NEC DT20 User Manual page 55

OHP PC1/PC2 VIDEO
Setting 1
Lamp usage time
Input signal 1024 x 768 / 48.6KHz 60H
Auto power off ON
ON
Start-up display
Economy mode ON
Standard
NOTE
• As a safety precaution, the lamp does not turn on unless the lamp unit cover is installed.
• The lamp unit sold separately comes with an air filter as part of the lamp kit. When replacing the lamp unit, be
sure to replace the air filter as well. (See page E-56.)
• The lamp can be disposed as a regular household fluorescent light, follow the disposal procedure recommended
by the local government.
2
Loosen the lamp unit retaining screws.
Loosen the lamp unit screws. (2 pieces)
3
Draw out the lamp unit.
Hold the handle and lift the lamp unit upward.
4
Install a new lamp unit.
q Hold the lamp unit and push it in.
w Make sure that the two positioning protrusions fit
e Tighten the two lamp unit retaining screws.
r Align the three tabs on the lamp unit cover with the
5
Reset the lamp usage time.
Perform the following in the standby state.
MENU
Press the
the
The LAMP/COVER LED then blinks green.
q
w
CAUTION
e
6
Verify that the display of lamp usage time
in the Lamp Setting menu is "0H" as
0H
shown to the left.
If the lamp usage time is not reset, reset it by repeating
/ OFF
/ OFF
step
/ OFF
CAUTION
Return
E-55
properly into the holes.
slots on the projector to attach it. Then tighten the
two lamp unit cover retaining screws.
VIDEO PC1/PC2 OHP
, and buttons once in that order with
MENU button held down.
Do not reset the lamp usage time without replacing the lamp.
The probability of a lamp explosion increases if the
cumulative usage time of the lamp is more than 1500 hours.
5
.
Be sure to reset the lamp usage time after replacing the
lamp. Otherwise, the correct usage time cannot be known.
When the display exceeds 1500 hours, the power to the lamp
is forcibly turned off regardless of the lamp's life.
Maintenance