Notes of a Native-Speaking English Teacher

This is the message the obscures anything I'm trying to show to my students.

I was told a while back that it "needed cleaning".  I thought it was for the lens.  This is actually a message about cleaning the filter.  The filter is typically on the side.

The filter should come right out.  If you run it under the tap, let it dry and put it back inside.

Then, go into the projector menu and reset the Filter Timer.

Click on the MENU button on the remote control.   

Press the DOWN ARROW KEY until you reach the 기타 function.

Once there, press the RIGHT ARROW KEY (or MODE KEY) to get into the right column.

Press the DOWN ARROW KEY to get to the 필터 타이머 (filter timer) function.

Once there, press the UP ARROW KEY to get to 초기화.  This resets the timer.

It will usually read above 100 hours, except in this demo I am using a projector that I reset on the previous day. ^^

Now the timer should read 0 hours.  Press the MENU key again to exit.

This should prevent that grey screen from coming up!