectors will turn on.  Enter the security code for 
Main rst then followed by Sub.  If ALTERNATE mode is selected, one of the 
projectors will turn off automatically. (
Operating Guide → SECURITY menu)
● If the PIN LOCK or TRANSITION DETECTOR security function on one of the 
projectors is set to ON, it is necessary to enter the security code as follows 
when turning on the projector. 
-  In DUAL mode, both projectors will turn on.  Enter the security code for the 
projector that is locked by the security function. 
-  In ALTERNATE mode, if the projector locked by the security function is due 
to turn on according to the ALTERNATE mode setting, only that projector will 
turn on. Otherwise, both projectors will turn on.  Enter the security code for 
the projector that is locked by the security function.  After the security lock is 
released, one of the projectors will turn off if both projectors are turned on. 
3.7 Important information for Intellectual Stack (continued)