NEC NP40 - Manual (Page 59)

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8. Connect the supplied power cable and turn on the projector.
9. Finally, select the menu
→ [Reset] → [Clear Lamp Hours] to reset the lamp usage hours.
NOTE: When the lamp exceeds 2100 hours (up to 3100 hours in Eco mode) of service, the projector cannot turn on and the
menu is not displayed.
If this happens, press the HELP button on the remote control for 10 seconds to reset the lamp clock back to zero.
When the lamp time clock is reset to zero, the LAMP indicator goes out.
S-VIDEO IN
VIDEO
IN
N
AC IN
6. Maintenance
(2) Tighten the cooling pump cover screw.
- Be sure to tighten the cooling pump cover screw.
This completes the cooling pump replacement.
Go on to the next step.